A Stereo-Atlas of Ostracod Shells
edited by J. Athersuch, D. J. Horne, A. R. Lord, D. J. Siveter,
and J. E. Whittaker
Published under the aegis of the British Micropalaeontological Society, London
ISSN 0952-7451
Editors
Dr J. Athersuch, StrataData Ltd., 16 Ottershaw Park, Ottershaw, Surrey KT16 OGQ.
Dr D.J. Horne, School of Earth Sciences, University of Greenwich, Walburgh House, Bigland Street,
London El 2NG.
Professor A.R. Lord, Department of Geological Sciences, University College London, Gower Street,
London WC1E 6BT.
Dr David J. Siveter, Department of Geology, The University, Leicester LEI 7RH.
Dr J.E. Whittaker, Department of Palaeontology, The Natural History Museum, Cromwell Road, London
SW7 5BD.
Editorial Board
Dr J.-P. Colin, Esso Production Research - European, 213 Cours Victor Hugo, 33321 Begles, France.
Dr M.A. Ayress, Department of Geology, The Australian National University, G.P.O. Box 4, Canberra,
ACT 2601, Australia.
Dr W. Hansch, Naturhistorisches Museum, Kramstrasse 1, 74072 Heilbronn, Germany.
Prof. R. Lundin, Department of Geology, Arizona State University, Tempe, Arizona 85287-1404, U.S.A.
Dr R.E.L. Schallreuter, Universitat Hamburg, Geologisch-Palaontologisches Institut, Bundesstrasse 55,
20146 Hamburg, Germany.
Prof. N. Ikeya, Institute of Geosciences, Shizuoka University, Shizuoka 422, Japan.
Officers of the British Micropalaeontological Society
Chairman Professor A.R. Lord, Department of Geological Sciences, University College London, Gower
Street, London WC1E 6BT.
Secretary Dr J.B. Riding, British Geological Survey, Keyworth, Nottingham NG12 5GG.
Treasurer Dr I.P. Wilkinson, British Geological Survey, Keyworth, Nottingham NG12 5GG.
Journal Editor Professor J.W. Murray, Department of Geology, The University, Southampton S09 5NH.
Newsletter Editor Dr A.J. Powell, Millenia Ltd., Unit 3, Weyside Park, Newman Lane, Alton, Hampshire
GU34 2PJ.
Conodont Group Chairman Dr S.J. Tull, Cambridge Arctic Shelf Programme, West Building, Gravel Hill,
Huntington Road, Cambridge CB3 ODJ.
Conodont Group Secretary Dr I.J. Sansom, School of Earth Sciences, The University, Birmingham B15 2TT.
Foraminifera Group Chairman Dr M.D. Simmons, BP Exploration Operating Company Ltd., 4/5 Long
Walk, Stockley Park, Uxbridge, Middlesex UB11 IBP.
Foraminifera Group Secretary Dr S.R. Packer, Millenia Ltd., Unit 3, Weyside Park, Newman Lane,
Alton, Hampshire GU34 2PJ.
Ostracod Group Chairman Dr N.R. Ainsworth, Riley Associates, 2 Millers Rise, St. Albans, Herts AL1 1QW.
Ostracod Group Secretary Dr I.D. Boomer, Institute of Earth Studies, The University of Wales, Penglais,
Aberystwyth, Dyfed SY23 3DB.
Palynology Group Chair Professor D.J. Batten, Institute of Earth Studies, The University of Wales,
Penglais, Aberystwyth, Dyfed SY23 3DB.
Palynology Group Secretary Dr D. McLean, Department of Earth Sciences, The University, Sheffield SI 3JD.
Calcareous Nannofossil Group Chairman Dr J. Burnett, Department of Geological Sciences, University
College London, Gower Street, London WC1E 6BT.
Calcareous Nannofossil Group Secretary Ms D. Windley, Department of Geological Sciences, University
College London, Gower Street, London WC1E 6BT.
Instructions to Authors
Contributions illustrated by scanning electron micrographs of Ostracoda in stereo-pairs are invited. Format
should follow the style set by the papers in this issue. Descriptive matter apart from illustrations should be
cut to a minimum; preferably each plate should be accompanied by only one page of text. Blanks to aid in
mounting figures for plates may be obtained from any one of the Editors or Editorial Board. Completed papers
should be sent to one of the Editors. All contributions submitted for possible publication in the Stereo-Atlas
of Ostracod Shells are reviewed by an appropriate international specialist.
The front cover shows the holotype (RV) of Ilyocypris quinculminata Sylvester-Bradley, 1973, from the
Hoxnian Interglacial (Pleistocene) of Trysull, Staffordshire, England, The Natural History Museum, London
(BMNH) no. Io 5542. Described and illustrated in the very first issue of the Stereo-Atlas of Ostracod Shells
(1 (15) 85-88) by its founder, the late Professor P.C. Sylvester-Bradley. Rephotographed by J.E. Whittaker.
A Stereo-Atlas of Ostracod Shells
Papers in Honour of P.
C. Sylvester-Bradley
1994
Volume 21; Part 2; 31st December,
Stereo- Atlas of Ostracod Shells 21 , ii
PETER COLLEY SYLVESTER-BRADLEY
1913-1978
The year 1994 sees the 21st Anniversary and Volume 21 of A Stereo-Atlas of Ostracod Shells. The opportunity
has been taken to dedicate this issue of papers (Volume 21, Part 2) to the memory of the journal’s founder, the late Professor
P.C. Sylvester-Bradley. It has been assembled from contributions (and supported by the patronage) of his former students
and colleagues and those who hold his memory dear. Generous financial support of several institutions has also facilitated
its publication.
Peter Sylvester-Bradley was F.W. Bennett Professor of Geology in the University of Leicester, England. He was,
by any standards, an exceptional individual who contributed fully to local, national and international scientific and other
academic endeavours. Those who knew him counted themselves fortunate to have done so, for he had the unswerving ability
to bring out the best in people at all levels. He was a charismatic and inspirational teacher whose witty, thought-provoking
lectures are, for many, still the yardstick by which others are judged. His published works are by no means legion, for he
devoted the major part of his academic career to overseeing the growth and well-being of his department and its staff and
students, but the titles do hint at what is indisputable, that here was a man of breadth and vision. From papers such as
‘Evidence for abiogenic carbon’, ‘Iterative evolution in fossil oysters’ and ‘Deepsea ostracods..in..Tethys’ to ‘Evolution
versus entropy’, ‘The evolution of ethics’ and ‘Evolution and the destiny of Man’, he could never be accused of narrow
interests. An enthusiast in all that he tackled and often outrageously unconventional in his approach (the mini-bus journey
from Leicester to Dorset in southern England, with his final year undergraduate field party, had to follow the geological
strike of his beloved Jurassic rocks), the Stereo-Atlas of Ostracod Shells was his brain-child and was typical of his innovative
style.
A Stereo-Atlas of Ostracod Shells was launched in 1973 with Peter Sylvester-Bradley and his then Postdoctoral
Associate, David Siveter, as editors. Its aims were simple enough - to harness and disseminate the scientific revolution which
the scanning electron microscope provides to micropalaeontology. As he declared under the opening article of the very first
issue, this "New Palaeontography" places priority on the illustrations as a language easily communicated and understood by
the international palaeontological community. To that end the Stereo-Atlas was designed with a (still) unique format: a high
number of illustrations-to-text ratio, an emphasis on stereo-photography and a policy of producing plates about as good as
technology can achieve. Its authorship and readership are international and the Stereo-Atlas can fairly claim to have been
true to its aims. As a specialist publication its long term health still crucially depends on the support of ostracodologists
worldwide.
Initially produced under the imprint of the Department of Geology at the University of Leicester (1973-1975) and
then for one year by Broadwater Press (Welwyn Garden City), during 1977-1981 it was published jointly by (the then)
Robertson Research International (Llandudno, Wales) and the British Micropalaeontological Society, London, since when
it has appeared solely under the aegis of that Society. The British Museum (Natural History), London and the Department
of Geology at the University College of Wales, Aberystwyth also provided invaluable logistical support in the early years
of publication. Since 1981 the production of the Stereo-Atlas has been entrusted to BPC Blackpool Ltd (or its predecessors)
to whom a great debt is owed for the sheer quality of publication, especially of the plates. Over the years all of those who
served as editors or have been closely involved with the day-to-day running of the Stereo-Atlas have, perhaps appropriately,
been mainly former students or former research associates of Peter Sylvester-Bradley: John Athersuch, Ray Bate, Cyril
Haskins, David Horne, Alan Lord, Bob Lundin, John Neale, Lesley Sheppard, David Siveter, Robin Whatley and John
Whittaker.
After his sadly premature death in 1978, such was the respect for Peter Sylvester-Bradley that thematic sets in the
'Proceedings of the Geologists’ Association (Volume 91, parts 1, 2, 1980) and two books by the British Micropalaeontological
Society (A Stratigraphic Atlas of British Ostracods, eds. R.H. Bate & E. Robinson, 1978; and Fossil and Recent Ostracods,
eds. R.H. Bate, E. Robinson & L.M. Sheppard, 1982) were published in his honour; Euan Clarkson also dedicated his book
Invertebrate Palaeontology and Evolution to him. As one of the early Presidents of the British Micropalaeontological Society
and the founder of one of its publications, it is entirely fitting that we publish this part of the 21st Anniversary Volume of
A Stereo-Atlas of Ostracod Shells in his memory. Many of the illustrations within capture the beauty of the fossil world,
a source of never-ending scientific fascination to Peter Sylvester-Bradley himself.
The cost of this publication has been partly met by the generous patronage of the following:
A.L.F. Al-Furaih, M. Angel, M.A. Ayress, J-P. Colin, N. Doruk, L. Ferguson, J.R. van der Fliert, J. Green, W. Hansch,
D.J. Horne, N. Ikeya, K. Ishizaki, P.J. Jones, M.C. Keen, E.K. Kempf, E.-H. Lee, A.R. Lord, K. Martens, C.A.
Maybury, K.G. McKenzie, H.J. Oertli, I. Okubo, J.E. Pollard, Q.A. Siddiqui, D.J. Siveter, Y. Tambareau,H. Uffenorde,
R.C. Whatley, J.E. Whittaker, I.P. Wilkinson and V. Winkler.
Several learned societies and companies are also thanked for their financial support. Their logos or advertisements
appear on the front cover and inside back page of this issue. They are: The British Micropalaeontological Society, The
Geologists’ Association (Curry Fund), The Palaeontological Association, The Geological Society, StrataData Ltd., BPC
Blackpool Ltd., Laserscan Ltd. (Lytham St. Annes), Blackpool Typesetters, Robert Horne Ltd. (Bolton) and E. Fish Binders
Ltd. (Liverpool).
Overleaf shows Peter Sylvester-Bradley at work on Jurassic oysters in his study area at Noon’s Close, Stoughton,
Leicestershire, England, c. 1976.
A Stereo-Atlas of Ostracod Shells
edited by J. Athersuch, D. J. Horne, A. R. Lord, D. J. Siveter,
and J. E. Whittaker
Volume 21, 1994
Part 1 (pp. 1-58); 31st August, 1994
Part 2 (pp. 59-129); 31st December, 1994
Published under the aegis of the British Micropalaeontological Society, London
Stereo-Atlas of Ostracod Shells 21 , iv
Contents
Contents
1 On Trispinatia rusconii (de Garcia & Proserpio); by R.E.L. Schallreuter. i
2 On Moeckowia rava (Sarv); by R.E.L. Schallreuter. 5
3 On Cambria sibirica Neckaja & Ivanova; by M. Williams, D.J. Siveter, I. Hinz-
Schallreuter & L. Melnikova. g
4 On Cambria melnikovae Ivanova; by D.J. Siveter, M. Williams & L. Melnikova. 13
5 On Wimanicharion matthewi (Wiman); by D.J. Siveter, M. Williams & V. Berg-
Madsen. yj
6 On Vestrogothia longispinosa Kozur; by M. Williams, D.J. Siveter, V. Berg-Madsen
& I. Hinz-Schallreuter. 2i
7 On Kuiperiana bathymarina Ayress, Coles & Whatley sp. nov.; by M.A. Ayress,
G.P. Coles & R.C. Whatley. ’ 2?
8 On Parahemingxvayella ginginensis Boomer & Whittaker sp. nov.; by I. Boomer &
J.E. Whittaker. ^
9 On Semicytherura parasella Maybury sp. nov.; by C.A. Maybury. 35
10 On Bathycythere comitatus Wouters sp. nov.; by K. Wouters. 39
11 On Palmoconcha bitruncata (Brady); by K. Wouters. 43
12 On Kuzminaella venusta Tschigova; by H. Groos-Uffenorde & V. Tschigova. 47
13 On Knoxina lecta Coryell & Rogatz; by C.P. Dewey & P. Kohn. 51
14 On Bythocythere bradleyi Athersuch, Horne & Whittaker; by J. Athersuch, D.J.
Horne & J.E. Whittaker. 59
15 On Cytheropteron abyssorum Brady; by V. Passlow & M.A. Ayress. 63
16 On Carinocythereis batei Jain; by A.A.F. Al-Furaih. 7 j
17 On Sagmatocythere paravariolata Maybury sp. nov.; by C.A. Maybury. 75
18 On Pariceratina ubiquita Boomer sp. nov.; by I. Boomer. 79
19 On Chrysocythere buncensis Keen sp. nov.; by M.C. Keen. 87
20 On Exposterocythere margaritata (Krommelbein); by R.C. Whatley, S. Ballent &
C.A. Maybury. pj
21 On Exposterocythere queenslandensis (Krommelbein); by R.C. Whatley, S. Ballent &
C.A. Maybury. ^5
22 On Majungaella ticka (Krommelbein); by R.C. Whatley, S. Ballent & C.A. Maybury. 99
23 On Cypridea sylvesterbradleyi Bate sp. nov.; by R.H. Bate. 103
24 On Theriosynoecum fimbriachela Wakefield; by M.I. Wakefield. 107
25 On Poloniella adamczaki Lundin sp. nov.; by R.F. Lundin. HI
26 On Ploteristes sylvesterbradleyi Siveter gen. et sp. nov.; by D.J. Siveter. 115
On Primitiella minima (Harris); by M. Williams, R.F. Lundin & D.J. Siveter. 119
28 On Garciana jaanussoni (de Garcia & Proserpio); by R.E.L. Schallreuter. 123
29 Index for Volume 21. (1994). 127
Stereo-Atlas of Ostraeod Shells 21 (14) 59-62 (1994) Bythocythere bradleyi (1 of 4)
595.337.14 (119.9) (415 : 162.01 1 .52): 551.351
ON BYTHOCYTHERE BRADLEYI ATHERSUCH, HORNE & WHITTAKER
by John Athersuch, David J. Horne & John E. Whittaker
(StrataData Ltd., Ottershaw; School of Earth Sciences, University of Greenwich, Chatham & Department of
Palaeontology, The Natural History Museum, London, England)
Bythocythere bradleyi Athersuch, Horne & Whittaker, 1983
1947 Bythocythere turgida Sars; P.C. Sylvester-Bradley, Ann. Mag. nat. Hist., ser. 11, 14, 721, text-fig. 2 ( non Sars, 1866).
1983 Bythocythere bradleyi sp. nov., J. Athersuch, D.J. Horne & J.E. Whittaker, J. micropalaeontol., 2, 74, pi. 1, figs. 7-10, text-figs.
