A Stereo -Atlas of Ostracod Shells
edited by R. H. Bate, D. J. Horne, J. W. Neale,
and David J. Siveter
Volume 13, Part 1; 30th May, 1986
Published by the British Micropalaeontological Society, London
Editors
Dr R.H. Bate, SSI (UK) Ltd., Tannery House, Tannery Lane, Send, Woking, Surrey GU23 7EF.
Dr D. J. Horne, Department of Geology, City of London Polytechnic, Walburgh House, Bigland Street,
London El 2NG.
Prof. J.W. Neale, Department of Geology, The University, Hull HU6 7RH.
Dr David J. Siveter, Department of Geology, The University, Leicester LEI 7RH.
Editorial Board
Dr G. Bonaduce, Stazione Zoologica, 80121 Napoli, Italy.
Dr J.-P. Colin, Esso Production Research - European, 213 Cours Victor Hugo, 33321 Begles, France.
Dr P. De Deckker, Research School of Pacific Studies, Australian National University, PO Box 4,
Canberra ACT 2600, Australia.
Dr D. van Harten, Universiteit van Amsterdam, Geologisch Instituut, Nieuwe Prinsengracht 130,
Amsterdam, The Netherlands.
Dr I. Purper, Departamento de Paleontologia e Estratigrafia, UFRGS, 90 000 Porto Alegre RS, Brazil.
Dr R.E.L. Schallreuter, Universitat Hamburg, Geologisch -Palaontologisches Institut, Bundesstrasse
55, D 2000 Hamburg 13, West Germany.
Officers of the British Micropalaeontological Society
Chairman Prof. B.M. Funnell, School of Environmental Sciences, University of East Anglia, Norwich
NR4 7TJ.
Secretary Dr P.P.E. Weaver, Institute of Oceanographic Sciences, Brook Road, Wormley, Godaiming,
Surrey GU8 5UB. Tel: 0428-79 4141.
Treasurer Dr J.E. Whittaker, Department of Palaeontology, British Museum (Natural History),
Cromwell Road, London SW7 5BD. Tel: 01-589 6323.
Journal Editor Dr. L.M. Sheppard, SSI (U.K.) Limited, Chancellor Court, 20 Priestly Road, Guildford,
Surrey GU2 5YL. Tel: (0483) 506605.
Newsletter Editor Dr R.L. Austin, Department of Geology, University of Southampton, Southampton
S09 5NH. Tel: (0703) 559122/557941
Conodont Group Chairman Dr R.J. Aldridge, Department of Geology, University of Nottingham,
University Park, Nottingham NG7 2RD.
Secretary Dr P.M. Smith, Department of Geology, University of Nottingham, University Park,
Nottingham NG7 2RD. Tel: (0602) 506101.
Foraminifera Group Chairman Dr P. Copestake, Britoil, 150 St. Vincent Street, Glasgow G2 5LJ.
Secretary Dr D.J. Shipp, Robertson Research Int. Limited, Ty’n-y-Coed, Llanrhos, Llandudno LL30
ISA. Tel: (0492) 81811.
Microplankton Group Chairman Dr G.L. Eaton, BP Research Centre, Chertsey Road, Sunbury-on-
Thames, Middlesex TW16 7LN.
Secretary Dr J.B. Riding, British Geological Survey, Keyworth, Nottingham NG12 5GG. Tel: (06077)
6111.
Ostracod Group Chairman Dr D.J. Horne, Geology Department, City of London Polytechnic,
Walburgh House, Bigland Street, London El 2NG.
Secretary Dr C. Maybury, Department of Geology, University College of Wales, Aberystwyth, Dyfed
SY23 3DB. Tel: (0970) 3111.
Palynology Group Chairman Dr M.C. Boulter, N.E. London Polytechnic, Romford Road. London E15
4LZ.
Secretary Dr J.E. A. Marshall, Department of Geology, The University, Southampton S09 5NH. Tel:
(0703) 559122.
Calcareous Nannofossil Group Chairman Mr M. Jakubowski, Robertson Research Int. Limited,
Ty’n-y-Coed, Llanrhos, Llandudno, Gwynedd LL30 ISA.
Secretary Dr J. Crux, BP Research Centre, Chertsey Road, Sunbury on Thames, Middlesex. Tel:
(09327) 63062.
Instructions to Authors
Contributions illustrated by scanning electron micrographs of Ostracoda in stereo-pairs are invited.
Format should follow the style set by the majority of papers in this issue. Descriptive matter apart from
illustrations should be cut to a minimum: preferably each plate should be accompanied by one page of
text only. 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 Dr David J. Siveter.
The front cover shows left valves of a tecnomorph (upper figure; PMO 113.64) and a female (PMO
113.169) of Slependia armata (Henmngsmoen. 1954); from the Llandovery Series, Silurian, at Slependen
in Asker, Norway. Both specimens are in the Paleontologisk Museum, University of Oslo. See Pollicott
& Siveter, Stereo-Atlas of Ostracod Shells, 12 (17), 85-92. 1985.
Printed in the UK by BPCC Northern Printers Ltd.. Stanley Road. Blackpool FY1 4QN
Stereo-Atlas of Ostracod Shells 13 (1) 1-8 (1986) Cytheretta semipunctata (1 of 8)
595.337.14 (118.15) (430.1 : 161.006.51) : 551.351 + 552.51
ON CYTHERETTA ( CYTHERETTA ) SEMIPUNCTATA (BORNEMANN)
by Roseline H. Weiss
(Geologisches Institut, University of Cologne, Germany)
Cytheretta (Cytheretta) semipunctata (Bornemann. 1855)
Bairdia semipunctata sp. nov. J. G. Bornemann. Z. dt. geol. Ges.. 7. 359. pi. 21. figs. la-c.
Cytheretta semipunctata (Bornemann): E. Triebel. Notizbl. Hess. L.-Amt Bodenforsch . . 6. 27. pi. 5, figs. 30a, b.
Cytheretta semipunctata (Bornemann): C. Ellermann. Fortschr. Geol. Rheinld. West f.. 1. 210.
Cytheretta semipunctata (Bornemann): F. Goerlich. Fortschr. Geol. Rheinld. West/.. 1. 216.
Cytheretta semipunctata (Bornemann); van den Bold. Neues Jb. Geol. Paldont. Ml:.. 1963, 114.
Cytheretta semipunctata (Bornemann); M. Faupel. Gottinger Arb. Geol. Paldont.. 17. 20. pi. 2, figs, la, b.
Cytheretta semipunctata (Bornemann); H. Uffenorde. Neues Jb. Geol. Paldont. Ml:.. 1980. 152, pi. 3, fig. 18.
Cytheretta ( Cytheretta ) semipunctata (Bornemann): R. H. Weiss. Palaeontographica. Abt. A. 182 (1-3). 60, pi. 7. figs.
1-6, pi. 8. figs. 1-9. text-fig. 5.
1855
1952
? 1958
? 1958
? 1963
1975
non 1981
1983
Explanation of Plate 13, 2
Fig. 1, cf car., ext. dors. (GIK 932-1330, 115pm long); fig. 2, $ car., ext. vent. (GIK 932-1336. 788 pm long).