4c-e, 5e.
Holotype:
Type locality:
Figured specimens:
Diagnosis:
The Natural History Museum, London [BMNH] no. 1982.355, 9 carapace, subsequently split into two
valves.
[Paratype: BMNH no. 1982.356, cr carapace (subsequently split into two valves) and appendages].
Valentia, SW Ireland (long. 10°20'W, lat. 51°55'N). Recent marine, sublittoral.
The Natural History Museum. London [BMNH] nos. 1982.356 (paratype, o' LV: PI. 21, 60, fig. 1; PI. 21,
62, fig. 1; Text-fig. 1), 1982.355 (holotype, 9 LV & RV: PI. 21, 60, figs. 2, 3; PI. 21, 62, figs. 2, 3). Both
from the type locality. Ex A.M. Norman Collection, BMNH slide no. 1900.3.6.380, labelled “5. turgida
Sars”.
A large species of Bythocythere (800-900 pm long) with strongly inflated carapace and prominent alar
expansions slightly overhanging the ventral margin. Greatest width a little behind mid-length. Compressed
posteroventral marginal area relatively narrow. Posterior margin denticulate. Dorsomedian sulcus absent.
Male copulatory appendage with a relatively small, subtriangular distal process.
Explanation of Plate 21, 60
Fig. 1, o’ LV, ext. lat. (paratype, 1982.356, 870/rm long). Figs. 2, 3, 9 LV and RV, ext. lats. (holotype, 1982.355, 840pm long).
Scale A (250/mi; x80), figs. 1-3.
Stereo-Atlas of Ostraeod Shells 21, 61 Bythocythere bradleyi (3 of 4)
Remarks: This species was named in honour of Peter Sylvester-Bradley, founder of the Stereo-Atlas of Ostraeod
Shells. B. bradleyi closely resembles the type-species of Bythocythere, B. turgida Sars, 1866 ( Forh .
VidenskSelsk. Krist. 1865, 84), with which it was formerly confused by various authors, including
Sylvester-Bradley himself (1947, op. cit.). The alar expansions of B. turgida are characteristically trun-
cated in dorsal view, whilst those of B. bradleyi are rounded; the two species are readily distinguished by
the shapes of their male copulatory appendages. B. bradleyi is also similar to B. robinsoni Athersuch,
Horne & Whittaker, 1983 (op. cit., 74, pi. 1, figs. 1-6, text-figs. 4f-h, 5d) but the latter is more elongate
and its alar expansions do not overhang the ventral margin. Three other Bythocythere species live in
British waters: B. bradyi Sars, 1926 (An Account of the Crustacea of Norway. Volume 9, Ostracoda. Parts
13, 14, Cytheridae (continued), Bergen, 236, pi. 108, fig. 2), B. zetlandica Athersuch Horne & Whittaker,
1983 (op. cit.) (see D.J. Horne, Stereo-Atlas Ostraeod Shells, 14, 69-72, 1987) and B. intermedia Elofson,
1938 (see D.J. Horne, ibid. , 14, 65-68, 1987); all are smaller, more elongate and less inflated than B.
bradleyi.
Distribution: A marine sublittoral species found around British coasts. Former records of B. turgida Sars from British
waters may be referred to either B. bradleyi or B. robinsoni (see Remarks).
Text-fig. 1. Male copulatory appendage of B. bradleyi (1982.356). Scale bar = 100//m.
Explanation of Plate 21, 62
Fig. 1, O' LV ext. dors, (paratype, 1982.356). Figs. 2, 3, LV, int. lat. and detail of muse, sc., respectively (holotype, 1982.355).
Scale A (250 gm; x80), figs. 1, 2; scale B (50 gm; x375), fig. 3.
Stereo-Atlas of Ostracod Shells 21, 62
Bythocythere bradleyi (4 of 4)
Stereo-Atlas of Ostracod Shells 21 (15) 63-70 (1994) Cytheropteron abyssorum (1 of 8)
595.337.14 (119.9 + 119.1) (267.7 : 163.134.43 + 163.141.39): 551.353
ON CYTHEROPTERON ABYSSORUM BRADY
by Victoria Passlow & Michael A. Ayress
(Department of Geology, The Australian National University, Canberra)
Cytheropteron abyssorum Brady, 1880
1880 Cytheropteron abyssorum sp. nov., G.S. Brady, Rep. scient. Results Voy. Challenger, (Zool.), 1, 138, pi. 34, figs. 3a-d.
1976 Cytheropteron abyssorum Brady; H.S. Puri & N.C. Hulings, Bull. Br. Mus. nat. Hist., (Zool.), 29, 305, pi. 23, fig. 8.
non 1967 Cytheropteron abyssorum Brady; J.W. Neale, Scient. Rep. Br. Antarct. Surv., 58, 24, figs. 8a-d, i-1.
non 1988 Cytheropteron abyssorum Brady; R. Whatley, J. Chadwick, D. Coxill & N. Toy, Revta esp. Micropaleont . , 20, 181, pi. 3,
figs. 5-7.
Holotype:
Type locality:
Figured specimens:
The Natural History Museum, London [BMNH] no. 81.5.49; juvenile carapace.
H.M.S. Challenger station 160, South Australian Basin, lat. 42°42'S, long. 134°10'E; Recent, 2600
fathoms (4755 m) water depth.
The Natural History Museum, London [BMNH] no. 81.5.49 (holotype, juv. car.: PI. 21, 64, fig.
1; PI. 21, 66, fig. 1), from the type locality. National Museum of Victoria, Australia nos. P 197943
(adult RV: PI. 21, 68, figs. 1, 2, 4; PI. 21, 70, fig. 3), from interval 289-290 cm of Eltanin Core
E55-6 (lat. 38°51.2'S, long. 141°03.8'E); P 197944 (adult LV: PI. 21, 66, fig. 3; PI. 21, 70, figs. 1,
2), from interval 294-295 cm of Core E55-6; P 197945 (adult LV: PI. 21, 68, fig. 3; PI. 21, 70,
fig. 4), from interval 299-300 cm of Core E55-6; P 197954 (juv. RV: PI. 21, 64, fig. 3; PI. 21,
Explanation of Plate 21, 64
Fig. 1, juv. car., vent, (holotype, 81.5.49, 470/ym long). Fig. 2, juv. LV, vent. (P 197955, 310/ym long). Fig. 3, juv. RV, vent.
(P 197954, 350 pm long).
Scale A (100 //m; x200), fig. 1; scale B (100 pm; x200), fig. 2; scale C (100 //m; x 170), fig. 3.
Stereo-Atlas of Ostracod Shells 21, 65 Cytheropteron abyssorum (2 of 8)
66, fig. 2), from interval 309-310 cm of Core E55-6; P 197955 Guv. LV: PI. 21, 64, fig. 2), from
interval 319-320 of Core E55-6. The Eltanin core material is Late Pleistocene in age (oxygen
isotope Stage 5).
Diagnosis: A moderately-sized species of Cytheropteron, sub-rhomboidal in lateral view. Alar process very
robust, laterally directed, sinuous in lateral view, spinose apically; extends forward of muscle scar
node with abrupt anterior termination. Deep dorsal alar pit present, as well as constriction in front
of muscle scar node. External surface ornament grades from posterior reticulation to fine puncta-
tion anteriorly; anterior quarter and caudal process smooth. Prominent inverted L-shaped ridge
developed below posterior hinge ear, linking with reticulation. Ventral surface bears longitudinal
ridges, one thickening ridge linking posteriorly with reticulation. Small spine present halfway along
trailing edge of alar process.
Remarks: The reverse of the type slide in the Natural History Museum, London contains a note by Brady
himself . . . “Be careful in recovering from slide. This is the only specimen and is already broken”.
The specimen is therefore strictly the holotype, not a lectotype as designated by Puri & Hulings
(1976, op. cit.). This specimen is re-illustrated here (PI. 21, 64, fig. 1; PI. 21, 66, fig. 1), together
with material found close to the type locality (off South Australia), which we believe to be con-
specific. Our aim is to remove some of the taxonomic confusion which has been the consequence
of the fact that Brady’s specimen is an incomplete juvenile carapace. Following a study of both
adults and instars of the 26 species of Cytheropteron found by us in core and grab samples from
off S Australia, the one figured here best fits C. abyssorum. Similarities include overall carapace
outline, ornamentation, thickness of the alar process and, in particular, the ventral ridge pattern.
Strong similarity in the ventral ridge pattern can be seen between Brady’s specimen and both
juvenile and adult material from our own study (cf. PI. 21, 64, fig. 1 with PI. 21, 64, figs. 2, 3 and
Explanation of Plate 21, 66
Figs. 1 , juv. car., rt. lat. (holotype, 81.5.49, 470 pm long). Fig. 2, juv. RV, ext. lat. (P 197954, 340 pm long). Fig. 3, adult LV, int. muse,
sc. (P 197944, 440 pm long).
Scale A (100 /^m; x 130), fig. 1; scale B (100 pm; x 180), fig. 2; scale C (50 pm\ x270), fig. 3.
Cytheropteron abyssorum (2 of 8)
Stereo-Atlas of Ostracod Shells 21, 66
Stereo-Atlas of Ostracod Shells 21, 64
Cytheropteron abyssorum (4 of 8)
Stereo-Atlas of Ostracod Shells 21, 67 Cytheropteron abyssorum (5 of 8)
with PI. 21, 68, fig. 2). The anterior constriction in the alar process, strongly expressed in adults,
is not clearly shown in Brady’s specimen because of a combination of its poor preservation and
juvenile nature. There is also some discrepancy in the sizes of juvenile specimens, Brady’s holotype
being larger than the later stage juveniles illustrated here and yet its ornament is unexpectedly weak
for its size. We attribute this to the considerable size variation present in this species, as evidenced
by the wide range displayed in adults (compare PI. 21, 70, fig. 1 (P 197944), 440 pm long, with PI.
21, 68, fig. 3 (P 197945), 530 jum long). Small adults have slightly finer ornamentation and
calcification is less, especially of the inner lamella.
Other previously described species might be confused with C. abyssorum. In shape and
ornamentation it is closest to C. porterae Whatley & Coles, 1987 ( Revta esp. Micropaleont., 19, 64)
especially in the RV. However, the alar process in the latter lacks the abrupt anterior termination
and is much more ventrally directed. Also, the ornamentation and postero-dorsal ridge are stronger
in C. abyssorum. C. trifossata Whatley & Coles, 1987 (Ibid., 67) similarly develops a robust alar
process, although it lacks the anterior constriction and abrupt termination present in C. abyssorum.
Juveniles of C. trifossata are close to those of C. abyssorum, but can be distinguished on the basis
of ornamentation of the ventral surface.
C. abyssorum Brady is a much cited species but most previous records from Antarctic and
subAntarctic waters are likely to be incorrect. Neale’s (1967, op. cit.) Antarctic specimens,
examined by us in the BMNH, belong to a separate species, as do those of Whatley et al. (1988, op.
cit.) from the Falkland Islands. Our own collections of Antarctic material also confirm the absence
of C. abyssorum from this area. These observations lead us to doubt the identification of
Explanation of Plate 21, 68
Figs. 1, 2, 4, adult RV (P 197943, 530 pm long): fig. 1, ext. lat.; fig. 2, vent.; fig. 4, ant. Fig. 3, adult LV, ext. lat. (P 197945,
530 pm long).
Scale A (100 pm; x 110), figs. 1, 2; scale B (100 pm; x 120), fig. 2; scale C (100 /ym; x 130), fig. 4.
Stereo- Atlas of Ostracod Shells 21, 69 Cytheropteron abyssorum (8 of 8)
C. abyssorum in Antarctica by Chapman, 1919 (Scient. Rep. Australas. Antarct. Exped., (C: Zool.
and Bot.), 5(7), 35). Similarly, Chapman’s record off Funafuti (1910, J. Linn. Soc. (Zool.), 30,
437) is doubtful on geographical considerations. His records from the east and west coasts of Tas-
mania (1915, Fish. Zool. Results Endeavour, 3(1), 37; 1919, Ibid. ) may be correct, but despite our
searches through collections in the BMNH and the National Museum of Victoria (Australia), we
have been unable to locate his specimens to substantiate this claim.
Distribution: Apparently confined to the deep-sea of the South Australian Basin in water depths between 2346
and 4755 metres. In our material the species is rare, occurring only in Eltanin Core E55-6 (2346 m)
and in grab sample 161G from Franklin Cruise 2/1991 (2450 m). Brady’s specimen from red clay
at a depth of 4755 meters has probably been transported downslope.
Acknowledgements: We are grateful to Dr John Whittaker (BMNH) for providing us with the photographs of Brady’s
holotype. The Electron Microsope Unit (ANU) is thanked for their assistance and use of their scan-
ning electron microscopes.
Explanation of Plate 21, 70
Figs. 1, 2, adult LV (P 197944, 440 gm long): fig. 1, ext. lat.; fig. 2, int. lat. Fig. 3, adult RV, dors. (P 197943, 530/ym long).
Fig. 4, adult LV, int. lat. (P 197945, 530/ym long).
Scale A (100 gm; x 1 10), figs. 1, 3; scale B (100 /ym; x 120); scale C (100 /ym; x 1 15), fig. 4.
Cytheropteron abyssorum (6 of 8)
Stereo-Atlas of Ostracod Shells 21, 70
Cytheropteron abyssorum (8 of 8)
Stereo-Atlas of Ostracod Shells 21, 68
Stereo-Atlas of Ostracod Shells 21 (16) 71-74 (1994) Carinocythereis batei (1 of 4)
595.337.14 (119.9) (53 : 161.050.26): 551.351
ON CARINOCYTHEREIS BATEI JAIN
by Ali A. F. Al-Furaih
(King Saud University, Riyadh, Saudi Arabia)
Carinocythereis batei Jain, 1978
1971 Genus A sp., R.H. Bate, Bull. Cent. Rech. Pau, suppl. 5, 246, 248, 250, 252, pi. 3, figs. 10, 20, 30.
1978 Carinocythereis (Carinocythereis) batei sp. nov., S.P. Jain, Bull. Indian Geologists Ass., 11, 108, fig. 31.1-5, 6H.
1982 Carinocythereis sp., S.K. Al-Abdul-Razzaq, W. Shublaq & Z. Al-Sheikh, Mar. Geol., 47, 62, fig. 8.
Holotype:
Type locality:
Figured specimens:
Diagnosis:
Museum, Centre of Advanced Study in Geology, Panjab University, Chandigarh, India, no.
CASGMF 1690; 9 carapace.
[Paratypes, nos. CASGMF 1691-1694].
Mandvi beach, W coast of India, approx, lat. 22°45'N, long. 69°40'E; Recent, marine.
King Saud University, Riyadh, coll. nos. KSU.G.OS.250 (c r RV: PI. 21, 72, fig. 1), KSU.G.OS.251
(9 LV: PI. 21, 72, fig. 2), KSU.G.OS.252 Guv. LV: PI. 21, 72, fig. 3), KSU.G.OS.253 (9 LV: PI.
21, 74, fig. 1), KSU.G.OS.254 (9 RV: PI. 21, 74, figs. 2, 3). All specimens are from the Jazirat Tarut
coast of the Arabian Gulf, approx, lat. 26°35'N, long. 50°05'E; Recent, marine.
An elongate subrectangular Carinocythereis, with surface ornamentation consisting of a fine reticu-
lation in between four distinct longitudinal ridges. Subcentral tubercle indistinct, eye spot low but
distinct. Sexual dimorphism apparent.
Explanation of Plate 21, 72
Fig. 1, o* RV, ext. lat. (KSU.G.OS.250, 760 pm long). Fig. 2, 9 LV, ext. lat. (KSU.G.OS.251, 740 gm long). Fig. 3, juv. LV, ext. lat.
(KSU.G.OS.252, 560 pm long).
Scale A (200 /im; x 77), figs. 1, 2; scale B (200 gm; X 100), fig. 3.
Stereo-Atlas of Ostracod Shells 21, 73 Carinocythereis batei (3 of 4)
Remarks: I have selected this species to celebrate the 21st Anniversary of the founding of the Stereo-Atlas of
Ostracod Shells by my mentor, the late Professor P.C. Sylvester-Bradley. It is appropriate that it is
named after Dr R.H. Bate, as he was his very first Ph.D. student; I was one of his last. It is also
noted that the species was first recorded in the Abu Dhabi lagoon in the Arabian Gulf by Bate
(1971), thus bringing a special regional flavour which the late Professor would have appreciated.
It was referred to the genus Carinocythereis by Jain (1978). However, since it lacks true ponticu-
late carinae (see Athersuch & Whittaker, Stereo-Atlas Ostracod Shells, 14, 97-102, 1987) the generic
assignment is uncertain and awaits a thorough revision of the group.
Distribution: Previous records are from the Abu Dhabi lagoon, Arabian Gulf (Bate, op. cit.), Sulaibikhat Bay,
Kuwait (Abdul-Razzaq et al., op. cit.) and the west coast of India (Jain, op. cit.). I have found it
in many localities on the eastern coast of Saudi Arabia.
Explanation of Plate 21, 74
Fig. 1 , 9 LV, int. lat. (KSU.G.OS.253, 730/mi long). Figs. 2, 3, 9 RV (KSU.G.OS.254, 730 gm long): fig. 2, int. lat.; fig. 3, int. muse. sc.
Scale A (200 ^m; x90), figs. 1, 2; scale B (25 gm; x495), fig. 3.
Stereo-Atlas of Ostracod Shells 21, 72
Carinocythereis batei (2 of 4)
Stereo-Atlas of Ostracod Shells 21, 74
Carinocythereis batei (4 of 4)
Stereo-Atlas of Ostracod Shells 21 (17) 75-78 (1994) Sagmatocythere paravariolata (1 of 4)
595.337.14 (118.22) (420: 162.006.50:551.35
ON SAGMATOCYTHERE PARAVARIOLATA MAYBURY sp. nov.
by Caroline A. Maybury
(Institute of Earth Studies, University of Wales, Aberystwyth, U.K.)
Sagmatocythere paravariolata sp. nov.
1989 Sagmatocythere variolata (Brady); R.C. Whatley & C. Maybury in J. Fourniguet, F. Trautmann, J.-P. Margerel, R.C. Whatley,
C. Maybury & M.T. Morzadec-Kerfourn, Geol. Fr., 1989(1-2), 72 (list) ( non Loxoconcha variolata Brady, 1878).
Holotype:
Type locality:
Derivation of name:
Figured specimens:
The Natural History Museum, London [BMNH] no. OS 14642; 9 LV.
[Paratypes nos. OS 14643-OS 14646].
Sample no. 29, Vicarage Pit, St. Erth, Cornwall, England (5°26'W, 50°10'N; Nat. Grid Ref.
SW 556352); Upper Pliocene.
Latin referring to the similarity of the new species to Sagmatocythere variolata (Brady, 1878)
{Trans. Zool. Soc. Lond., 10, 400, pi. 63, figs. 4a-d).
The Natural History Museum, London [BMNH] nos. OS 14642 (holotype, 9 LV: PI. 21, 76, fig.
1), OS 14643 (paratype, 9 RV: PI. 21, 76, fig. 2), OS 14644 (paratype, o* LV: PI. 21, 76, fig. 3),
OS 14645 (paratype, cr RV: PI. 21, 78, fig. 1), OS 14646 (paratype, 9 RV: PI. 21, 78, figs. 2-4).
All paratypes from the type locality and horizon, but OS 14643 is from sample no. 29, OS 14644
is from sample no. 1 and OS 14645 and OS 14646 are from sample no. 28. See C.A. Maybury,
Taxonomy, Palaeoecology and Biostratigraphy of Pliocene Benthonic Ostracoda from St. Erth
and NW France, unpub. Ph.D. thesis, Univ. Wales, 1, 3-6, 1985 for further sample details.
Explanation of Plate 21, 76
Fig. 1, 9 LV, ext. lat. (holotype, OS 14642, 400 /rm long). Fig. 2, 9 RV, ext. lat. (paratype, OS 14643, 400 pm long). Fig. 3, cr LV,
ext. lat. (paratype, OS 14644, 460 /mi long).
Scale A (100 pm; X 138), figs. 1-3.
Stereo-Atlas of Ostracod Shells 21, 77
Sagmatocythere paravariolata (3 of 4)
Diagnosis: A small, dimorphic, subrhomboidal Sagmatocythere with rounded anterior and posterior margins;
dorsal margin oblique to slightly arcuate in the female, straight in the male, and ventral margin
convex and overhung by the posteroventral acutely pointed alar protuberance. Carapace sub-
hexagonal in dorsal aspect. Ornament a reticulum comprising thick, rounded muri and
comparatively shallow, irregularly-shaped fossae. Normal pore canals intramural, some with
conuli. Inner lamella moderately calcified with flange, selvage and list well defined.
Remarks: Brady’s Miocene specimens of Sagmatocythere variolata from the Bryozoan Sands of Anvers,
Belgium loaned to me by the Hancock Museum and kindly photographed on Brady’s original slide
in the Environmental Chamber of the ISI ABT55 electron microscope by John Whittaker, have
allowed me to compare the new species with Brady’s material. The former has a much coarser and
irregular ornament than S. variolata with prominent pore conuli and massively constructed muri.
By contrast, the ornament in Brady’s species is delicate with narrow ridge-like and comparatively
large, polygonal muri with the apex of the alar protuberance almost acanthine.
Distribution: Upper Pliocene deposits of St. Erth, Cornwall, England (sample nos. 1-4, 7, 1 1-12, 14, 16, 18, 21,
23, 25-29) and Upper Pliocene (Redonian) deposits of Palluau II (670 cm) and Saint-Jean-la-
Poterie, NW France (see C. Maybury {op. cit.) and J.-P. Margerel, Les Foraminiferes du
Redonien. Systematique, Repartition stratigraphique, Paleoecologie, Nantes, 1, 8-26, 1968 for
details of the British and French samples respectively).
Explanation of Plate 21, 78
Fig. 1, cr RV, ext. lat. (paratype, OS 14645, 440 pm long). Figs. 2-4, 9 RV (paratype, OS 14646, 420 //m long): fig. 2, int. lat.; fig. 3,
ant. hinge element; fig. 4, post, hinge element.
Scale A (100 pm\ X 138), figs. 1, 2; scale B (25 /rm; X 435), figs. 3, 4.
Stereo-Atlas of Ostracod Shells 21, 76
Sagmatocythere paravariolata (2 of 4)
Stereo-Atlas of Ostracod Shells 21, 78
Sagmatocythere paravariolata (4 of 4)
Stereo-Atlas of Ostracod Shells 21 (18) 79-86 (1994) Pariceratina ubiquita (1 of 8)
595.337.14 (118.13 + 118.14 + 118.15) (265 : 162. 180. 18): 551.352 + 552.52
ON PARICERATINA UBIQUITA BOOMER sp. nov.
by Ian Boomer
(Institute of Earth Studies, University of Wales, Aberystwyth, U.K.)
Pariceratina ubiquita sp. nov.
Holotype:
Type locality:
Derivation of name:
Figured specimens:
The Natural History Museum, London [BMNH] no. OS 14654; adult RV.
[Paratypes, nos. OS 14653, 14655-14662],
Allison Guyot, Central Pacific Ocean Drilling Project Leg 143, Hole 865B (long. 179°33.33'W. lat.
18°26.41'N); middle Eocene.
With reference to the common occurrence of this species in Cainozoic deep sea samples from the
Central and SW Pacific Ocean.
The Natural History Museum, London [BMNH] nos. OS 14653 (paratype, adult LV: PI. 21, 80,
fig. 1), OS 14654 (holotype, adult RV: PI. 21, 80, figs. 2, 3), OS 14655 (paratype, adult RV: PI. 21,
80, fig. 4), OS 14656 (paratype, adult LV: PI. 21, 82, fig. 1), OS 14657 (paratype, adult LV: PI. 21,
82, fig. 2), OS 14658 (paratype, adult RV: PI. 21, 82, fig. 3), OS 14659 (paratype, adult LV: PI. 21,
82, fig. 4), OS 14660 (paratype, adult RV: PI. 21, 84, figs. 1-4), OS 14661 (paratype, adult LV: PI.
21, 86, figs. 1-4), OS 14662 (paratype, adult LV: Text-fig. 1).
Explanation of Plate 21, 80
Fig. 1, adult LV, ext. lat. (paratype, OS 14653, 800 long). Figs. 2, 3, adult RV (holotype, OS 14654, 780/rm long): fig. 1, dor.; fig.
2, ext. lat. Fig. 4, adult RV, ext. lat. (paratype, OS 14655, 150 qm long).
Scale A (100 gm; x74), figs. 1, 2; scale B (100 /rm; x70), figs. 3, 4.
Stereo-Atlas of Ostracod Shells 21, 81 Pariceratina ubiquita (3 of 8)
All specimens from type locality. OS 14654 and OS 14662 from ODP sample 143-865B-4H-5,
100-106 cm, middle Eocene. OS 14653 from 143-865B-2H-5, 100-106 cm, lower Oligocene.
OS 14655 from 143-865B-7H-5, 85-91 cm, middle Eocene. OS 14656 from 143-865B-3H-5,
100-106 cm, upper Eocene. OS 14657 from 143-865B-14H-CC, 0-8 cm, upper Paleocene.
OS 14658 and OS 14659 from 143-865B-14H-5, 100-106 cm, upper Palaeocene. OS 14660 from
143-865B-1 1H-CC, 0-8 cm, middle Eocene.
Diagnosis: A blind species of Pariceratina with an elongate quadrate carapace, dorsal margin straight to
weakly concave, ventral margin sinuous. Anterior and posterior margins denticulate, bearing
marginal ribs. Carapace has three marginal spines, the posterior of which is developed into a sharp
projection, the middle spine being rounded and least developed, while the anterior spine is short
and conical. External surfaces ornamented by fine open reticulation containing many small con-
junctive and disjunctive spines.
Remarks: All the type specimens are from the same locality, ranging in age from upper Palaeocene to lower
Oligocene. Elsewhere, the species has been recorded from the lower and middle Eocene of DSDP
sites 206, 207 and 277 from the Lord Howe Rise (Millson, K. J., 1987. The Palaeobiology of Paleo-
gene Ostracoda from the Deep Sea Drilling Project in the South West Pacific. Unpublished Ph.D.
Thesis, University of Wales), the middle Eocene to upper Oligocene of DSDP sites 171 and 144,
Horizon Guyot, and the lower to upper Miocene of DSDP Site 200, Ita Mai Tai Guyot (J.
Larwood, pers. comm.). So far, the species has only been recorded in the Pacific Ocean. Guernet,
1982 (Guernet, C., Revue Micropaleont., 25, pi. 5, figs. 6, 7) figured a very similar species,
Explanation of Plate 21, 82
Fig. 1, adult LV, ext. lat. (paratype, OS 14656, 800 /rm long). Fig. 2, adult LV, ext. lat. (paratype, OS 14657, 780 gm long). Fig. 3, adult
RV, ext. lat. (paratype, OS 14658, 800 qm long). Fig. 4, adult LV, ext. lat. (paratype, OS 14659, 780 gm long).
Scale A (100 pm; x72), figs. 1-4.
Stereo-Atlas of Ostracod Shells 21, 80
Pariceratina ubiquita (2 of 8)
mmm
JlSIfc
mm
'* ■' ; J
wssmum
;pKfej£«paa
Stereo-Atlas of Ostracod Shells 21, 82
Pariceratina ubiquita (4 of 8)
.At'
ts&atmm
i^vfcSW*,
'V'-'V;
HK&
SPP^^
Stereo-Atlas of Ostracod Shells 21, 83 Pariceratina ubiquita (5 of 8)
Bythoceratina sp. 2, from lower Palaeocene to middle Eocene sediments of DSDP Site 44 in the
Bahamas Basin, N Atlantic. That species, although poorly preserved, shows what may be four
lateral spines. P. ubiquita possesses a slight swelling in front of the anterior spine in some valves
which may be analogous to the fourth spine of the Atlantic specimens.
There is some morphological variation in P. ubiquita through time. The stratigraphically older
specimens (see PI. 21, 82, figs. 2-4) tend to have more pronounced dorsal and ventral concavities;
they also appear to have more strongly pronounced antero- and postero-marginal ribs. Further-
more, these older specimens tend to display a coarser pattern of reticulation and stronger develop-
ment of conjunctive spines, which are most notably developed along the dorsal margin. All the
figured specimens are considered to belong to a single, evolving, species.
There is some degree of variation in carapace outline in the upper Palaeocene samples which
suggests the presence of sexual dimorphism (compare PI. 21, 82, fig. 2 with PI. 21, 82, fig. 4).
Griindel & Kozur (1972, Mber. dt. Akad. Wiss. Berl., 13 (for 1971), 907-937) erected Paricera-
tina as a subgenus of Nemoceratina Griindel & Kozur, 1971 {op. cit.), to accommodate a group of
species which were identified by the presence of two to three, equally developed, thorn-like tuber-
cles on the lateral surfaces. Nemoceratina (Pariceratina) tricuspidata (Jones & Hinde, 1890) was
designated type species. They also noted the presence of a marginal rib which is strongly developed
anteriorly but they also commented that antero- and postero-marginal denticles were absent. The
present author believes that the generic diagnosis should be now emended to include these features.
Griindel & Kozur described the hinge as possessing a weakly locellate groove in the right valve. The
preservation of my material does not allow for a more accurate assessment of the hinge, however
P. ubiquita has a simple straight hinge with elongate, very weak terminal elements in the right
valve.
Explanation of Plate 21, 84
Fig. 1-4, adult RV (paratype, OS 14660, 745 pm long): fig. 1, ext. lat.; fig. 2, ant. hinge; fig. 3, int. lat.; fig. 4, post, hinge.
Scale A (100 pm; x73), figs. 1, 3; scale B (25 pm; x540), figs. 2, 4.
Stereo-Atlas of Ostracod Shells 21, 85 Pariceratina ubiquita (7 of 8)
Neale (1975, Spec. Pap. Palaeont., 16, 14) erected the genus Cretaceratina based on a species,
C. trispinosa Neale (1975, op. cit., 14, 15, pi. 9, figs, la-f, 2a-f) from the Santonian of Western
Australia. Cretaceratina is here considered to be a junior synonym of Pariceratina. P. trispinosa
(Neale) is morphologically very similar to, although somewhat smaller than, the present material
but clearly differs in possessing a strong eye tubercle. This may indicate that the Santonian species
inhabited much shallower water than P. ubiquita (which is sightless), and that descendants of the
former species undertook an ecological shift during the Late Cretaceous.