Scale A (100/iun; X 120), figs. 1, 2.
Stereo-Atlas of Ostracod Shells 13, 3 Cytheretta semipunctata (3 of 8)
Type specimens:
Type locality:
Figured specimens:
The Ostracoda from the collection of Bornemann are presumed lost.
Hermsdorf near Berlin, East Germany; middle Oligocene.
Geologisches Institut, University of Cologne (GIK), nos. 932-1327 (cf RV: PI. 13, 8, fig. 2),
932-1328 (Cf LV: PI. 13, 6, fig. 2), 932-1330 (cf car.: PI. 13, 2, fig. 1), 932-1332 ($> RV: PI. 13, 8,
fig. 1), 932-1333 (9 LV: PI. 13, 6, fig. 1), 932-1334 (cf RV: PI. 13, 4, fig. 2), 932-1335 (cf LV: PI.
13, 4, fig. 1), 932-1336 ($ car.: PI. 13, 2, fig. 2). 932-1332 and 932-1333, 932-1327 and 932-1328,
and 932-1334 and 932-1335 represent both valves of single carapaces.
All specimens were collected by Prof. E. K. Kempf in 1961 at a depth of 54.2-55.5 m from
shaft Tonisberg near Krefeld, Germany (German Nat. Grid Ref.: R 34033, H 97555; long. 6° 29'E.
lat. 51° 25'N); upper Oligocene, Sphenolithus ciperoensis zone (NP25) according to Benedek &
Muller (Neues Jb. Geol. Paldont. Mh., 1974, 388); fine sand (grain size 0.2-0. 06m = 92.5%) with
abundant molusca and foraminifera according to Kempf ( Niederrhein , 35, fig. 2, 1968); shallow
marine (5-20m water depth) according to Goerlich ( Fortschr . Geol. Rheinld. Westf., 1, 220, 1958).
Explanation of Plate 13, 4
Fig. 1, cf LV, int. lat. (GIK 932-1335, 788/u.m long); fig. 2, cf RV, int. lat. (GIK 932-1334, 115pm long).
Scale A (100 ^m; x 120), figs. 1, 2.
Cytheretta semipunctata (2 of 8)
Stereo- Atlas of Ostracod Shells 13, 4
Cytheretta semipunctata (4 of 8)
Stereo- Atlas of Ostracod Shells 13, 2
Stereo-Atlas of Ostracod Shells 13, 5
Cytheretta semipunctata (5 of 8)
Size:
(A)
(B)
Table 1. Measurements on specimens of C. semipunctata N = no. of specimens; x = mean; L = length; H
= height; W = width; A = valves, B = carapaces.
Diagnosis: Carapace strong. In dorsal view subovate with somewhat acuminate anterior end. In side view
subrectangular. Anterior end obliquely truncated above, obtusely pointed subventral. Posterior
end somewhat upwardly rounded. Left valve distinctly larger than the right one. Longitudinal rows
of coarse pits are disposed along the middle of both valves. Posterior part covered with strong
developed reticulation. Remainder of surface smooth. Posteriorly a narrow vestibulum is
detectable.
Explanation of Plate 13, 6
Fig. 1, $ LV, ext. lat. (GIK 932-1333, 800 pm long); fig. 2, cf LV, ext. lat. (GIK 932-1328. 800 /um long).
Scale A (100/u.m; X 107), figs. 1, 2.
Stereo- Atlas of Ostracod Shells 13, 7 Cytheretta semipunctata (7 of 8)
Remarks:
Distribution:
Acknowledgement:
Sexual dimorphism pronounced, the males being lower and, in dorsal view, narrower than the
females, but almost of the same length. Two types of marginal pore canals are present in the
posterior end of the valves: the first type is represented by a small number (mostly five) of long and
large pore canals similar to those of the anterior and ventral parts of the margin; the second one,
however, by numerous short, small and closely spaced pore canals. The two types of marginal pore
canals reach the outer surface of the valves in two parallel lines of openings, both distally of the
flange (discussed in detail by Weiss 1983, op. cit.).
Middle Oligocene: Hermsdorf near Berlin, Germany (Bornemann 1855, op. cit.).
Upper Oligocene: Doberg near Biinde; Dieckholzen near Hildesheim; Shaft Rumeln near
Krefeld; Astrup near Osnabriick; Niederkaufungen near Kassel, Germany (Triebel 1952, op. cit.);
Pohlkotte near Osnabriick, Germany (Hiltermann 1970); Shaft Hollkopf near Glimmerode
(Kassel Basin), Germany (Faupel 1975, op. cit.)'. Shaft Rossenray (Lower Rhine Basin), Germany
(Goerlich 1958, van den Bold 1963, op. cit.); Shaft Kapellen (Lower Rhine Basin), Germany
(Ellermann 1958, op. cit.); Shaft Tonisberg (Lower Rhine Basin), Germany (Weiss 1983 op. cit.,
and herein).
Thanks are due to the Deutsche Forschungsgemeinschaft for providing the Cambridge Stereoscan
180.
Explanation of Plate 13, 8
Fig. 1, 9 RV, ext. lat. (GIK 932-1332, 775/um long); fig. 2, cf RV, ext. lat. (GIK 932-1327, 775pm long).
Scale A (100/u.m; X 107), figs. 1, 2.
Stereo-Atlas of Ostracod Shells 13, 6
Cytheretta semipunctata (6 of 8)
Cytheretta semipunctata (8 of 8)
Stereo- Atlas of Ostracod Shells 13, 8
Stereo-Atlas of Ostracod Shells 13 (2) 9-16 (1986)
595.337.14 (118.15) (430.1 : 161.006.51) : 551.351 + 552.51
Cytheretta jurinei ( 1 of 8)
ON CYTHERETTA ( CYTHERETTA ) JURINEI (V. MUNSTER)
by Roseline H. Weiss
(Geologisches Institut, University of Cologne, Germany)
Cytheretta (Cytheretta) jurinei (v. Munster, 1830)
? 1830
? 1835
non 1838
1863
? 1894
non 1950
1952
1975
1983
Cythere Jurinii sp. nov. v. Munster, Jb. Min. Geogn. Geol. Petref.-Kunde , 1, 62.
Cytherina Jurinii (v. Munster); v. Munster, Jb. Min. Geogn. Geol. Petref.-Kunde. 6. 445.
Cytherina Jurinii (v. Munster); F. A. Roemer. Neues Jb. Min. Geogn. Geol. Petref.-Kunde , 1838, 516, pi. 6, fig. 12.
Cythere Jurinei (v. Munster); O. Speyer. Ber. Ver. Naturk. Cassel , 15, pi. 2, figs. 5a-d.
Cythere Jurinei (v. Munster); E. Lienenklaus, Z. dt. geol. Ges., 46, 175.
Cytheretta jurinei (v. Munster); G. Ruggieri. Giorn. Geol., (Ser. 2), 21 (1949), 11. text-fig. 3, pi. 1, fig. 11.
Cytheretta jurinii (v. Munster); E. Triebel, Notizbl. hess. L.-Amt Bodenforsch., 6, 23, pi. 3, figs. 16, 17.
Cytheretta jurinii (v. Munster); M. Faupel, Gottinger Arb. Geol. Paldont., 17, 18, pi. 2, figs. 2a, b.