Pariceratina was subsequently raised to generic level by Dingle (1981, Ann. S. Afr. Mus., 18,
1-181) and he described a new species from the Maastrichtian of South Africa.
Distribution: SW and Central Pacific; upper Palaeocene-upper Miocene.
Text-fig. 1. Pariceratina ubiquita, adult LV, ext. lat. (paratype, OS 14662, 190 pm long) seen in transmitted light, showing distribution
of marginal and normal pore canals. Scale bar = 100 /am.
Explanation of Plate 21, 86
Figs. 1-4, adult LV (paratype, OS 14661, 775 pm long): fig. 1, ext. lat.; fig. 2, post, hinge; fig. 3, int. lat.; fig. 4, ant. hinge.
Scale A (100 /urn; x 73), figs. 1 , 3; scale B (25 //m; x 540), figs. 2,4.
Stereo-Atlas of Ostracod Shells 21, 86
Pariceratina ubiquita (8 of 8)
Stereo-Atlas of Ostracod Shells 21, 84
Pariceratina ubiquita (6 of 8)
Stereo- Atlas of Ostracod Shells 21 (19) 87-90 (1994) Chrysocythere buncensis (1 of 4)
595.337.14 (118.213) (664: 162.014.08): 551.35
ON CHRYSOCYTHERE BUNCENSIS KEEN sp. nov.
by Michael C. Keen
(Department of Geology & Applied Geology, University of Glasgow, Scotland)
Chrysocythere buncensis sp. nov.
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Diagnosis:
Hunterian Museum, University of Glasgow, no. GLAHM 101150; 9 LV.
[Paratypes, nos. GLAHM 101151-101153],
Bullom Series (Miocene, probably Tortonian), Sierra Leone Borehole 9, depth 60-70 feet, near
Hastings, Freetown, Sierra Leone (see Baker, C.D. & Bott, M.P.H., Overseas Geol. Miner.
Resour., 8, 260-278, 1961). Long. 13°06'W, lat. 8°24'N.
After the Bunce River, Sierra Leone.
Hunterian Museum, Glasgow, nos. GLAHM 101150 (holotype, 9 LV: PI. 21, 88, fig. 1),
GLAHM 101151 (paratype, o * RV: PI. 21, 88, fig. 2), GLAHM 101152 (paratype, 9 car.: PI. 21,
88, fig. 3), GLAHM 101153 (paratype, 9 LV: PI. 21, 90, figs. 1-3). All from the type locality and
depth.
A species of Chrysocythere with a straight dorsal margin/carina; longest section of median carina
straight; lacks secondary reticulation.
Explanation of Plate 21, 88
Fig. 1, 9 LV, ext. lat. (holotype, GLAHM 101150, 870/vm long). Fig. 2, o’ RV, ext. lat. (paratype, GLAHM 101151, 890 /rm long). Fig.
3, 9 car. dors, (paratype, GLAHM 101152, 870 /jm long).
Scale A (200 //m; x70), figs. 1, 3; scale B (200 /rm; x65), fig. 2.
Stereo-Atlas of Ostracod Shells 21, 89 Chrysocythere buncensis (3 of 4)
Remarks: This issue of the Stereo-Atlas of Ostracod Shells is both a memorial and a tribute to the late Peter
Sylvester-Bradley, so I have purposely chosen to describe a species which brings back memories of
my old tutor. When the first Cambridge SEM arrived at Glasgow, I had just completed my Ph.D.
thesis and was therefore in a position to supply specimens for trying out the new machine. We
naturally chose ornate specimens. The species described here is not one of them but is a relative of
Chrysocythere cataphracta Ruggieri, 1962, a species described by Peter in the very first issue of the
Stereo-Atlas published 21 years ago (Sylvester-Bradley, P.C. & Ruggieri, G., Ibid., 1, 31-34,
1973). In keeping with his memory, I have used the descriptive terminology he advocated.
This new species is very similar to the type of Chrysocythere, C. cataphracta, which is typical of
the Tortonian of the Mediterranean region. It differs, however, in lateral outline, being more
rectangular in overall appearance; the dorsal margin, formed by the dorsal carina, is almost
straight, especially in the right valve, the ventral margin is less curved and the postero-ventral angle
is less rounded. The ornamentation consists of three prominent ponticulate carinae, the ventral one
of which divides into two about one-third of the way from the anterior; the median carina consists
of 3 straight sections, whereas in the type species the main part forms an even curve (dorsally
convex); an anterior ponticulate carina runs parallel to the anterior margin; cross ridges run
between the carinae, from the sides of the fenestra of the ponticules. Secondary reticulation
between the cross ridges is not really developed; incipient reticulation can be discerned from SEM
photographs, but not with an ordinary binocular microscope. In this respect C. buncensis is more
similar to the type species than to species such as C. paradisus Doruk (1973, Stereo-Atlas Ostracod
Shells, 1, 89-92) which have prominent secondary reticulation. The type species does have secon-
dary reticulation between the dorsal and median carinae, which is lacking in C. buncensis. The
internal details are similar to those of the type species.
Distribution: Known only from the type locality.
Explanation of Plate 21, 90
Figs. 1-3, 9 LV (paratype, GLAHM 101153, 870/rm long): fig. 1, int. lat.; fig. 2, ant. hinge; fig. 3, muse. sc.
Scale A (200 /rm; x68), fig. 1; scale B (25 //m; x385), figs. 2, 3.
Stereo-Atlas of Ostracod Shells 21, 90
Chrysocythere buncensis (4 of 4)
Stereo-Atlas of Ostracod Shells 21, 88
Chrysocythere buncensis (2 of 4)
Stereo-Atlas of Ostracod Shells 21 (20) 91-94 (1994) Exposterocythere margaritata (1 of 4)
595.337.14 (116.313 + 116.331) (943 : 163.142.29): 551.35 + 552.52
ON EXPOSTEROCYTHERE MARGARITATA (KROMMELBEIN)
by Robin C. Whatley1, Sara Ballent2 & Caroline A. Maybury1
(Institute of Earth Studies, University of Wales, Aberystwyth, U.K. 1 & University of La Plata, Argentina2)
Genus EXPOSTEROCYTHERE gen. nov.
Type-species: Majungaella margaritata Krommelbein, 1975
Latin combination, ex + postero. Ex = out; postero = back, behind. Referring to the colloquial expression “outback” for the
interior part of Australia, the type locality of this taxon.
A genus of Progonocytheridae characterized by its subrectangular to subquadrate to subovate shape in lateral view and absence
of a strong ventro-lateral tumidity in most species. Anterior margin broadly rounded with marginal denticles, especially below
mid-height; posterior margin bluntly pointed either at or below mid-height; never “upturned”. Dorsal margin straight, often
over-reached by mid-dorsal swelling of valve, especially in RV; ventral margin wholly or partly obscured by valve tumidity.
Dorsal cardinal angles marked but not conspicuous. Ornament comprising a primary coarse reticulation with an essentially con-
centric orientation. In some species (E. queenslandensis (Krommelbein, 1975) {op. cit. , 462, pi. 2, figs. 4-6) and E. verseyi (Neale,
1975) (J.W. Neale, Spec. Pap. Palaeont., 16, 16-17, pi. 2, fig. 4; pi. 8, fig. 5; pi. 14, fig. 3, text-fig. 2b) vertical muri may coalesce
into vertical ribs anteriorly which parallel the anterior margin. All species with secondary reticulation/punctation, often most
strongly developed around free margins. Normal pore canals numerous; normally occurring on both muri and solae. Calcified
inner lamella wide around all the free margin; widest antero-ventrally. Hinge entomodont and robustly developed. Radial pore
canals, between 15 and 24 anteriorly and 6 and 8 posteriorly. Strongly sexually dimorphic in some species.
The genus is much more rectangular/quadrangular than Majungaella and considerably less tumid. Also, Exposterocythere lacks
the upturned posterior margin of Majungaella. The latter has a reticulate ornament which is tightly and circularly concentric
about mid-point while that of Exposterocythere, which is concentric, is less strongly so and is ovate.
Included within the genus are the following species: Majungaella margaritata, M. queenslandensis, M. verseyi and M. cf. M.
queenslandensis Krommelbein (R.V. Dingle, Ann. S. Afr. Mus., 93(3), 146-147, figs. 17C, 18, 1984).
Derivation of name:
Diagnosis:
Remarks:
Explanation of Plate 21, 92
Fig. 1, O' LV, ext. lat. (holotype, CPC 13861, 1030 pm long). Fig. 2, o’ RV, ext. lat. (paratype, CPC 13862, 1040 pm long). Fig. 3, 9
RV, ext. lat. (paratype, CPC 13863, 900 pm long).
Scale A (200 pm; x60), figs. 1-3.
Stereo-Atlas of Ostracod Shells 21, 93 Exposterocythere margaritata (3 of 4)
Distribution: The genus ranges in age from Middle to Upper Albian of Southern Africa and the Falkland Plateau to the Albian-Cenomanian
of SW Queensland and the Santonian of Western Australia.
Exposterocythere margaritata (Krommelbein, 1975)
1975 Majungaella margaritata sp. nov., K. Krommelbein, Senckenberg. leth., 55, 460-461, pi. 1, figs. 1, 2, text-fig. 1, 2).
1975 Majungaella sp. A, K. Krommelbein, op. cit., 463, pi. 1. fig. 3.
Holotype:
Type locality:
Figured specimens:
Diagnosis:
Remarks:
Distribution:
A ckno wledgement:
BMR (Bureau Mineral Resources) now called AGSO (Australian Geological Survey Organisation), Canberra no. CPC 13861;
crLV.
Borehole Tickalara-1, Great Artesian Basin, SW Queensland, Australia (long. 142°13'E, lat. 28°40'S), 261'5"-262'7'/2" from
surface, Allaru Mudstone, Rolling Downs Group; Albian-Cenomanian.
AGSO nos. CPC 13861 (holotype, ct LV: PI. 21, 92, fig. 1; PI. 21, 94, fig. 1), CPC 13862 (paratype, o- RV: PI. 21, 92, fig. 2;
PI. 21, 94, fig. 2), CPC 13863 (paratype, 9 RV: PI. 21, 92, fig. 3; PI. 21, 94, fig. 3). Paratypes from same borehole as holotype
but from 333'10"-335T0" and 276'3"-277'8!/2" from surface respectively.
A large to very large, subrectangular to subovate species of Exposterocythere. Posterior margin more truncated in LV than in
other species. Dorsal cardinal angles poorly marked in RV. Ornament of very coarse and ovally concentric reticulation and with
only moderate development of ribs parallel to free margin. Secondary reticulae most strongly developed around free margins.
Dorsal margin strongly over-reached postero-dorsally by ornament. Twenty-one anterior radial pore canals and 7 posterior radial
pore canals in holotype. (Krommelbein (op. cit.) states that the species has 20-24 anterior canals and 7-8 posteriorly). Canals con-
centrated below mid-height anteriorly and at posteroventral angle posteriorly. Very narrow anterior vestibulum. Ventral adductor
largest. Entomodont hinge very strongly developed. Strongly sexually dimorphic; female much shorter and less rectangular than
male.
This species comprises both Majungaella margaritata Krommelbein, 1975 which is the male and Majungaella sp. A of the same
author which is obviously the female. This is the most strongly sexually dimorphic species of the genus and, with respect to the
male, the most subrectangular. It also has the coarsest ornament but characteristically it lacks strong ribs parallel to the free
margins, especially anteriorly. In this it differs markedly from E. queenslandensis (Krommelbein) (see R.C. Whatley, S. Ballent
& C.A. Maybury, Stereo-Atlas Ostracod Shells, 21, 95-98, 1994).
The species is known only from the Tickalara Borehole in Queensland, Australia.
We thank Dr. M.A. Ayress (Department of Geology, The Australian National University, Canberra) for photography of
Krommelbein’s material.
Explanation of Plate 21, 94
Fig. 1, O’ LV, int. lat. (holotype, CPC 13861, 1030 pm long). Fig. 2, O’ RV, int. lat. (paratype, CPC 13862, 1040 pm long). Fig. 3, 9
RV, int. lat. (paratype, CPC 13863, 900 pm long).
Scale A (200 gm; x60), figs. 1-3.
Stereo-Atlas of Ostracod Shells 21, 94
Exposterocy there margaritata (4 of 4)
Stereo-Atlas of Ostracod Shells 21, 92
Exposterocythere margaritata (2 of 4)
Stereo-Atlas of Ostracod Shells 21 (21) 95-98 (1994) Exposterocythere queenslandensis (1 of 4)
595.337.14 (116.313 + 1 16.331)(943 : 163. 142.29): 551.35 + 552.52
ON EXPOSTEROCYTHERE QUEENSLANDENSIS (KROMMELBEIN)
by Robin C. Whatley1, Sara Ballent2 & Caroline A. Maybury1
(Institute of Earth Studies, University of Wales, Aberystwyth, U.K. ' & University of La Plata, Argentina1)
Exposterocythere queenslandensis (Krommelbein)
1975 Majungaella queenslandensis sp. nov., K. Krommelbein, Senckenberg. leth., 55, 462-463, pi. 2, figs. 4-6.
1975 Majungaella ? sp. B, K. Krommelbein, op. cit., 463, pi. 2, fig. 7.
Holotype: BMR (Bureau Mineral Resources) now called AGSO (Australian Geological Survey Organisation),
Canberra no. CPC 13864; 9 RV.
Type locality: Borehole Tickalara-1, Great Artesian Basin, SW Queensland, Australia (long. 142°13'E, lat.
28°40'S), 281'2"-284'4" below surface, Allaru Mudstone, Rolling Downs Group; Albian-
Cenomanian.
Figured specimens: AGSO nos. CPC 13864 (holotype, 9 RV: PI. 21, 96, fig. 1; PI. 21, 98, fig. 1), CPC 13865 (para-
type, 9 LV: PI. 21, 96, fig. 2; PI. 21, 98, fig. 2), CPC 13866 (paratype, ct RV: PI. 21, 96, fig. 3;
PI. 21, 98, fig. 3). Paratypes from same borehole as holotype but from 326'6"-338'2" and
281'2"-282'4", respectively.
Explanation of Plate 21, 96
Fig. 1, 9 RV, ext. lat. (holotype, CPC 13864, 970 pm long). Fig. 2, 9 LV, ext. lat. (paratype, CPC 13865, 950 pm long). Fig. 3, o • RV,
int. lat. (paratype, CPC 13866, 1060 pm long).
Scale A (200 /rm; x60), figs. 1-3.
Stereo-Atlas of Ostracod Shells 21, 97
Exposterocythere queenslandensis (3 of 4)
Diagnosis:
Remarks:
Distribution:
A cknowledgement:
A large to very large species of Exposterocythere characterized by the very strong development of
the concentric muri in the anterior region. Dorsal cardinal angles marked to prominent except in
posterior of the female LV. Secondary reticulation strongly developed over entire valve surface.
This species is most similar to Exposterocythere verseyi (Neale, 1975) (J.W. Neale, Spec. Pap.
Palaeont., 16, 16-17, pi. 2, fig. 4; pi. 8, fig. 5; pi. 14, fig. 3, text-fig. 2b) from the Santonian of
W Australia but differs in the shape of the female, which is much more postero-ventrally acuminate
than in E. queenslandensis. E. margaritata (Krommelbein 1975) (op. cit., 460-461, pi. 1, figs. 1-2,
text-figs. 1-2 and see also R.C. Whatley, S. Ballent & C.A. Maybury, Stereo-Atlas Ostracod Shells,
21, 91-94, 1994) is more subrectangular to subquadrate, lacks the strong concentric ribs anteriorly
in the LV and has much coarser ornament. E. cf. E. queenslandensis Krommelbein (R.V. Dingle,
Ann. S. Afr. Mus., 93(3), 146-147, figs. 17C, 18, 1984) is similar but probably belongs to another
species and with only a single fragment known, one cannot be certain. E. sp. B (Krommelbein,
1975) (op. cit.) is probably a juvenile of this species.
Known only from the Tickalara Borehole, Queensland, Australia.
We thank Dr. M.A. Ayress (Department of Geology, The Australian National University,
Canberra) for photography of Krommelbein’s material.
Explanation of Plate 21, 98
Fig. 1, 9 RV, int. lat. (holotype, CPC 13864, 970//m long). Fig. 2, 9 LV, int. lat. (paratype, CPC 13865, 950,um long). Fig. 3, cr RV,
int. lat. (paratype, CPC 13866, 1060 pm long).
Scale A (200 /rm; x60), figs. 1-3.
Exposterocythere queenslandensis (2 of 4)
Stereo- Atias of Ostracod Shells 21, 98
Exposterocythere queenslandensis (4 of 4)
Stereo-Atlas of Ostracod Shells 21, 96
Stereo-Atlas of Ostracod Shells 21 (22) 99-102 (1994) Majungaella ticka (1 of 4)
595.337.14 (116.313 + 116.331) (943 : 163.142.29): 551.35 + 552.52
ON MAJUNGAELLA TICKA (KROMMELBEIN)
by Robin C. Whatley1, Sara Ballent2 & Caroline A. Maybury1
(Institute of Earth Studies, University of Wales, Aberystwyth, U.K.1 & University of La Plata, Argentina 2)
Majungaella ticka (Krommelbein, 1975)
1975 Tickalaracythere ticka gen. et sp. nov., K. Krommelbein, Senkenberg. leth., 55, 465, pi. 3, figs. 10-11, text-figs. 3-4.
Ho l o type:
Type locality:
Figured specimens:
Diagnosis:
BMR (Bureau Mineral Resources) now called AGSO (Australian Geological Survey Organisation),
Canberra no. CPC 13868; 9 RV.
Borehole Tickalara-1, Great Artesian Basin, SW Queensland, Australia (long. 142° 13 'E, lat. 28°40'S),
268 '2 Vi "-269' below surface, Allaru Mudstone, Rolling Downs Group; Albian-Cenomanian.
AGSO nos. CPC 13868 (holotype, 9 RV: PI. 21, 100, fig. 1; PI. 21, 102, fig. 1), CPC 13869 (para-
type, 9 LV: PI. 21, 100, fig. 2; PI. 21, 102, fig. 2). Paratype from same borehole as holotype but
from a different depth, viz. 281'2"-282'9".
A large to very large species of Majungaella with subtriangular outline. Anterior margin very
broadly but asymmetrically rounded; posterior margin strongly upturned with sub-dorsal apex and
very long, convex postero-dorsal slope. Dorsal margin sloping strongly to the posterior, overhung
in RV by ornament mid-dorsally. Ventral margin obscured by considerable valve tumidity. In dorsal
view, medianly inflated and anteriorly compressed. Coarse concentric ornament with muri parallel
to valve margin and increasing in strength towards the periphery. Secondary reticulation poorly
developed. Inner lamella wide anteriorly; 26 curved and distally expanded anterior and 7 posterior
radial pore canals. Avestibulate, hinge entomodont and robust.
Explanation of Plate 21, 100
Fig. 1, 9 RV, ext. lat. (holotype, CPC 13868, 1170 pm long); Fig. 2, 9 LV, ext. lat. (paratype, CPC 13869, 920 pm long).
Scale A (200 //m; x80), figs. 1-2.
Stereo-Atlas of Ostracod Shells 21, 101 Majungaella ticka (3 of 4)
Remarks: This species, despite its inclusion by Krommelbein ( op . cit.) in the Cytherideinae Sars, 1925 (G.O.
Sars, An Account of the Crustacea of Norway, Volume 9, Ostracoda, Bergen Museum, 152) with
its entomodont hingement (entomodont-archidont of Krommelbein) shape, muscle scars and radial
pore canals, is a member of the Progonocytheridae Sylvester-Bradley, 1948 (P.C. Sylvester-Bradley,
Geol. Mag., 85, 189).
Krommelbein erected Tickalaracythere on the basis of its larger number of radial pore canals and
more triangular shape, to distinguish it from Majungaella Grekoff, 1963 (N. Grekoff, Revue Inst,
fr. Petrole, 18, 1742-1743). We agree with Bate, 1975 (R.H. Bate, Bull. Br. Mus. nat. Hist. (Geol.),
26, 180-181), that Majungaella demonstrates with time an evolutionary augmentation in its anterior
radial pore canals and given that several other species of the genus have a similar triangular outline,
it is safe to subsume Tickalaracythere within Majungaella. Krommelbein recorded two species of
Tickalaracythere from the Tickalara Borehole. The other, T. scheibnerovae Krommelbein {op. cit.,
467-468, pi. 4, figs. 12-13, text-figs. 5-6) is rather larger, does not have the dorsal margin obscured
in the RV and is more strongly secondarily reticulate/punctate. This species may also be referred to
Majungaella. Krommelbein {Proc. 5th African Colloq. Micropal., 539-551, 1976) mentions another
Tickalaracythere sp. from the Campanian-Maastrichtian of the Calumbi Formation in eastern
Brazil. He does not figure the species and we assume it is also referable to Majungaella. Majungaella
annula (Neale, 1975), ex Tickalaracythere (J.W. Neale, Spec. Pap. Palaeont., 16, 15, pi. 8, fig. 8,
text-fig. 2a), from the Santonian of Western Australia differs in being much smoother and possess-
ing only “ghost’Mike concentric ornament.
Whatley & Ballent (in prep.) review all those taxa related to Progonocythere and provide an
emended diagnosis for Majungaella.
Distribution: Known only from the Albian-Cenomanian of the Tickalara Borehole, Queensland, Australia.
Acknowledgement: We thank Dr. M.A. Ayress (Department of Geology, The Australian National University,
Canberra) for photography of Krommelbein’s material.
Explanation of Plate 21, 102
Fig. 1, 9 RV, int. lat. (holotype, CPC 13868, 1017^m long); Fig. 2, 9 LV, int. lat. (paratype, CPC 13869, 920 //m long).
Scale A (200 /rm; X 80), figs. 1-2.
Majungaella ticka (2 of 4)
Majungaella ticka (4 of 4)
Stereo-Atlas of Ostracod Shells 21, 100
Stereo-Atlas of Ostracod Shells 21, 102
Stereo-Atlas of Ostracod Shells 21 (23) 103-106 (1994) Cypridea sylvesterbradleyi (1 of 4)
595.337.12 (116.312) (672.4: 163.011.05 + 673: 163.012.06) : 551.312.4
ON CYPRIDEA SYLVESTERBRADLEYI BATE sp. nov.
by Raymond H. Bate
(BVR International Ltd., Burgess Hill, England)
Cypridea sylvesterbradleyi sp. nov.
1992 Cypridea (Sebastianites) cf. eminens Grekoff & Krommelbein, J.G.S. Goodall, G.P. Coles & M.F. Whitaker, Bull. Cent. Rech. Explor. Prod. Elf-
Aquitaine, Mem. 13, 368, 370, 372, pi. 1 ( non Grekoff & Krommelbein, 1967).
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Diagnosis:
The Natural History Museum, London [BMNH] no. OS 14669; adult carapace. [Paratypes, BMNH nos.
OS 14670-14674],
Chevron TK-G4 Well, offshore Cabinda, Angola (approx, long. 12°00'E, 5°19'S). Toca B Formation, Late Barremian
(Early Cretaceous).
In recognition of Peter Sylvester-Bradley’s work on the genus Cypridea.
The Natural History Museum, London [BMNH] nos. OS 14669 (holotype, car.: PI. 21, 104, figs. 1-3), OS 14670 (para-
type, car.: PI. 21, 104, figs. 4, 5), OS 14671 (paratype, RV: PI. 21, 106, fig. 1), OS 14672 (paratype, LV: PI. 21, 106,
fig. 2), OS 14673 (paratype, car.: PI. 21, 106, fig. 3), OS 14674 (paratype, RV: PI. 21, 106, fig. 4).
Holotype and paratypes OS 14670, 14673 from type locality. Paratypes OS 14671, 14672, 14674 from Conoco
Kintombo-1 Well, Congo (approx, long. 11°52'E, lat. 4°19'S). Pointe Indienne Formation, Late Barremian.
Small species (690-790 pm adult length) of Cypridea with oval, posteriorly tapering carapace lacking typical rostrum.
RV larger thqn LV, with line of greatest length passing though mid-point; greatest height extending through anterior
cardinal angle. Shell surface with “domino” arrangement of 5 nodes, the development of which varies in intensity.
Nodes situated on either a smooth or a rugose surface covered in small pustules.
Explanation of Plate 21, 104
Figs. 1-3, car. (holotype, OS 14669, 690 pm long): fig. 1, ext. It. lat.; fig. 2, ext. dors.; fig. 3, ext. vent. Figs. 4, 5, car. (paratype,
OS 14670, 750 pm long): fig. 4, ext. rt. lat.; fig. 5, ext. It. lat.
Scale A (200 pm; x 120), fig. 1; scale B (200 /rm; x85), figs. 2, 3; scale C (200 /zm; x55), figs. 4, 5.
Stereo-Atlas of Ostracod Shells 21, 105 Cypridea sylvesterbradleyi (3 of 4)
Remarks: The ornamentation of C. sylvesterbradleyi varies in intensity dependant upon environmental conditions. The node
intensity is greatest when the shell surface is also pustulate. Smooth specimens may only possess a central node, although
the two posterior nodes are nearly always visible. No other species of Cypridea has this node pattern. Some variations
in carapace outline have been observed when the outline becomes more quadrate (PI. 21, 106, fig. 4); at present this is
not regarded as being indicative of sexual dimorphism. The subgenus Cypridea (Sebastianites) Krommelbein, 1962
(Senck. leth., 43, 460), established for species lacking a rostrum and being mid-dorsally sulcate, was subsequently given
generic rank by Neale & Su Deying, 1990 (Stereo-Atlas Ostracod Shells, 17, 101). Although C. sylvesterbradleyi does not
possess a rostrum it is not sulcate and does not, therefore, fit Sebastianites as diagnosed. Sulcate species have also been
placed in Morinina Anderson, 1939 (Ann. Mag. not. Hist., ser. 11,3, 302). Sylvester-Bradley, 1949 (Proc. Geol. Ass. ,
60, 127) was of the opinion that Morinina warranted subgeneric status within Cypridea, but significantly, Anderson
himself seems to have only used Cypridea after his 1939 paper. My opinion is that there is frequently an overlap of
characters between species that could be placed into different subgenera. Also lacustrine ostracods frequently exhibit
morphological variation due to changes in the environment. The use of subgenera within Cypridea is therefore not consi-
dered here to be sufficiently reliable to warrant its retention.
The only previous record of this species (Goodall et al., 1992, op. cit.), from the Congo Basin, was referred by the
authors (variously) to Cypridea (Sebastianites) cf. eminens (text) or Sebastianites cf. eminens (plate). C. eminens
Grekoff & Krommelbein, 1967 (Revue Inst. fr. Petrole, 22, 1315, pi. 2, fig. 11) is a large (1140 pm adult length) strongly
rostrate species, robustly quadrate in lateral view, possessing in the region of 20 or more nodes of varying size situated
on a pitted shell surface. As such it differs noticeably from C. sylvesterbradleyi.
Distribution: Middle to Late Barremian of West Africa. In Angola (Cabinda), it is found in the uppermost Middle Bucomazi to Upper
Bucomazi, a shale/marl Formation that may be replaced by carbonate horizons known as the Toca. The Toca B Forma-
tion overlies the Upper Bucomazi in the Chevron TK-G4 Well and it is from this horizon that the holotype has been
selected. Elsewhere, it is present in the Argiles Vertes/Pointe Indienne formations down to the upper part of the Pointe
Noir Formation of the Congo Basin, and in the Crabe and Melania formations in Gabon. In terms of the published Elf
Ostracod Zonation for the Early Cretaceous of West Africa, C. sylvesterbradleyi has a range of AS8b to AS9.
Acknowledgements: Thanks go to Chevron Overseas Petroleum Company of San Ramon, California and to Conoco Inc., Houston, Texas
for granting permission to describe and illustrate material from their wells and to publish the stratigraphical and locality
details of this new species. Dr. John Whittaker (BMNH) undertook the photography.
Explanation of Plate 21, 106
Fig. 1, RV, ext. lat. (paratype, OS 14671, 710/zm long). Fig. 2, LV, ext. lat. (paratype, OS 14672, 690 pm long). Fig. 3, car., ext. rt.
lat. (paratype, OS 14673, 700 pm long). Fig. 4, RV, ext. lat. (paratype, OS 14674, 740 pm long).
Scale A (200 pm; x 100), figs. 1, 2; scale B (200 pm; x55), figs. 3, 4.
Cypridea sylvesterbradleyi (2 of 4)
Stereo-Atlas of Ostracod Shells 21, 104
Stereo- Atlas of Ostracod Shells 21, 106
Cypridea sylvesterbradleyi (4 of 4)
Stereo-Atlas of Ostracod Shells 21 (24) 107-110 (1994)
595.337.14 (116.22) (411 : 162.007.56): 551.312 + 552.52
Theriosynoecum fimbriachela (1 of 4)
1994
ON THERIOSYNOECUM FIMBRIACHELA WAKEFIELD
by Matthew I. Wakefield
(British Gas pic. Gas Research Centre, Loughborough, England)
Theriosynoecum fimbriachela Wakefield, 1994
Theriosynoecum fimbriachela sp. nov., M.I. Wakefield, Palaeontogr. Soc. (Monogr.), 148 (593), 40-41, pi. 6, figs. 1-9. [Published
December 23rd 1994)].
Holotype:
Type locality:
Figured specimens:
The Natural History Museum, London [BMNH] no. OS 13854; c r left valve.
[Paratypes: nos. OS 13855-13859].
Basal 10 cm, Bed 1 1 of Hudson {In: Emeleus, C.H. (Ed.), in press, The Geology of Rum, and the Adjacent
Islands. Memoir for Sheet 60, British Geological Survey, London, HMSO), Lonfearn Member, Lealt
Shale Formation, Great Estuarine Group, Middle Jurassic; Allt na h’Airde Meadhonaich, Isle of Eigg,
Scotland; National Grid Reference: NM 497 888; lat. 56°56'N, long. 6°06'W.