Cytheretta (Cytheretta) jurinei (v. Munster); R. H. Weiss, Palaeontographica, Abt. A, 182 (1-3), 54. pi. 4, figs. 1-6, pi. 5,
figs. 1-8, pi. 6, figs. 1-7, text-figs. 2-4.
Type specimens: The Ostracoda from the collection of v. Munster are presumed lost.
Astrup near Osnabriick, Germany; upper Oligocene.
Geologisches Institut, University of Cologne (GIK), nos. 932-1314 (cf LV: PI. 13, 10. fig. 2),
932-1315 (cf RV: PI. 13, 16, fig. 2), 932-1317 (cf RV: PI. 13, 14, fig. 2), 932-1319 (9 RV: PI. 13.
16, fig. 1), 932-1321 (9 RV: PI. 13, 14, fig. 1), 932-1322 (9 car.: PI. 13, 12, fig. 1), 932-1323 (cf
car.: PI. 13, 12, fig. 2), 932-1324 (cf car.: PI. 13, 10, fig. 1). Nos. 932-1314 and 932-1315 represent
both valves of a single carapace.
Type locality
Figured specimens:
Explanation of Plate 13, 10
Fig. 1, cf car., ext. dors. (GIK 932-1324, 1325/um long); fig. 2, cf LV, int. lat. (GIK 932-1314. 1338yum long).
Scale A (lOO/xm; x71), figs. 1, 2.
Stereo- Atlas of Ostracod Shells 13, 11 Cytheretta jurinei (3 of 8)
Figured specimens: All specimens were collected by Prof. E. K. Kempf in 1961 at a depth of 54.2-55.5 m from shaft
(contd.) Tonisberg near Krefeld, Germany (German Nat. Grid Ref.: R 34033, H 97555; long. 6° 29'E, lat.
51° 25'N); upper Oligocene, Sphenolithus ciperoensis Zone (NP25) according to Benedek &
Muller (Neues Jb. Geol. Paldont. Mh., 1974, 388); fine sand (grain size 0.2-0. 06mm = 92.5%) with
abundant mollusca and foraminifera according to Kempf ( Niederrhein , 35. fig. 2, 1968); shallow
marine (5-20m water depth) according to Goerlich ( Fortschr . Geol. Rheinld. Westf., 1. 220. 1958).
Text-fig. 1. Cytheretta (C). jurinei (v.
Munster, 1830); cf RV, in-
ternal view, structure of
margin, s: selvage; fl:
flange; l.o.c.: line of con-
crescence; i.m.: inner mar-
gin; v.m.: valve margin.
Explanation of Plate 13, 12
Fig. 1, 9 car., ext. vent. (GIK 932-1322, 1275/um long); cf car., ext. vent. (GIK 932-1323, 1313/u.m long).
Scale A (100/xm; X73), figs. 1, 2.
Cytheretta jurinei (4 of 8)
Stereo-Atlas of Ostracod Shells 13, 12
Stereo- Atlas of Ostracod Shells 13, 10
Cytheretta jurinei (2 of 8)
Table 1. Measurements on specimens of C. jurinei (N = no. of specimens; x = mean; L = length; H =
height; W = width); A = valves, B = carapaces.
Diagnosis: Carapace strong. In dorsal view elongate - ovate with somewhat acuminate anterior end and beak
- shaped posterior end. In side view elongate - ovate. Left valve distinctly larger than right valve.
Surface of the valves smooth but with longitudinal rows of pits in the middle. Anteriorly and
posteriorly vestibules are present.
Explanation of Plate 13, 14
Fig. 1, $ RV, ext. lat. (GIK 932-1321, 1288/xm long); cf RV, ext. lat. (GIK 932-1317, 1300pim long).
Scale A (lOO/urn; x74), figs. 1, 2.
Stereo-Atlas of Ostracod Shells 13, 15 Cytheretta jurinei (7 of 8)
Remarks:
Distribution:
Acknowledgement:
Sexual dimorphism pronounced, the males being more elongate, somewhat higher and. in dorsal
view, slightly more tumid than the females. On the right valve of the male there is a strong
developed ventral prolongation of the flange, which is missing on the female. Differences
discussed in detail by Weiss (1983, op. cit.). Two types of marginal pore canals are present in the
posterior end of the valves: the first type is represented by 8 to 12 long and large pore canals
similar to those of the anterior and ventral part of the margin, the second one however, by
numerous short, small and very closely packed pore canals. The two types of marginal pore canals
reach the shell surface in two parallel lines of openings, both distally of the flange.
Upper Oligocene: Astrup near Osnabriick, Germany (v. Munster 1830, Lienenklaus 1894, Triebel
1952, op. cit.); Wilhelmshohe near Kassel, Germany (v. Munster 1830, op. cit.); Ahnegraben and
Niederkaufungen (Kassel Basin), Germany (Speyer 1863, Lienenklaus 1894, op. cit.); Biinde,
Neuer Wirth near Osnabriick; Gottentrup, Freden, Giintersen near Gottingen; Erlenloch near
Kassel; Krefeld, Germany (Lienenklaus 1894, op. cit.); Hollkopf near Glimmerode (Kassel
Basin), Germany (Faupel 1975, op. cit.); Shaft Kapellen (Lower Rhine Basin), Germany
(Ellermann 1958); Shaft Rossenray (Lower Rhine Basin), Germany (Goerlich 1958); Shaft
Tonisberg (Lower Rhine Basin), Germany (Weiss 1983, op. cit., and herein.).
Middle Oligocene: Harleshausen (Kassel Basin), Germany (Speyer 1863, Lienenklaus 1894, op.
cit.).
Lower Oligocene: Brandhorst near Biinde, Germany (Lienenklaus 1894, op. cit.).
Thanks are due to the Deutsche Forschungsgemeinschaft for providing the Cambridge Stereoscan
180.
Explanation of Plate 13, 16
Fig. 1, $ RV, int. lat. (GIK 932-1319, 1250/u.m long); cf RV, int. lat. (GIK 932-1315, 1300 /am long).
Scale A (100 yum; x74), figs. 1, 2.
Stereo- Atlas of Ostracod Shells 13,14
Cytheretta jurinei (6 of 8)
Cytheretta jurinei (8 of 8)
Stereo-Atlas of Ostracod Shells 13, 16
Stereo-Atlas of Ostracod Shells 13 (3) 17-20 (1986) Paracytheromorpha rimafossa (1 of 4)
595.337.14 (118.22) (420.006.50 + 44 : 162.002.48) : 551.351 + 552.51 + 552.52
ON PARACYTHEROMORPHA RIMAFOSSA MAYBURY & WHATLEY
gen. et sp. nov.
by Caroline A. Maybury & Robin C. Whatley
(University College of Wales, Aberystwyth)
Derivation of name:
Diagnosis:
Remarks:
Genus PARACYTHEROMORPHA gen. nov.
Type-species: Paracytheromorpha rimafossa sp. nov.
Greek; like Cytheromorpha Hirschmann, 1909 ( Meddn Soc. Fauna Flora fenn., 35, 290-292).