The Natural History Museum, London [BMNH] nos. OS 13854 (holotype, o’ LV: PL 21, 108, figs. 1, 2),
OS 13855 (paratype, A-2, LV: PL 21, 108, figs. 5, 6), OS 13857 (paratype, A-3, LV: PL 21, 110, figs. 1-6),
OS 13858 (paratype, 9 car.: PI. 21, 108, fig. 3), OS 13859 (paratype, A-l, RV: PL 21, 108, fig. 4).
OS 13854, OS 13858 and OS 13859 from type locality and horizon. OS 13855 and OS 13857 are from
5 cm from above base Bed 8, Lonfearn Member, Lealt Shale Formation, North Shore, Eigg (Wakefield
1994, op. cit.).
Explanation of Plate 21, 108
Figs. 1, 2, o’ LV (holotype, OS 13854, 1073//m long): fig. 1, ext. lat.; fig. 2, dors. Fig. 3, 9 car., ext. It. lat. (paratype, OS 13858,
1109 /mi long). Fig. 4, A-l RV, ext. lat. (paratype, OS 13859, 927 gm long). Figs. 5, 6, A-2 LV (paratype, OS 13855, 704 /im long):
fig. 5, ext. lat.; fig. 6, dors.
Scale A (250 /im; x43), figs. 1-4; scale B (250//m; x70), figs. 5, 6.
Stereo- Atlas of Ostracod Shells 21, 109
Theriosynoecum fimbriachela (3 of 4)
Diagnosis:
Remarks:
Distribution:
A cknowledgement:
Elongate species of Theriosynoecum. Well developed first and second order reticulation. Four posterior
marginal spines on left valve only. At least 16 anterior and seven posterior short, straight marginal pore
canals.
The position of nodes seen in T. fimbriachela is adequately described by the generic standard proposed by
Wakefield & Athersuch 1990 {Stereo-Atlas Ostracod Shells, 17, 31-40).
T. fimbriachela is considered to be closely related to Theriosynoecum ramocuspis Wakefield, 1994 {op.
cit.), which may be its descendant. Both species possess posterior marginal spines on their left valves only.
T. ramocuspis lacks the second order reticulation of T. fimbriachela, and has six posterior marginal spines
and seven anterior marginal spines. In addition, T. ramocuspis has cardinal angle spines on its left valve,
which are not developed in T. ramocuspis.
A fresh to oligohaline tolerant species known only from the Lonfearn Member, Lealt Shale Formation,
Great Estuarine Group, Inner Hebrides, Scotland; Middle Jurassic.
NERC and BP for CASE award GT 4/88/GS/62 held in the Dept, of Geology, Leicester University,
England (1988-91).
700 -i
Adults
I 600 -
Jj> 500 -
O)
O 400 -
>
^ 300
200
A-l
A-3
A-2
• II.
A -4
• I.
• I
n = 51
400
500
600
1000 1100
1200
700 800 900
Valve length
Text-fig. 1. Size dispersion of Theriosynoecum fimbriachela from a single sample taken at the type horizon and level. Mean increase
in length between instars is 26%.
Explanation of Plate 21, 110
Figs. 1-6, A-3 LV (paratype, OS 13857, 655 //m long): fig. 1, ext. 1, ext. lat.; fig. 2, dors.; fig. 3, ant.; figs. 4, 5, ant. ornament; fig.
6, vest, spines.
Scale A (250/im; x75), figs. 1-3; scale B (50//m; x420), figs. 4-6.
ON POLONIELLA ADAMCZAKI LUNDIN sp. nov.
by Robert F. Lundin
(Arizona State University, Tempe, U.S.A.)
Poloniella adamczaki sp. nov.
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Department of Geology, Arizona State University (ASU), no. ASU X-209; female carapace.
[Paratypes: Arizona State University nos. ASU X-210-X-213].
Section P5, glade SE of Decaturville, Perryville Quadrangle, Decatur County, Tennessee, U.S.A. ;
lat. 35°30'49.5"N, long. 88°3'24"W. Holotype from sample P5-11, 16.3 m above the base of the
Brownsport Formation, late Ludlow Series, Silurian.
In honour of Dr. F.J. Adamczak of the University of Stockholm, Sweden, in recognition of his
important contributions to the knowledge of Poloniella.
Department of Geology, Arizona State University (ASU), nos. ASU X-209 (holotype, female car.: PI.
21, 112, figs. 1, 2), ASUX-210 (paratype, male car.: PI. 21, 112, figs. 3, 4), ASU X-211 (paratype,
female LV.: PL 21, 1 12, fig. 5; PI. 21, 1 14, fig. 4), ASU X-212 (paratype, female car.: PI. 21, 1 14, figs.
1, 2), ASU X-213 (paratype, female car.: PI. 21, 1 14, fig. 3). All of the figured specimens are adults.
All but one of the figured specimens are from samples at the type locality. ASU X-211 is from the
upper part of the Brownsport Formation, late Ludlow, Silurian in the east-central part of Bath
Springs Quadrangle, Decatur County, Tennessee.
Explanation of Plate 21, 112
Figs. 1, 2, female car. (holotype, ASU X-209, 1128 /ym long): fig. 1, ext. rt. lat.; fig. 2, ext. vent. Figs. 3, 4, male car. (paratype, ASU X-
210, 1053 /ym long): fig. 3, ext. vent.; fig. 4, ext. It. lat. Fig. 5, female LV (paratype, ASU X-211, 1053 /ym long), int. lat. (postero-
dorsal part broken).
Scale A (200 /ym; x45), figs. 1, 2; scale B (200 /ym; x49), figs. 3, 4; scale C (200 /ym; X48), fig. 5.
Stereo-Atlas of Ostracod Shells 21, 113
Poloniella adamczaki (3 of 4)
Diagnosis:
Remarks:
Distribution:
Acknowledgement:
Poloniella species with carina-like LI joined ventrally to carina-like L4; broad well-developed L3
joined ventrally with small weakly bulbous L2; S2 very broad and well-developed. Lateral outline
weakly convex to very weakly concave ventrally. Straguloid process distinct, short. Dimorphism
weakly expressed by slight inflation of female valves posterior to L4. Details of hinge structure and
contact margin obscure.
The species described here is generally similar to Poloniella devonica Giirich (see F. Adamczak,
Acta palaeont. pol., 6, 296, 1961) in lobation and sulcation. The latter species can be distinguished
from P. adamczaki by: 1, its distinctively concave midventral surface; 2, its broader LI and more
bulbous L2; 3, its longer straguloid process; and 4, the fact that the dimorphic inflation of the
female involves L4 and is more ventral than in P. adamczaki. The dimorphic inflation of the
females of P. adamczaki apparently does not involve L4. In lateral view the L4 of females is essen-
tially identical to that of males (compare PI. 21, 112, fig. 1 with PI. 21, 112, fig. 4). Dorsal and
ventral views, however, show the posterior admarginal surfaces of females to be convex whereas
those of males are concave (compare PI. 21, 112, figs. 2, 3).
Of the approximately 40 specimens available for study, only one is a single valve (PI. 21, 1 12, fig.
5; PI. 21, 114, fig. 4). Unfortunately, the posterodorsal part of this valve is broken. The interior
view of it indicates that the limen is formed by S3 and that the domatium and limen are very poorly
developed.
Known from sixteen samples from five localities in the Brownsport Formation, Ludlow Series,
Silurian, of Perryville, Bath Springs, Savannah and Wolf Pit Ridge quadrangles, western Tennes-
see. The samples range from 3.1 m to 16.3 m above the base from the Brownsport Formation.
Support from the NATO collaborative research programme is gratefully acknowledged.
Explanation of Plate 21, 114
Figs. 1, 2, female car. (paratype, ASU X-212, 1090 /ym long): fig. 1, ext. It. lat.; fig. 2, ext. dors. Fig. 3, female car. (paratype, ASU X-
213, 1128/ym long): ext. rt. lat. Fig. 4, female LV (paratype, ASU X-211, 1053 /ym long): ext. lat.
Scale A (200 /ym; x47), figs. 1, 2; scale B (200 /ym; x45), fig. 3; scale C (200 /ym; x48), fig. 4.
Stereo-Atlas of Ostracod Shells 21 112
Poloniella adamczaki (2 of 4)
Poloniella adamczaki (4 of 4)
Stereo-Atlas of Ostracod Shells 21, 114
Stereo- Atlas of Ostracod Shells 21 (26) 115-118 (1994) Ploteristes sylvesterbradleyi (1 of 4)
595.336.11 (113.331) (420:162.003.51): 551.351 +552.54
ON PLOTERISTES SYLVESTERBRADLEYI SIVETER gen. et sp. nov.
by David J. Siveter
(University of Leicester, England)
Genus PLOTERISTES gen. nov.
Type-species (by original designation): Ploteristes sylvesterbradleyi sp. nov.
From Greek, Ploter. a sailor, and istes, an agent; alluding to the fanciful resemblance of the faceted preaduuctorial node
to a sailor’s hat. Gender: masculine.
Kloedeniine beyrichiacean with wide striate field subcruminally in females and a wing-like lateral projection of the
ventral part of the velum in tecnomorphs; cristae lacking. Preadductorial node well developed, projects dorso-laterally;
top is faceted and finely reticulate. Syllobium with prominent anterior cusp; posterior syllobial cusp and anterior lobal
cusp are smaller, connected by distinct velar bend. Crumina long, has two, broad, well defined ridges laterally. Lobes
and dorsal part of crumina have a few scattered tubercles.
Ploteristes has morphological features typical of the kloedeniines (see Martinsson, A., Bull. geol. Instn Univ. Uppsala,
42, 18, 19, 1963).
P. sylvesterbradleyi is similar to about 20 kloedeniine species which have been assigned to either Gibba Fuchs, 1919
(type-species: Beyrichia [Gibba] spinosa Fuchs, 1919), a senior subjective synonym (see Schallreuter, R.E.L., & Schafer,
R., Geol. Palaont. West/., 7, 57, 1987) of Carinokloedenia Abushik, 1971 (type-species: Carinokloedenia carina
Abushik, 1971), or to Cornikloedenina Abushik, 1971 (type-species: Cornikloedenia althi Krandijevsky, 1963). These
species are known from the former Soviet Union (Urals, Moldavia and, principally, Podolia e.g. see Abushik, A.F., in:
Abushik, et al.. Palaeozoic ostracodes from key sections in the European part of the U.S.S.R., 7-133, pis. 1-46, Nauka,
Moscow, 1971) and western Europe (Germany, Spain, France, Poland, Czech Republic, e.g. see Groos-Uffenorde, H.,
Derivation of name:
Diagnosis:
Remarks:
Explanation of Plate 21, 116
Figs. 1, 2, o* RV (OS 14663, 1810/zm long): fig. 1, ext. lat . ; fig. 2, oblique vent. Figs. 3, 4, 9 RV (holotype, OS 14667, 1820 pm long):
fig. 3, vent.; fig. 4, ext. lat.
Scale A (300 /rm; X 34), figs. 1-4.
Stereo-Atlas of Ostracod Shells 21, 117
Ploteristes sylvesterbradleyi (3 of 4)
in: Maddocks, R.F. (Ed.), Applications of Ostracoda, 338-351, Univ. Houston, 1983). Gibba agnesae Schallreuter &
Schafer, 1987 is, hitherto, the only known pre-Devonian member of this species complex, all of which require reassess-
ment to determine their generic assignment and wether Gibba and Cornikloedenina can be sustained as distinct.
Ploteristes differs from species of these genera by a combination of: having a wide subcruminal striate field and a reticu-
late preadductorial node and in lacking lobal, velar or cruminal cristae. Furthermore, type-species C. althi differs in
lacking a wing-like tecnomorphic velum.
Ploteristes sylvesterbradleyi sp. nov.
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Diagnosis:
Remarks:
Distribution:
A ckn o wledgemen t:
The Natural History Museum, London [BMNH], no. OS 14667; a female right valve.
NW side of Brinkmarsh Quarry (Nat. Grid Ref. ST 6735 9132), near Whitfield, Tortworth inlier, Avon, England;
approximately lat. 51°38'N, long. 2°25'W. A limestone band at the base of the Brinkmarsh Formation, basal Sheinwoo-
dian, basal Wenlock Series, Silurian.
In honour of my mentor, the late Professor P.C. Sylvester-Bradley.
The Natural History Museum, London, nos. OS 14663 (tecnomorphic RV: PI. 21, 116, figs. 1, 2), OS 14665 (9 LV: PI.
21, 118, figs. 1, 3), OS 14666(9 RV: PI. 21, 118, fig. 6), OS 14667 (holotype, 9 RV: PI. 21, 116, figs. 3,4; PI. 21, 118,
figs. 4, 5) and OS 14668 (tecnomorphic RV: PI. 21, 118, fig. 2).
All of the specimens, together with the unfigured tecnomorphic right valve OS 14664, are from the type locality and
horizon.
As for the genus, which is currently monotypic.
P. sylvesterbradleyi represents by far the earliest recorded representative of the Kloedeniinae Ulrich & Bassler, 1923, a
taxon hitherto known from Upper Silurian (late Ludlow and Pfidoli series) and Devonian deposits. All known material
of P. sylvesterbradleyi occurs as calcareous valves on pieces of limestone and was prepared mechanically.
Known only from the Lower Silurian type locality, in SW England.
I thank the NATO collaborative research programme for its support.
Explanation of Plate 21, 118
Figs. 1, 3, 9 LV (OS 14665, 1500 pm long): fig. 1, ext. lat.; fig. 3, vent, detail of crumina. Fig. 2, tecnomorphic RV ext. lat. (OS 14668,
1240 pm long). Figs. 4, 5, 9 RV (holotype, OS 14667, 1820 /rm long): fig. 4, ant.; fig. 5, ant. obi. detail of preadductorial node. Fig.
6, 9 RV ext. lat. (OS 14666, 1460 pm long).
Scale A (300 pm; x37), fig. 1; scale B (300 ^m; x35), fig. 2; scale C (200 //m; x 56), fig. 3; scale D (300 pm; X 34), fig. 4; scale E
(150 pm; x85), fig. 5; scale F (300 pm; x37), fig. 6.
Ploteristes sylvesterbradleyi (2 of 4)
Stereo- Atlas of Ostracod Shells 21, 116
Stereo-Atlas of Ostracod Shells 21, 118
Ploteristes sylvesterbradleyi (4 of 4)
Stereo-Atlas of Ostracod Shells 21 (27) 119-122 (1994) Primitiella minima (1 of 4)
595.336 (113.312) (766: 162.098.34): 551.351 + 552.52
ON PRIMITIELLA MINIMA (HARRIS)
by Mark Williams1, Robert F. Lundin2 & David J. Siveter1
(University of Leicester, England 1 & Arizona State University,
Tempe, U.S.A.2)
Primitiella minima (Harris, 1957)
1957 Leperditella rex (Coryell & Schenk) minima R.W. Harris n. subsp., Bull. Okta geol. Surv., 75, 157, pi. 3, figs. 3a, b.
1964 Primitiella minima (Harris); A.L. Guber & V. Jaanusson, Butt. geol. Instn. Univ. Uppsala , 43, 18, pi. 1, figs. 1-12, text-figs. 9-11.
1991 P. minima (Harris); F. Adamczak, J. Paleont. 65, 256.
Holotype:
Type locality:
Figured specimens:
Diagnosis:
Museum of Comparative Zoology, Harvard University, U.S.A. , no. MCZ4527; a female carapace.