Very small to medium sized; elongate, subrectangular to elliptical in lateral view. Anterior and
posterior margins rounded. Micropunctate to coarsely reticulate, some species celate. Eye
tubercle/spot absent. Hinge in right valve: smooth groove and elongate posterior bar smooth or
dentate. No anterior terminal element. Left valve has complementary structures. Muscle scars just
below mid-point: curved row of four closely adjacent or contiguous adductors + “c”-shaped
frontal open dorsally. Fulcral point crescentic, usually a weakly incised, circular depression
between adductor row and frontal scar. Sexual and precocious sexual dimorphism pronounced.
Paracytheromorpha differs from Cytheromorpha by the lack of an eye spot or tubercle. Also, in
Cytheromorpha the hinge is gongylodont. The hinge of Paracytheromorpha is reminiscent of that of other
loxoconchids such as Elofsonia Wagner, 1957 (Sur les Ostracodes du Quaternaire recent des Pays-bas et leur
utilisation dans I'etude geologique des depots Holocenes, Mouton & Co., The Hague, 71; see also Whittaker,
J. E., Stereo-Atlas Ostracod Shells, 1, 193-204) and Phlyctocythere Keij, 1958 {K. Nederl. Akad. Wetensch.
Proc., ser. B, 61(1), 72). Nine other Upper Pliocene species (six from St. Erth, England and NW France and
three confined to St. Erth) are assigned to Paracytheromorpha (see C. Maybury, Taxonomy, Palaeoecology
and Biostratigraphy of Pliocene Benthonic Ostracoda from St. Erth and NW France, unpubl. PhD thesis,
Univ. Wales. 1, 335-345; 2, pi. 29, figs. 1-30, 1985). ICythere sp. of Breman ( The distribution of Ostracods in
the bottom sediments of the Adriatic Sea, PhD thesis, Univ. Amsterdam, 48, pi. 6, fig. 81, 1976),
Cytheromorpha nana Bonaduce, Ciampo & Masoli, 1975 ( Publ . Staz. zool. Napoli , 40, 114, pi. 70, figs. 9-11)
Explanation of Plate 12, 18
Fig. 1, $ LV, ext. lat. (holotype, OS 12827, 540 pm long); fig. 2, cf LV, ext. lat. (paratype, OS 12828, 560 pm long); fig. 3, cf RV, ext.
lat. (paratype, OS 12829, 550/u.m long). Scale A (200/u.m; xlll), figs. 1-3.
Stereo-Atlas of Ostracod Shells 13, 19 Paracytheromorpha rimafossa (3 of 4)
Remarks: (cont.) and Ostracoda incertae Genera of Barbeito-Gonzalez (Mitt. hamb. zool. Mus. Inst., 67, 321, pi. 43, figs. Id.
2d, 1971) are tentatively included in Paracytheromorpha on the basis of external morphology; no internal
descriptions of these species have been published.
Paracytheromorpha is assigned to the Loxoconchidae because of its external resemblance to
Cytheromorpha and its possession of sieve-type normal pores and simple, straight radial pore canals. In
addition, its muscle scar configuration and hinge structure are not unlike other members of the family.
Stratigraphical range: Miocene, Pliocene, ?Pleistocene - Recent.
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Diagnosis:
Remarks:
Distribution:
Paracytheromorpha rimafossa sp. nov.
British Museum (Nat. Hist.) no. OS 12827, 9 LV.
[Paratypes: British Museum (Nat. Hist.) nos. OS 12828 - OS 12832],
Blue Clay, sample no. 29, NW corner of Vicarage Pit, St. Erth, Cornwall, England (Nat. Grid
Ref. SW 556352); Upper Pliocene.
Latin, alluding to the slit-like openings to the fossae.
British Museum (Nat. Hist.) nos. OS 12827 (holotype, $ LV: PI. 13, 18, fig. 1), OS 12828 (paratype, cf LV:
PI. 13, 18, fig. 2), OS 12829 (paratype, cf RV: PI. 13, 10, fig. 3), OS 12830 (paratype, cf LV: PI. 13, 20, figs.
1 , 4, 5), OS 12831 (paratype, $ juv. LV: PI. 13, 20, fig. 2), OS 12832 (paratype, cf juv. LV: PI. 13, 20, fig. 3).
OS 12830 is from the type locality; OS 12828, OS 12829, OS 12831 and OS 12832 are from the shell rich sands
of Le Temple du Cerisier, SW of Rennes, NW France; Redonian, Upper Pliocene.
Medium-sized, subrectangular alaeform Paracytheromorpha with a celated, reticulate ornament.
P. rimafossa is similar to Breman’s ICythere sp. from the Pleistocene to Holocene of the Adriatic
(1976, op. cit.), but in the latter species the fossae do not have slit-like openings.
Upper Pliocene deposits of St. Erth, Cornwall, England (sample nos. 1-4, 7, 14, 16, 18, 21, 23, 25-29; see C.
Maybury, op. cit., 1, 3-6, for sample details) and Redonian deposits of Beugnon (sample no. 2), Le Bosq
d'Aubigny and Apigne (Gite d’Apigne Borehole II, Le Temple du Cerisier) NW France (see J.-P. Margerel,
Les Foraminiferes du Redonien. Systematique, Repartition stratigraphique, Paleoecologie, Nantes, 1, 8-26,
1968 for geographical, stratigraphical and sample details). Juvenile specimens have also been noted by the
authors in the Lower Miocene of the Bazadais region, SW France.
Explanation of Plate 12, 20
Figs. 1, 4, 5, cf LV (paratype, OS 12830, 590 pm long): fig. 1, int. lat.; fig. 4, ant. hinge element; fig. 5, post, hinge element. Fig. 2, $
juv. LV, ext. lat. (paratype, OS 12831, 390 /am long). Fig. 3, cf juv. LV, ext. lat. (paratype, OS 12832, 400 /am long).
Scale A (200/um; xlll), figs. 1-3; Scale B (40/um; x 555), figs. 4, 5.
Stereo- Atlas of Ostracod Shells 13, 18
Paracytheromorpha rimafossa (2 of 4)
la
2a
3a
Stereo- Atlas of Ostracod Shells 13, 20
Paracytheromorpha rimafossa (4 of 4)
Stereo-Atlas of Ostracod Shells 13 (4) 21-24 ( 1986) Retinoda sulcata (1 of 4)
595.336.12 (113.313) (430.2 : 161.011.50) : 551.35 + 552.55
ON RETINODA SULCATA (KNUPFER)
by Roger E. L. Schallreuter
(University of Hamburg, Federal Republic of Germany)
Genus RETINODA gen. nov.
Type-species: Ulrichia varionoda sulcata Kniipfer, 1968
Derivation of name:
Diagnosis:
Remarks:
Latin rete, net and nodus, swelling; alluding to the reticulated nodes.
Small to medium-sized genus of bolliids. Two nodes of different size at the dorsal border; posterior
node larger. Valves have an entire pseudovelum. Both the lateral surface and nodes are punctate
or reticulate.
Ulrichia Jones ( Q . Jl. geol. Soc. Lond., 46, 543, 1890; type-species: Ulrichia conradi from the
Devonian of Canada) is similar but differs by its non-reticulate nodes.