Decker’s Bed 24 (see Harris 1957), Bromide Formation, Simpson Group, middle Ordovician; Highway 99 Section, approximately 5 kms S of Fittstown,
Pontotoc County, Oklahoma, U.S.A.; lat. 34°25'N, long. 97°08'W.
Museum of Comparative Zoology, Harvard University (MCZ), U.S.A., no. MCZ4527 (holotype, 9 car.: PI. 21, 120, fig. 1). Geology Department,
Leicester University (LEIUG), England, nos. LEIUG 112529 ( 9 LV: PI. 21, 120, fig. 2), LEIUG 116121 (o- car.: PI. 21, 120, fig. 3), LEIUG 116123
(o- car.: PI. 21, 120, fig. 5), LEIUG 116118 (o- LV: PI. 21, 120, fig. 6), LEIUG 116122 (o- car.: PI. 21, 120, fig. 7), LEIUG 116120 (9 car.: PI. 21, 120,
fig. 8), LEIUG 112525 (9 LV: PI. 21, 122, fig. 1), LEIUG 112528 (9 RV: PI. 21, 122, fig. 2), LEIUG 116119 (o- RV: PI. 21, 122, fig. 3), LEIUG 112527
(o- LV; PL 21, 122, fig. 4), LEIUG 112530 (9 RV: PI. 21, 122, figs. 5, 7, 8), LEIUG 112526 ( 9 LV: PI. 21, 122, fig. 6). The Natural History Museum
London, England [BMNH], no. OS 13589 (9 car.: PI. 21, 120, fig. 4). MCZ 4527 is from the type horizon and locality. OS 13589 and LEIUG specimens
are from the Pooleville Member, 27.60 m below the top of the Bromide Formation, Simpson Group, Spring Creek locality (see R.O. Fay et at, Paleont.
Contr. Univ. Kans. (Monogr.), 1, 1982) approximately 6 km S of Pooleville, Murray County, Oklahoma, U.S.A.
Dimorphic, smooth Primitiella with poorly developed to obsolete sulcal depression. Domatium is delimited from anterior part of domicilium by
dorsoventrally oriented limen and has a single longitudinally elongate loculus. Adductor muscle field immediately anterior of limen in females and in
Explanation of Plate 21, 120
Fig. 1, 9 car., ext. rt. lat. (holotype, MCZ 4527, 0.85 mm long). Fig. 2, 9 LV int. lat. (LEIUG 112529, 0.90 mm long). Fig. 3, o' car.,
dors. (LEIUG 116121, 0.92 mm long). Fig. 4, 9 car., dors. (OS 13589, 1.00 mm long). Fig. 5, o' car., ext. rt. lat. (LEIUG 116123,
0.90 mm long). Fig. 6, o * LV int. lat. (LEIUG 116118, 0.91 mm long). Fig. 7, cr car., vent. (LEIUG 116122, 0.90 mm long). Fig. 8,
9 car., vent. (LEIUG 116120, 0.94 mm long).
Scale A (200 /im; x54), figs. 1, 3, 5-7; scale B (200 gm; x50), figs. 2, 4, 8.
Stereo-Atlas of Ostracod Shells 21, 121
Primitiella minima (3 of 4)
corresponding position in tecnomorphs. Right valve has narrow marginal ridge paralleling the free margin from anterocardinal comer to posteroventral
region, weakly developed posteriorly. Left valve has a wider, subdued marginal elevation weakly demarcated from ventral surface of valve and corre-
sponding in position to the contact groove. Surface of marginal elevation can be striate.
Remarks: Guber & Jaanusson (1964) did not comment on the interior differences between female and tecnomorphs. Lundin et at ( J . Paleont., in press) identify
domatial dimorphism in P. minima (see Diagnosis). The domatium is expressed exteriorly by posterior inflation of the females valve.
Recognition of the domatium in females of P. minima invites re-investigation of other species of Primitiella Ulrich, 1894 and of the related upper Ordo-
vician genus Monotiopleura Guber & Jaanusson, 1964. Primitiella constricta Ulrich, 1894, the type-species of Primitella, apparently has posterior
domiciliar dimorphism (Guber & Jaanusson 1964, 22), but the presence of a domatium is undocumented. In size, shape, marginal structures, possession
of a stragular process, hinge and overlap conditions P. minima and P. constricta are very similar P. constricta apparently differs by having a better defined
sulcal depression and reticulate valve surface (see G.M. Kay, J. Paleont., 14, 262, pi. 33, figs. 22-26, 1940). Guber & Jaanusson (1964, 18) considered that
the only other clearly congeneric taxon is Primitiella plattevillensis Kay, 1940, but the presence of a domatium in this species is likewise unknown.
Guber & Jaanusson (1964, 19) considered P. minima to be characterised by ornament of fine scattered pits. Our investigations suggest the valve is
smooth, but may be striate adjacent the free and dorsal margins. Our material verifies the hinge structures of the right valve (Guber & Jaanusson 1964,
20-21) which comprise a narrow longitudinal groove becoming broader and deeper towards the cardinal corners. Guber & Jaanusson (1964, 21) noted
a narrow groove in the hinge of the left valve but our material does not permit confirmation of this.
The left valve overlaps the right ventrally and posteriorly and correspondingly the contact groove
of the left valve extends from the posterocardinal corner to anteroventral region. Guber & Jaanus-
son (1964, 20) considered the left valve to overlap the ventral and posterior portions of the marginal
ridge on the right valve, but noted that this might be an artifact of compression. In all of the well ,-qq
preserved carapaces we have studied the right valve closely parallels but does not overlap this ridge.
The subrectangular lateral shape, weakly concave ventral part of the lateral outline and posterior
and anterior stragular processes of the left valve are other features characterising P. minima.
Dislribution: Middle Ordovician Mountain Lake and Pooleville members, Bromide Formation, in sections at
Highway 99, North Interstate 35, South Interstate 35, Highway 77, Spring Creek, West Spring q)
Creek and Rock Crossing, southern Oklahoma, U.S.A. (for details of localities see Fay et al., I
1982). 400
Acknowledgements: MW thanks the Natural Environment Research Council (studentship GT4/87/GS/122) and DJS
and RFL thank NATO for its support.
Text-fig. 1. Size of heteromorphs (circles) and tecnomorphs (squares) of P. minima from a single sample, Pooleville
Member, Bromide Formation, Spring Creek locality, Murray County, Oklahoma.
Explanation of Plate 21, 122
Fig. 1, 9 LV int. lat. (LEIUG 112525, 1.03 mm long). Fig. 2, 9 RV int. lat. (LEIUG 112528, 0.92 mm long). Fig. 3, o' RV int. lat.
(LEIUG 116119, 0.88 mm long). Fig. 4, O' LV int. lat. (LEIUG 112527, 0.94 mm long). Figs. 5, 7, 8, 9 RV (LEIUG 112530, 0.90 mm
long): fig. 5, int. lat.; fig. 7, domatium and limen; fig. 8, adductorial pit. Fig. 6, 9 LV int. lat. (LEIUG 112526, 1.00 mm long).
Scale A (200 /im; x50), figs. 1-6; scale B (100/tm; x90), fig. 7; scale C (50 gm; X 220), fig. 8.
_| I L_l
700 800 900
Length, pm
Stereo-Atlas of Ostracod Shells 21, 120
Primitiella minima (2 of 4)
Primitiella minima (4 of 4)
Stereo-Atlas of Ostracod Shells 21, 122
Stereo-Atlas of Ostracod Shells 21 (28) 123-126 (1994) Garciana jaanussoni (1 of 4)
595.336 (113.312) (82 : 162.069.30): 551.351 +552.54
ON GARCIANA JAANUSSONI (DE GARCIA & PROSERPIO)
by Roger E. L. Schallreuter
(University of Hamburg, Germany)
Genus GARCIANA gen. nov.
Type-species: Lomatobolbina jaanussoni de Garcia & Proserpio, 1978.
In honour of Elsa Rossi de Garcia, Buenos Aires, Argentina.
Very small to small, elongate ?binodicope. Dorsally and distinctly anteriorly of mid-length there is
a well developed sulcus; a small weak node occurs at the anterior border of the sulcus. Ventral to
the node there is a strong, high node or long spine. The ventral surface of the valve is somewhat
flattened, with a subdued ridge at the free margin.
The type species of this genus is not considered to be allied to Lomatobolbina. Garciana seems to
be more related to be binodicope Reginea Schallreuter ( Stereo-Atlas Ostracod Shells, 10, 21-24,
1983), which differs by having a prominent posterior node, pseudovelum and reticulation.
Derivation of name:
Diagnosis:
Remarks:
Explanation of Plate 21, 124
Fig. 1, RV ext. lat. (GPIMH3601, Ml pm long). Fig. 2, RV ext. lat. (GPIMH 3602, 488 pm long). Fig. 3, RV ext. lat. (GPIMH 3603,
396 /ym long).
Scale A (100 pm; x 137), fig. 1; scale B (100 /ym; x 177), fig. 2; scale C (100 /ym; x 167), fig. 3.
Stereo-Atlas of Ostracod Shells 21, 125
Garciana jaanussoni (3 of 4)
Garciana jaanussoni (de Garcia & Proserpio, 1978)
1978 Lomatobolbina jaanussoni n. sp., E.R. de Garcia & C. Proserpio, Ameghiniana, 15, 397, pi. 2, fig. 1, pi. 3, fig. 5 [? 1979].
1979 Lomatobolbina ; G. Furque, Bol. Serv. geol. nac. Argentina, 164, 24.
1981 Lomatobolbina', R.E.L. Schallreuter, Mitt, geol.-palaont. Inst. Univ. Hamburg, 51, 11.
1986/7 Lomatobolbina jaanussoni Rossi de Garcia & Proserpio; E.K. Kempf, Sonderveroff. geol. Inst. Univ. Koln, 50, 469, 1986a;
51, 295, 1986b; 52, 670, 1987.
Ho l o type:
Type locality:
Diagnosis:
Figured specimens:
Distribution:
Departamento Investigaciones de Base (Paleontologia) del Servicia Geologico Nacional, Buenos
Aires, Argentina; Paleontologia no. 204; a carapace.
Quebrada de Los Blanquitos, San Jose de Jachal (Hoja 18c), San Juan, Argentina; approximately
lat. 30°18'S, long. 68°48'W; Los Azules Formation, Llanvirn or Llandeilo series, Ordovician.
As for the genus, which is currently monotypic.
Geologisch-Palaontologisches Institut und Museum, University of Hamburg, (GPIMH),
Germany, nos. 3601 (RV: PL 21, 124, fig. 1), 3602 (RV: PI. 21, 124, fig. 2), 3603 (RV. 21, 124, fig.
3), 3604 (LV: PI. 21, 126, fig. 1), 3605 (car: PI. 21, 126, fig. 2) and 3606 (LV: PI. 21, 126, fig. 3).
All of the specimens are from Quebrada Las Aguaditas, San Juan, Argentina; approximately lat.
30°18'S, long. 68°48'W; type section of the Las Aguaditas Formation, Llanvirn or Llandeilo
series, Ordovician. Material provided by Dr. Oliver Lehnert, sample nos. SE-CON 66 (specimen
3605) and SE-CON 65 (all other specimens).
Known only from the type region. Quebrada Los Blanquitos and Quebrada Las Aguaditas, San
Jose de Jachal (Hoja 18c), San Juan, Argentina.
Explanation of Plate 21, 126
Fig. 1, LV ext. lat. (GPIMH 3604, 473 pm long). Fig. 2, car. ext. vent. (GPIMH 3605, 560 pm long). Fig. 3, LV ext. lat. (GPIMH 3606,
402 pm long).
Scale A (100 /ym; x 138), fig. 1; scale B (100 /ym; X 116), fig. 2; scale C (100 /ym; x 165), fig. 3.
Garciana jaanussoni (2 of 4)
Stereo-Atlas of Ostracod Shells 21, 124
Stereo-Atlas of Ostracod Shells 21, 126
Garciana jaanussoni (4 of 4)
Stereo-Atlas of Ostracod Shells 21 (29) 127-129 (1994)
Index, Volume 21, 1994 (1 of 3)
General Index
abyssorum, Cytheropteron; 63-70
adamczaki, Poloniella\ 111-114
Al-Furaih, A.A.F., On Carinocythereis batei Jain; 71-74
Athersuch, J., Home, D.J. & Whittaker, J.E., On Bythocythere bradleyi Athersuch, Horne & Whittaker; 59-62
Ayress, M.A., Coles, G.P. & Whatley, R.C., On Kuiperiana bathymarina Ayress, Coles & Whatley sp. nov.; 27-30
Ayress, M.A. & Passlow, V., On Cytheropteron abyssorum Brady; 63-70
Ballent, S., Maybury, C.A. & Whatley, R.C., On Exposterocythere margaritata (Krommelbein); 91-94
Ballent, S., Maybury, C.A. & Whatley, R.C., On Exposterocythere queenslandensis (Krommelbein); 95-98
Ballent, S., Maybury, C.A. & Whatley, R.C., On Majungaella ticka (Krommelbein); 99-102
Bate, R.H., On Cypridea sylvesterbradleyi Bate sp. nov.; 103-106
batei, Carinocythereis-, 71-74
Bathycythere comitatus Wouters sp. nov.; 39-42
bathymarina, Kuiperiana-, 27-30
Berg-Madsen, V., Hinz-Schallreuter, I., Williams, M. & Siveter, D.J., On Vestrogothia longispinosa Kozur; 21-26
Berg-Madsen, V., Siveter, D.J. & Williams, M., On Wimanicharion matthewi (Wiman); 17-20
bitruncata, Palmoconcha-, 43-46
Boomer, I., On Pariceratina ubiquita Boomer sp.nov.; 79-86
Boomer, I. & Whittaker, J.E., On Parahemingwayella ginginensis Boomer & Whittaker sp. nov.; 31-34
bradleyi, Bythocythere-, 59-62
buncensis, Chrysocythere; 87-90
Bythocythere bradleyi Athersuch, Horne & Whittaker; 59-62
Cambria melnikovae Ivanova; 13-16
Cambria sibirica Neckaja & Ivanova; 9-12
Carinocythereis batei Jain; 71-74
Chrysocythere buncensis Keen sp. nov.; 87-90
Coles, G.P., Whatley, R.C. & Ayress, M.A., On Kuiperiana bathymarina Ayress, Coles & Whatley sp. nov.; 27-30
comitatus, Bathycythere-, 39-42
Cypridea sylvesterbradleyi Bate sp. nov.; 103-106
Cytheropteron abyssorum Brady; 63-70
Dewey, C.P. & Kohn, P., On Knoxina lecta Coryell & Rogatz; 51-58
Exposterocythere margaritata (Krommelbein); 91-94
Exposterocythere queenslandensis (Krommelbein); 95-98
fimbriachela, Theriosynoecum; 107-110
Garciana jaanussoni (de Garcia & Proserpio); 123-126
ginginensis, Parahemingwayella-, 31-34
Groos-Uffenorde, H. & Tschigova, V., On Kuzminaella venusta Tschigova; 47-50
Hinz-Schallreuter, I., Melnikova, L., Williams, M. & Siveter, D.J., On Cambria sibirica Neckaja & Ivanova; 9-12
Hinz-Schallreuter, I., Williams, M., Siveter, D.J. & Berg-Madsen, V., On Vestrogothia longispinosa Kozur; 21-26
Horne, D.J., Whittaker, J.E. & Athersuch, J., On Bythocythere bradleyi Athersuch, Horne & Whittaker; 59-62
jaanussoni, Garciana-, 123-126
Keen, M.C., On Chrysocythere buncensis Keen sp. nov.; 87-90
Knoxina lecta Coryell & Rogatz; 51-58
Kohn, P. & Dewey, C.P., On Knoxina lecta Coryell & Rogatz; 51-58
Kuiperiana bathymarina Ayress, Coles & Whatley sp. nov.; 27-30
Kuzminaella venusta Tschigova; 47-50
lecta, Knoxina; 51-58
longispinosa, Vestrogothia-, 21-26
Lundin, R.F., On Poloniella adamczaki Lundin sp. nov.; 111-114
Lundin, R.F., Siveter. D.J. & Williams, M., On Primitiella minima (Harris); 119-122
Majungaella ticka (Krommelbein); 99-102
margaritata, Exposterocythere-, 91-94
matthewi, Wimanicharion-, 17-20
Maybury, C.A., On Sagmatocythere paravariolata Maybury sp. nov.; 75-78
Maybury, C.A., On Semicytherura parasella Maybury sp. nov.; 35-38
Maybury, C.A., Whatley, R.C. & Ballent, S., On Exposterocythere margaritata (Krommelbein); 91-94
Maybury, C.A., Whatley, R.C. & Ballent, S., On Exposterocythere queenslandensis (Krommelbein); 95-98
Maybury, C.A., Whatley, R.C. & Ballent, S., On Majungaella ticka (Krommelbein); 99-102
Melnikova, L., Siveter, D.J. & Williams, M., On Cambria melnikovae Ivanova; 13-16
Melnikova, L., Williams, M., Siveter, D.J. & Hinz-Schallreuter, I., On Cambria sibirica Neckaja & Ivanova; 9-12
melnikovae, Cambria-, 13-16
minima, Primitiella-, 119-122
Moechowia rava (Sarv); 5-8
Palmoconcha bitruncata (Brady); 43-46
Parahemingwayella ginginensis Boomer & Whittaker sp. nov.; 31-34
parasella, Semicytherura-, 35-38
paravariolata, Sagmatocythere-, 75-78
Pariceratina ubiquita Boomer sp. nov.; 79-86
Passlow, V. & Ayress, M.A., On Cytheropteron abyssorum Brady; 63-70
Stereo-Atlas of Ostracod Shells 21, 128
Index, Volume 21, 1994 (2 of 3)
Ploteristes sylvesterbradleyi Siveter gen. et sp. nov.; 115-118
Poloniella adamczaki Lundin sp. nov.; 111-114
Primiriella minima (Harris); 119-122
queenslandensis, Exposterocythere; 95-98
rava, Moeckowia; 5-8
rusconii, Trispinatia', 1-4
Sagmatocythere paravariolata Maybury sp. nov.; 75-78
Schallreuter, R.E.L., On Garciana jaanussoni (de Garcia & Proserpio); 123-126
Schallreuter, R.E.L., On Moeckowia rava (Sarv); 5-8
Schallreuter, R.E.L., On Trispinatia rusconii (de Garcia & Proserpio); 1-4
Semicytherura parasella Maybury sp. nov.; 35-38
sibirica, Cambria ; 9-12
Siveter, D.J., On Ploteristes sylvesterbradleyi Siveter gen. et sp. nov.; 115-118
Siveter, D.J., Berg-Madsen, V., Hinz-Schallreuter, I. & Williams, M., On Vestrogothia longispinosa Kozur; 21-26
Siveter, D.J., Hinz-Schallreuter, I., Melnikova, L. & Williams, M., On Cambria sibirica Neckaja & Ivanova; 9-12
Siveter, D.J., Williams, M. & Berg-Madsen, V., On Wimanicharion matthewi (Wiman); 17-20
Siveter, D.J., Williams, M. & Lundin, R.F., On Primitiella minima (Harris); 119-122
Siveter, D.J., Williams, M. & Melnikova, L., On Cambria melnikovae Ivanova; 13-16
sylvesterbradleyi, Cypridea ; 103-106
sylvesterbradleyi, Ploteristes ; 115-118
Theriosynoecumfimbriachela Wakefield; 107-110
ticka, Majungaella\ 99-102
Trispinatia rusconii (de Garcia & Proserpio); 1-4
Tschigova, V. & Groos-Uffenorde, H., On Kuzminaella venusta Tschigova; 47-50
ubiquita, Pariceratina; 79-86
venusta, Kuzminaella ; 47-50
Vestrogothia longispinosa Kozur; 21-26
Wakefield, M., On Theriosynoecum fimbriachela Wakefield; 107-110
Whatley, R.C., Ayress, M.A. & Coles, G.P., On Kuiperiana bathymarina Ayress, Coles & Whatley; 27-30
Whatley, R.C., Ballent, S. & Maybury, C.A., On Exposterocythere margaritata (Krommelbein); 91-94
Whatley, R.C., Ballent, S. & Maybury, C.A., On Exposterocythere queenslandensis (Krommelbein); 95-98
Whatley, R.C., Ballent, S. & Maybury, C.A., On Majungaella ticka (Krommelbein); 99-102
Whittaker, J.E., Athersuch, J. & Horne, D.J., On Bythocythere bradleyi Athersuch, Horne & Whittaker; 59-62
Whittaker, J.E. & Boomer, I., On Parahemingwayella ginginensis Boomer & Whittaker sp. nov.; 31-34
Williams, M., Berg-Madsen, V. & Siveter, D.J., On Wimanicharion matthewi (Wiman); 17-20
Williams, M., Lundin, R.F. & Siveter, D.J., On Primitiella minima (Harris); 119-122
Williams, M., Melnikova, L. & Siveter, D.J., On Cambria melnikovae Ivanova; 13-16.
Williams, M., Siveter, D.J., Berg-Madsen, V. & Hinz-Schallreuter, I., On Vestrogothia longispinosa Kozur; 21-26
Williams, M., Siveter, D.J., Hinz-Schallreuter, I. & Melnikova, L., On Cambria sibirica Neckaja & Ivanova; 9-12
Wimanicharion matthewi (Wiman); 17-20
Wouters, K., On Bathycythere comitatus Wouters sp. nov.; 39-42
Wouters, K., On Palmoconcha bitruncata (Brady); 43-46
Stereo-Atlas of Ostracod Shells 21, 129
Index, Volume 21, 1994 (3 of 3)
(113.2)
(113.22)
(113.23)
(113.312)
(113.331)
(113.333)
(113.45)
(113.52)
(113.61)
(116.22)
(116.312)
(116.313)
Index; Geological Horizon
See 1 (1) 5-22 (1973) for explanation of the Schedules in the Universal Decimal Classification
Cambrian:
Wimanicharion matthewi ; 17-20
Lower Cambrian:
Cambria melnikovae; 13-16
Cambria sibirica; 9-12
Middle Cambrian:
Vestrogothia longispinosa; 21-26
Middle Ordovician:
Garciana jaanussoni; 123-126
Moeckowia rava; 5-8
Primitiella minima; 119-122
Trispinatia rusconii; 1-4
Lower Silurian:
Ploteristes sylvesterbradleyi ; 115-118
Upper Silurian:
Poloniella adamczaki; 111-114
Upper Devonian:
Kuzminaella venusta; 47-50
Upper Carboniferous:
Knoxina lecta ; 51-58
Lower Permian:
Knoxina lecta; 51-58
Middle Jurassic:
Theriosynoecum fimbriachela; 107-110
Barremian:
Cy pride a sylvesterbradleyi; 103-106
Albian:
Exposterocythere margaritata; 91-94
Exposterocythere queenslandensis; 95-98
Majungaella ticka; 99-102
(116.331) Cenomanian:
Exposterocythere margaritata; 91-94
Exposterocythere queenslandensis; 95-98
Majungaella ticka; 99-102
(116.333.3) Santonian:
Parahemingwayella ginginensis; 31-34
(118.13) Palaeocene:
Pariceratina ubiquita; 79-86
(118.14) Eocene:
Pariceratina ubiquita; 79-86
(118.15) Oligocene:
Pariceratina ubiquita; 79-86
(118.21) Miocene:
Bathycythere comitatus; 39-42
(118.213) Tortonian:
Chrysocythere buncensis; 87-90
(118.22) Pliocene:
Palmoconcha bitruncata; 43-46
Sagmatocythere paravariolata; 75-78
Semicytherura parasella; 35-38
(119.1) Pleistocene:
Cytheropteron abyssorum; 63-70
Kuiperiana bathymarina; 27-30
(119.9) Recent:
Bythocythere bradleyi; 59-62
Carinocythereis batei; 71-74
Cytheropteron abyssorum; 63-70
(265)
(265.7)
(267.7)
(411)
(415)
(420)
(430)
(485)
(492)
(493)
(53)
(57)
Index; Geographical Location
See 1 (1) 5-22 (1973) for explanation
Pacific Ocean:
Pariceratina ubiquita; 79-86
South-West Pacific:
Kuiperiana bathymarina; 27-30
South-east Indian Ocean:
Cytheropteron abyssorum; 63-70
Scotland:
Theriosynoecum fimbriachela; 107-110
Ireland:
Bythocythere bradleyi; 59-62
England:
Ploteristes sylvesterbradleyi; 115-118
Sagmatocythere paravariolata; 75-78
Semicytherura parasella; 35-38
Germany:
Moeckowia rava; 5-8
Vestrogothia longispinosa; 21-26
Sweden:
Vestrogothia longispinosa; 21-26
Wimanicharion matthewi; 17-20
Netherlands:
Bathycythere comitatus; 39-42
Belgium:
Palmoconcha bitruncata : 43-46
Saudi Arabia:
Carinocythereis batei; 71-74
Asiatic Russia:
Cambria melnikovae; 13-16
Cambria sibirica; 9-12
Kuzminaella venusta; 47-50
of the Schedules in the Universal Decimal Classification
(664) Sierra Leone:
Chrysocythere buncensis; 87-90
(672.4) Congo:
Cypridea sylvesterbradleyi; 103-106
(673) Angola:
Cypridea sylvesterbradleyi; 103-106
(764) Texas:
Knoxina lecta: 51-58
(766) Oklahoma:
Primitiella minima; 119-122
(768) Tennessee:
Poloniella adamczaki; 111-114
(781) Kansas:
Knoxina lecta; 51-58
(789) New Mexico:
Knoxina lecta; 51-58
(82) Argentina:
Garciana jaanussoni; 123-126
Trinspinatia rusconii; 1-4
(941) Western Australia:
Parahemingwayella ginginensis; 31-34
(943) Queensland:
Exposterocythere margaritata; 91-94
Exposterocythere queenslandensis; 95-98
Majungaella ticka; 99-102
Blackpool Typesetting
Services Limited
TYPESETTERS OF
TECHNICAL BOOKS AND JOURNALS
are pleased to be associated with
the production of this journal
132 Highfield Road ■ Blackpool FY4 2HH
Telephone 01253 404208 Fax 01253 408261
Robert Horne Paper
is proud to be
the suppliers of
paper for the
Stereo-Atlas of
Ostracod Shells
U3 Robert Horne
Huntsman House, Mansion Close, Moulton Park, Northampton NN3 6LA
Laserscan Photolitho
are pleased to be involved
with this prestigious publication
LASERSCAN PHOTOLITHO
Boundary Road,
Lytham,
Lancashire FY8 5HU
Tel: Lytham (01253) 739282
Fax: (01253) 737641
BPC BLACKPOOL LTD
COLOUR PRINTERS
are pleased to be associated with
this Publication and wish every success
for the future of the
Stereo-Atlas of Ostracod Shells
Stanley Road, Blackpool,
Lancashire FY1 4QN
Telephone 01253 22351
Facsimile 01253 295733
A MEMBER OF THE BRITISH PRINTING COMPANY LTD
Stereo- Atlas of Ostracod Shells: Vol. 21, Part 2
Papers in Honour of P.C. Sylvester-Bradley
CONTENTS
On Bythocythere bradleyi Athersuch, Horne & Whittaker; by J. Athersuch, D.J.
Horne & J.E. Whittaker.
On Cytheropteron abyssorum Brady; by V. Passlow & M.A. Ayress.
On Carinocythereis batei Jain; by A.A.F. Al-Furaih.
On Sagmatocythere paravariolata Maybury sp. nov.; by C.A. Maybury.
On Pariceratina ubiquita Boomer sp. nov.; by I. Boomer.
On Chrysocythere buncensis Keen sp. nov.; by M.C. Keen.
On Exposterocythere margaritata (Krommelbein); by R.C. Whatley, S. Ballent &
C.A. Maybury.
On Exposterocythere queenslandensis (Krommelbein); by R.C. Whatley, S. Ballent &
C.A. Maybury.
On Majungaella ticka (Krommelbein); by R.C. Whatley, S. Ballent & C.A. Maybury.
On Cypridea sylvesterbradleyi Bate sp. nov.; by R.H. Bate.
On Theriosynoecum fimbriachela Wakefield; by M.I. Wakefield.
On Poloniella adamczaki Lundin sp. nov.; by R.F. Lundin.
On Ploteristes sylvesterbradleyi Siveter gen. et sp. nov.; by D.J. Siveter.
On Primitiella minima (Harris); by M. Williams, R.F. Lundin & D.J. Siveter.
On Garciana jaanussoni (de Garcia & Proserpio); by R.E.L. Schallreuter.
Index for Volume 21, (1994).
Prepaid annual subscription (valid for Volume 21, 1994)
Individual subscription £30.00 or US $60.00 for 2 parts (post free)
Institutional subscription £80.00 or US $135.00 for 2 parts (post free)
Back volumes:
Vol. 1 (4 Parts): £20.00;
Vol. 2 (4 Parts): £28.00;
Vol. 3 (2 Parts): £24.00;
Vol. 4 (2 Parts): £30.00;
Vol. 5 (2 Parts): £32.00;
Vol. 6 (2 Parts): £40.00;
Vol. 7 (2 Parts): £40.00;
Vol. 8 (2 Parts): £60.00;
Vol. 9 (2 Parts): £60.00;
Vol. 10 (2 Parts): £60.00;
Vol. 11 (2 Parts): £60.00;
Vol. 12 (2 Parts): £60.00;
Vol. 13 (2 Parts): £60.00;
Vol. 14 (2 Parts): £60.00;
Vol. 15 (2 Parts): £60.00;
Vol. 16 (2 Parts): £60.00;
Vol. 17 (2 Parts): £60.00;
Vol. 18 (2 Parts): £60.00;
Vol. 19 (2 Parts): £75.00;
Vol. 20 (2 Parts): £80.00;
price per Part: £5.00
price per Part: £7.00
price per Part: £12.00
price per Part: £15.00
price per Part: £16.00
price per Part: £20.00
price per Part: £20.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £30.00
price per Part: £37.50
price per Part: £40.00
Postage extra in sales of all back Parts
No trade discount is allowed on subscription rate
Orders should be addressed to: Dr J.E. Whittaker,
Department of Palaeontology,
The Natural History Museum,
Cromwell Road, South Kensington,
London SW7 5BD, U.K.
Cheques should be made payable to B.M.S. (Stereo- Atlas Account)
SPECIAL OFFER
Volumes 1-20 (1973-93) complete for £450/$750
for new subscribers to the Atlas