Retinoda sulcata (Kniipfer, 1968)
1968 Ulrichia varionoda sulcata n.ssp., J. Kniipfer, Freiberger ForschHft., (C), 234, 5, 6, 18, pi. 1, figs. 3, 5.
1970 Ulrichia varionoda sulcata Kniipfer; H. Jordan, Ibid., 265, 8, 29.
Holotype: Geologisches Institut, Bergakademie Freiberg, Sachsen, German Democratic Republic; no.
45/1012, LV.
Explanation of Plate 13, 22
Fig. 1, LV, ext. lat. (GPIMH 3250, 0.55mm long. Figs. 2, 3, LV (GPIMH 3251, 0.56mm long): fig. 2, ext. dors, obi.; fig. 3, ext. lat.
Scale A (100/u.m; x 120), figs. 1-3.
Stereo-Atlas of Ostracod Shells 13, 23 Retinoda sulcata (3 of 4)
Type locality:
Figured specimens:
Diagnosis:
Remarks:
Distribution:
Bergstollen adit of the Gebersdorf Iron-ore mine, Thuringia, German Democratic Republic; lat.
50° 32'N, long. 11° 17'E; limestone layer in the upper layer of the Upper Ore Horizon (Oberes
Lager des Oberen Erzhorizontes = uppermost Caradoc, zone 13), Grafenthal series (J. Kniipfer,
Ber. geol. Ges. DDR 10 (2), 203, 1965).
Geologisch-Palaontologisches Institut und Museum. University of Hamburg (GPIMH) nos. 3250
(LV: PI. 13, 22, fig. 1), 3251 (LV: PI. 13, 22, figs. 2, 3), 3252 (RV: PI. 13, 24. fig. 1) and 3253 (RV:
PI. 13, 24, figs. 2, 3).
All the figured specimens are from the limestone layer in the Upper Ore Horizon of the
former Wittmannsgereuth open-pit iron-ore mine, on the ‘Breiten Berg’ near Saalfeld, Thuringia,
German Democratic Republic (H. Blumenstengel et al., Geol. Ges. DDR Exkursionsfuhrer
Herbsttagung 1963, 5); lat. 50° 39'N, long. 11° 19.5'E; collected by the author in about 1965. All
the material is coarsely silicified; Caradoc Series, Ordovician.
Length up to 0.56mm. Nodes relatively large. Between the nodes there is a weak sulcus (sulcal
depression). Lateral surface punctate.
Retinoda celebrata (Gailite) ( Palaeont . Stratigr. Baltic Byelorussia 3, 45, 1971) is much larger
(1.4mm long) and possesses smaller nodes and a reticulate rather than punctate lateral surface.
R. sulcata is very similar to, if not conspecific with Ulrichia varionoda Blumenstengel
(Freiberger ForschHft. (C), 182, 67, 1965). Kniipfer originally described R. sulcata as a subspecies
of U. varionoda and gave as differences its distinct sulcus and the stronger ‘velar’ keel. However,
the silification is rather coarse and the sulcus so weak (see PI. 13, 22, figs. 1, 3, PI. 13, 24, fig. 3)
that it is hard to acknowledge Kniipfer’s differentiation. However, because R. varionoda was
established on the basis of only ten valves and, furthermore, from an extremely rare limestone
boulder from the slightly younger Lederschiefer (Ashgill), Ulrichia varionoda sulcata is proposed
as the type-species of the new genus.
Known only from the type stratum in Thuringia, German Democratic Republic; localities as given
above. Caradoc Series, Ordovician.
Explanation of Plate 13, 24
Fig. 1, RV, ext. lat. (GPIMH 3252, 0.49mm long. Figs. 2, 3, RV (GPIMH 3253, 0.51 mm long): fig. 2, ext. vent, obi.; fig. 3, ext. lat.
Scale A (100/u.m; x 130), figs. 1-3.
Stereo- Atlas of Ostracod Shells 13, 22 Retinoda sulcata (2 of 4)
Stereo-Atlas of Ostracod Shells 13 (5) 25-28 (1986) Wehrlia olbertzae (1 of 4)
595.336.13 (113.312) (430.1 : 161.010.54) : 551.35 + 552.55
ON WEHRLIA OLBERTZAE SCHALLREUTER
by Roger E. L. Schallreuter
( University of Hamburg, Federal Republic of Germany)
Genus WEHRLIA Schallreuter, 1965
1965 Wehrlia g.n.; R. Schallreuter, Ber. geol. Ges. DDR , 10 (4), 484.
Type-species (by original designation): Wehrlia olbertzae Schallreuter, 1965.
Diagnosis: See ‘Diagnosis’ for the species. The genus is monotypic.
Remarks: Wehrlia is the type-genus of the subfamily Wehrliinae Schallreuter, 1965 (op. cit.), which are
quadrilobate to unisulcate ctenonotellids with a specialized, wehrliine antrum. The antrum is
formed by a sausage-shaped (botulate) dolon, with a row of peripheral spines having a grill-like
appearance. The following genera and subgenera also belong to the subfamily: Rakverella Opik,
1937; Rakverella (Pectidolon) Schallreuter, 1966; Bilobatia Schallreuter. 1976; Schallreuteria
Siveter, 1982; Schallreuteria ( Lippea ) Schallreuter, 1984.
Even amongst the wehrliines Wehrlia is a very specialized form, with its long flat
domicilium and its strong, laterally and posteriorly directed hook-line anterior spine. Perhaps it
lived between strands of floating algae and the hook functioned as some form of anchoring device.
Wehrlia olbertzae Schallreuter, 1965
1965 Wehrlia olbertzae g.n.sp.n., R. E. L. Schallreuter, op. cit., 479, 484, 485; pi. 11, figs. 2, 3.
1968 Wehrlia ; R. Schallreuter, Wiss. Z. Univ. Greifswald, Math.-naturwiss. R., 17 (1/2), 127.
1970 Wehrlia olbertzae ; R. E. L. Schallreuter, Hercynia, N.F., 6 [1969] (3), tab. 2 (292/3).
1973 Wehrlia olbertzae Schallreuter; W. Neben & H. H. Krueger, Staringia, 2, pi. 92, fig. 7.
1976 Wehrlia olbertzae Schallreuter; R. E. L. Schallreuter, Palaeontographica, (A), 153 (4/6), 208, 209.
Explanation of Plate 13. 26
Fig. 1, post, incomplete $ LV, ext. lat. (GPIMH 3254, 0.45mm high excluding spines); fig. 2, post incomplete tecnomorphic RV, ext.
lat. (GPIMH 3255, 0.35mm high excluding spines); fig. 3, $ RV, detail of ornament of lat. surface (GPIMH 3256).
Scale A (100/u.m; x 110), fig. 1; scale B (100 pun; x 120), fig. 2; scale C (50/u.m; x250), fig. 3.
Stereo- Atlas of Ostracod Shells 13, 27 Wehrlia olbertzae (3 of 4)
1978 Wehrlia olbertzae Schallreuter; J. Griindel, Z. geol. Wiss., 6 (1), 72.
1982 Wehrlia olbertzae Schallreuter; R. E. L. Schallreuter, Stereo-Atlas Ostracod Shells, 9 (18), 103.
1983 Wehrlia olbertzae, Schallreuter; R. E. L. Schallreuter, Palaeontographica, (A), 180 (4/6), 165, 166, 179, pi. 11, fig. 2.
1984 Wehrlia olbertzae Schallreuter; R. E. L. Schallreuter, N. Jb. Geol. Palaont. Abh., 169 (1), 4.
Holotype:
Type locality:
Figured specimens:
Diagnosis:
Distribution:
Sektion Geologische Wissenschaften, University of Greifswald, German Democratic Republic;
no. 15/6, dorsally and ventrally incomplete 9 RV.
Teschenhagen, S. of Stralsund, German Democratic Republic; lat. 54° 15'N, long. 13° 8'E.
Backsteinkalk erratic boulder no. and type 14B2 (of Schallreuter collection); equivalent of the
Idavere (C3) or Johvi stage (D,) of Estonia, lower Upper Viruan, middle Ordovician.
Geologisch-Palaontologisches Institut und Museum, University of Hamburg (GPIMH) nos. 3254
(9 LV: PI. 13, 26, fig. 1), 3255 (tecnomorphic RV: PI. 12, 26. fig. 2), 3256 (9 RV: PI. 13, 26, fig. 3,
PI. 13, 28, fig. 1) and 3257 (tecnomorphic RV: PI. 13, 28, fig. 2).
All from 14B2-type Backsteinkalk erratic boulder no. Lip 1 (of Schallreuter collection).
From the beach at Lippe, Hohwacht Bay, Baltic Sea, Germany; lat. 54° 18'N, long. 10° 38.5'E.
Boulder collected by the author in July 1983.
Adults c. 0.96mm long. Valves very long (L:H > 2.05). Free margin ventrally concave.
Quadrilobate, but with only one distinct sulcus (S2) which is long and sigmoidal. All lobes rather
flat. LI broad, occupying nearly the whole anterior field; has a very long, anteroventral,
posteriorly directed hook-like spine. L2 a low, oval node. L3 kidney-shaped, separated from L4 by
a semisulcus. L4 occupying the posterior part of posterior field, lower than L3. Velar flange
extends from below the base of the anteroventral spine up to the posterior cardinal corner; has
peripheral, long spines. Velar dolon ventrally broader than tecnomorphic flange and weakly
convex. Lateral surface with broad puncta, each with a small, central tubercle. Puncta on dolon
elongate; dolon striated parallel to margin.
Known only from lower Upper Viruan Backsteinkalk erratic boulders (types 14B2 and IB 13 of
Schallreuter collection), northern Germany and the Isle of Gotland (Sweden); middle Ordovician.
Explanation of Plate 13, 28
Fig. 1, ant. incomplete 9 RV, ext. lat. (GPIMH 3256, 0.42mm high excluding spines); fig. 2, ant. incomplete tecnomorphic RV, ext.
lat. (GPIMH 3257, 0.42mm high excluding spines). Scale A (100/um; xllO), figs. 1. 2.
Stereo-Atlas of Ostracod Shells 13, 26 Wehrlia olbertzae (2 of 4)
Stereo-Atlas of Ostracod Shells 13 (6) 29-32 (1986) Beyrichia kiaeri (1 of 4)
595.336.11.(113.331) (481:161 .010 .59) : 55 1 . 35 + 552.4
ON BEYRICHIA (ALTIBEYRICHIA) KIAERI HENNINGSMOEN
by Paul D. Pollicott
(University of Leicester, England)
Beyrichia (Altibeyrichia) kiaeri Henningsmoen, 1954
1954 Beyrichia ( Beyrichia ) kiaeri sp.n. G. Henningsmoen. Norsk, geol. Tidsskr., 34, 43. pi. 3, fig. 13 ( non 14. 15). pi. 8, fig. 8.
1957 Beyrichia kiaeri Henningsmoen, 1954; R. V. Kesling & K. J. Rogers, J. Paleont., 31, 999.
1957 Beyrichia kiaeri Henningsmoen; R. V. Kesling, Contr. Mas. Paleont. Univ. Mich., 14, 62, pi. 5, figs. 1-3.
1962 Beyrichia (Altibeyrichia) kiaeri Henningsmoen, 1954; A. Martinsson, Bull. geol. Instn Univ. Uppsala, 41, 293.
Holotxpe: Paleontologisk Museum, Oslo, Norway, PMO S2789; cf LV.
Type locality: Lang0ya, Holmestrand, Norway; Steinsfjorden Formation, Wenlock Series, Silurian. Etage 9c of
Kiaer (1908, Vidensk.-selsk Skr.l.Math.-Natur.klasse. 1906, II, 596 pp.). See Worsley, D. (Ed.),
Nor. geol. unders. 384, 1, 1983).
Figured specimens: Paleontologisk Museum, Oslo, nos. PMO 113.503 (9 RV: PI. 13, 30. figs. 1-3). PMO 113.504 (cf
LV: PI. 13, 30, fig. 4), PMO 113.505 (C f RV: PI. 13, 32, Fig. 1), PMO 113.506 (cf LV: PI. 13, 32,
figs. 2-4).
All specimens are from the type locality and horizon; approx. 59° 30'N, 10°15'E. Collected
by the author.
Explanation of Plate 13, 30
Figs. 1-3 9 RV (PMO 113.503, 2.32 mm long): fig. 1, ext. lat; fig. 2, ext. lat. obi; fig. 3, ext. vent. Fig. 4, cf LV, ext. lat. (PMO
113.504, 2.12 mm long).
Scale A (400 /xm; x 26), figs. 1, 2; scale B (430/xm; x 24), fig. 3; scale C (355 /xm; x 28), fig. 4.
Stereo-Atlas of Ostracod Shells 13, 31 Beyrichia kiaeri (3 of 4)
Diagnosis: Beyrichia ( Altibeyrichia ) species with entire, nearly isolate anterior lobe connected by low ridge to
both the preadductorial lobe and syllobium. Lobes elevated. Anterior syllobial cusp prominent,
posterior cusp generally well developed. Syllobium somewhat ridge-like anteriorly, less elevated
posteriorly. Anteroventral depression prominant. Velar spines well developed anteroventrally in
tecnomorphs. Valves finely granulose, with spare verrucae.
Remarks: The two other described species of the subgenus are B. (A.) contracta Martinsson, 1962 and B.(A.)
altiplancta Martinsson, 1962, from the Wenlock Series of Gotland. B.(A.) kiaeri is closest to
B.(A.) contracta in having a similar spinose velum and anteroventral depression, but differs by
lacking a postcruminal wing-like velar flange, its apparent lack of a calcarine spine in
tecnomorphs, by its more pronounced syllobial cusps and in having an undivided anterior lobe.
B.(A.) kiaeri differs from the type-species, B.(A.) altiplancta, in having a more strongly
developed anteroventral depression and lobal connection to the preadductorial lobe and also by
lacking an isolated cuspidal region to the anterior lobe.
A trend towards the isolation and lobulation of the anterior lobe can be traced in Beyrichia
(Altibeyrichia). B.(A.) kiaeri shows an entire, well connected anterior lobe. In B.(A.) contracta
the lobe is more isolated and appears to have a weak anteroventral lobule (Martinsson 1963, fig.
159). B.(A.) altiplancta shows total isolation of the cuspidal part of the anterior lobe above a
comparatively flattened anteroventral region (Martinsson 1962, fig. 161).
Distribution: B.(A.) kiaeri is known only from the Wenlock Series, lower Silurian of the Oslo region, Norway,
where it has been collected from many localities and horizons; 9ca to 9cy in Holmestrand and 9b to
9e in Ringerike. Henningsmoen reported the species from 8b at Ringerike (top Llandovery), but
two of his figured specimens from that locality (1954 op.cit., pi. 3, figs. 14, 15) are not conspecific
and are determined as Beyrichia sp. (Pollicott in prep.).
Explanation of Plate 13, 32
Fig. 1 , cf ext. lat. slightly obi. (PMO 113.505, 2.00 mm long). Figs. 2-4, cf LV (PMO 113.506, 1.84 mm long): fig. 2, ext. lat. obi.; fig.
3, ext. vent; fig. 4, ext. lat.
Scale A (325 /xm; X 31), fig. 1; scale B (310 /xm; x 33) figs. 2, 3; scale C (310 /xm; x 33), fig. 4.
Beyrichia kiaeri (2 of 4)
Stereo-Atlas of Ostracod Shells 13, 30
Stereo-Atlas of Ostracod Shells 13, 32
Beyrichia kiaeri (4 of 4)
Stereo-Atlas of Ostracod Shells 13 (7) 33-38 (1986)
595.337.14.(119.9) (261 : 27.162.004.51) : 551.351
Aurila woutersi (1 of 6)
ON AURILA WOUTERSI HORNE sp. nov.
by David J. Horne
(City of London Polytechnic, England )
Aurila woutersi sp. nov.
Aurila convexa (Baird); K. Wouters, Revue Micropaleont., 16, pi. 2, fig. 2.
Aurila convexa (Baird), form B.; D. J. Horne, J. micropalaeontol., 1, pi. 1, fig. 14.
Holotype: British Museum (Nat. Hist.) no. 1986.4, female right and left valves.
|Paratypes: nos. 1986.5, carapace, 1986.6, carapace, 1986.7, right and left valves; all
female. )
On the S shore of the Bristol Channel at Gore Point, Porlock, Somerset, W England; approx, lat.
51° 14' N, long. 3° 37' W; Recent.
After Dr. K. Wouters, Brussels; in recognition of his contribution to the study of the Ostracoda.
1973
1982
Type locality:
Derivation of name:
Explanation of Plate 13, 34
Fig. 1, $ RV, ext. lat. (holotype, 1986.4, 710 /am long); fig. 2, $ car., dors, (paratype. 1986.5, 760 pm long); fig. 3. 9 LV. ext. lat.
(holotype, 1986.4, 710 /am long).
Scale A (100 /am; x 85), figs 1-3.
Stereo-Atlas of Ostracod Shells 13, 35
Aurila woutersi (3 of 6)
Figured specimens:
Diagnosis:
Remarks:
British Museum (Nat. Hist.) nos. 1986.4 (holotype, 9 RV: PI. 13, 34, fig. 1; LV: PI. 13, 34. fig.
3), 1986.5 (paratype, 9 car.: PI. 13, 34, fig. 2), 1986.7 (paratype, 9 LV: PI. 13, 36. fig. 1; RV: PI.
13, 36, fig. 3), 1986.6 (paratype, 9 car.: PI- 13, 36, fig. 2).
All collected alive, by the author, from intertidal algae at the type locality on 9th March,
1978; 1986.4 and 1986.7 from Corallina, 1986.5 and 1986.6 from Laminaria holdfasts; salinity
31.7 o/oo, water temperature 9. CPC.
A subquadrate species of Aurila with an evenly arched dorsal margin. Valves ornamented with
small, rounded fossae, with primary and secondary reticulation developed around the anterior
and posterior margins. Opaque areas: central patch rather quadrate, with branching connections
from its posterodorsal corner to the dorsal and posterodorsal margin; anterodorsal patch
rounded, posterior patch small, rounded. Living specimens pale green in colour.
The occurrence of two distinct forms of Aurila convexa (Baird. 1850) s.l. in NW European
waters was noted by the author in his ecological study of phytal ostracods at Gore Point in the
Bristol Channel (Horne 1982, op.cit . ): ‘form A’ is now considered to represent A. convexa s.s.
(see Doruk, Stereo-Atlas Ostracod Shells, 1, 129-136, 1973), while ‘form B\ illustrated under the
name of A. convexa by at least one other author (Wouters 1973, op.cit.). is described herein as a
new species. The two species are most easily distinguished by comparison of their left valves; that
of A. woutersi is more quadrate, while that of A. convexa is subtriangular with a distinct angle at
the highest point of its dorsal margin. Other differences may be noted in surface ornament, shape
of opaque areas and colour in living specimens (A. convexa is yellow/brown, A. woutersi is green).
The three Recent British species of Aurila, namely A. woutersi, A. convexa and
A.arborescens (Brady, 1865) [=A.woodwardii (Brady, 1868); see Athersuch. Stereo-Atlas
Ostracod Shells, 7, 45-52, 1980, and Athersuch et al., J. micropalaeontol. . 4, 153-158. 1985], are
assumed to be parthenogenetic in British waters since no males have been found. However,
males of A. convexa and A.arborescens are known from the Mediterranean. As yet there are no
records of A. woutersi outside the British Isles.
Explanation of Plate 13, 36
Fig. 1, 9 LV, int. lat. (paratype, 1986.7, 720 pm long); fig. 2, 9 car., vent, (paratype, 1986.6, 750 pm long); fig. 3, 9 RV, int. lat.
(paratype, 1986.7, 720 /am long). Scale A (100 /am; x 85), figs. 1-3.
Aurila woutersi (2 of 6)
Stereo- Atlas of Ostracod Shells 13, 34
Stereo-Atlas of Ostracod Shells 13, 36
Aurila woutersi (4 of 6)
Text-fig. 2. Aurila woutersi, 9 appendages (based on the study of more than one specimen): a, antennula; b, antenna; c, mandible; d,
maxillula; e, first leg; f, second leg; g, third leg; h, furcae and genital lobes.
Stereo- Atlas of Ostracod Shells 13, 37 Aurila woutersi (5 of 6)
Distribution: Recent: marine, phytal. littoral and shallow sublittoral. British Isles. A. woutersi has previously
been confused with A.convexa and records of the latter species need to be re-examined. At the
type locality of A. woutersi both species are common members of phytal intertidal faunas. In
addition. I have seen specimens of both species in collections from the southern British localities
of Weymouth Bay. Swanage and the Thames Estuary.
Stereo-Atlas of Ostracod Shells 13. 38
Aurila woutersi (6 of 6)
Text-fig. 1. Aurila woutersi, 9 LV, ext. lat., seen in transmitted light; opaque areas stippled. (Based on the study of more than one
specimen).
Stereo- Atlas of Ostracod Shells 13 (8) 39-46 (1986)
595.337.14.(116.333.3) (669:161.004.06) : 552.52
Veenia nigeriensis ( 1 ot 8)
ON VEENIA ( NIGERIA ) NIGERIENSIS REYMENT
by Richard Reyment & Eva Reyment
(Department of Historical Geology & Palaeontology, University of Uppsala, Sweden)
1963
Genus VEENIA Butler & Jones, 1957
Subgenus NIGERIA Reyment, 1963
Type-species: (by original designation): Veenia nigeriensis Reyment, 1960.
Nigeria subgen. nov. R. Reyment, Stockh. Contr. Geol. 10, 186.
Diagnosis: Ovoid to subtrianguloid carapaces, relatively large, with a pointed to bluntly rounded posterior
and smoothly rounded anterior margin. Species are highly polymorphic with respect to shape and
ornament; morphs may be smooth, punctate or subreticulate. Shape polymorphism is manifested
mainly in the posterior outline and the prominence of the hinge-ear. All morphological variants
can occur in the same population and are therefore not ecophenotypic in nature. The anterior and
posterior margins bear varying numbers of denticles. There is usually a broad sulcus posterior of
the prominent eye-tubercle. The eye-socket is well developed. Inner margin and line of
concrescence usually coincident, but there may be a shallow vestibule in left valves. Sexual
dimorphism fairly strong with males longer and somewhat lower, on the average, than females;
there is overlap in the univariate distributions for carapace measurements and dimorphism can
only be completely resolved by multivariate statistics. Hinge variably paramphidont. Anterior
marginal pore canals straight and numerous. Posterior marginal pore canals largely concentrated
in posteroventral zone where they are numerous. Four vertically aligned adductor muscle scars
and a v-shaped frontal scar. Prominent adductorial tubercle almost always found.
Explanation of Plate 13, 40
Fig. 1, $ car., rt. lat., regularly reticulate morph (PMAf986, 910 /xm long); fig. 2, juv.? car., rt. lat. irregularly ornamented morph
with pointed posterior (PMAf987, 1010 /xm long); fig. 3, $ car., oblique dors., regularly reticulate morph (PMAf982, 910 /urn
long). Scale A (200 /urn; x 60), figs. 1-3.
Stereo-Atlas of Ostracod Shells 13, 41
Veenia nigeriensis (3 of 8)
Distribution: Late Cenomanian of Algeria and Morocco; “Senonian" of Senegal; Campanian to early Paleocene
of Nigeria, Cameroun, and Ghana.
1960
1963
Veenia ( Nigeria ) nigeriensis Reyment, 1960
Veenia nigeriensis sp. nov. R. Reyment, Stockh. Contr. Geol., 7, 169, pi. 11, figs. 1, 1-c, pi. 16, figs. 1-3. pi. 17. figs. 1-3, fig.
56.
Veenia ( Nigeria ) nigeriensis Reyment; R. Reyment, Stockh. Contr. Geol., 10, 186.
Holotype: Geological Department, University of Stockholm, specimen no. GIO 84/5.
Subsurface of western Nigeria (Araromi borehole), approx, lat. 06° 35' N. long. 04° 55' E;
Araromi Shale, late Maastrichtian, Cretaceous.
Palaeontological Museum, University of Uppsala, Sweden, nos. PMAf979 (RV: PI. 13, 44, fig. 1;
PI. 13, 46, fig. 1), PMAf980 (LV: PI. 13, 44. fig. 3), PMAf981 (LV: PI. 13, 46, fig. 2), PMAf982 (9
car.: PI. 13, 40, fig. 3; PI. 13, 42, fig. 1), PMAf983 (9 car.: PI. 13, 42. fig. 2), PMAf984 (cf car.: PI.
13, 42, fig. 3), PMAf985 (LV: PI. 13, 44, fig. 2), PMAf986 (9 car.: PI. 13, 40, fig. 1), PMAf987
(juv.? car.: PI. 13, 40, fig. 2) and PMAf992 (9? car.: PI. 13, 46, fig. 3).
All from the Gbekebo 1 borehole, western Nigeria (drilled by the Shell D'Arcy Petroleum
Exploration Company), from the Campanian? - Maastrichtian Araromi Shale at the following
depths (in feet): 2963 (PMAf987), 2969 (PMAf981), 3126 (PMAf984), 3209 (PMAf979; PMAf980),
3265 (PMAf982; PMAf985), 3271 (PMAf983) and 3274 (PMAf986; PMAf992).
Type locality:
Figured specimens:
Explanation of Plate 13, 42
Fig. 1, 9 car., oblique vent., regularly reticulate morph (PMAf982, 960 /um long): fig. 2. 9 car., rt. lat. laterally smooth morph
(PMAf983, 880 /xm long); fig. 3, cf car.. It. lat., smooth morph (PMAf984. 1330 /xm long).
Scale A (200 /xm; x 60), figs. 1-3.
Stereo-Atlas of Ostracod Shells 13, 43 Veenia nigeriensis (5 of 8)
Diagnosis: Highly polymorphic (mode of reticulation; shape of posterior; laterally smooth or punctate).
Strong sexual dimorphism in size and shape; dorsal margin almost straight in males, slightly arched
in females. Strong adductor tubercle. Carapace with or without obscure lateral bulges. Rounded
eye tubercle. Variable denticulation of anterior and posterior margins. Lateral pores often
countersunk. Hinge variable, paramphidont.
Distribution: Maastrichtian and possibly also the late Campanian of West Africa (Ghana. Benin. Nigeria and
Cameroun). Reworked specimens are common in the Paleocene of Cameroun and coastal Nigeria.
Explanation of Plate 13, 44
Fig. 1, RV, int. lat. , showing hinge (PMAf979); fig. 2, LV, ext. lat. lateral pore (PMAf985); fig. 3, LV, int. lat. , showing hinge
(PMAf980).
Scale A (200 /xm; x 120), figs. 1-3; scale B (5 /xra; x 1200), fig. 2.
Stereo- Atlas of Ostracod Shells 13, 45 Veenia nigeriensis (7 of 8)
Text-fig. 1. Outlines of carapaces of Veenia nigeriensis showing variation in shape. All are mature individuals (from a number of
different populations), the size differences resulting from ecophenotypic factors.
Explanation of Plate 13, 46
Fig. 1, RV, int. lat., (PMAf979, 1050 fim long); fig. 2, LV, int. lat., (PMAf981, 1000 fim long); fig. 3, 9? car.. It. lat., irregularly
reticulate morph (PMAf992; 1050 /um long).
Scale A (200 pirn; x 60), figs. 1-3.
Veenia nigeriensis (6 of 8)
Stereo- Atlas of Ostracod Shells 13, 46
Stereo- Atlas of Ostracod Shells 13, 44
Veenia nigeriensis (8 of 8)
Stereo-Atlas of Ostracod Shells 13 (9) 47-50 (1986)
595.337.11.(118.14) (540:161.074.33) : 551.35 + 552.54
Bairdia jammuensis (1 of 4)
ON BAIRDIA JAMMUENSIS SINGH & TEWARI
by Pratap Singh
(33 Khur Bura, Dehra Dun, India)
Bairdia jammuensis Singh & Tewari, 1966
1966 Bairdia jammuensis sp. nov. P. Singh & B. S. Tewari in: B. S. Tewari & P. Singh, Cent. Advan. Study in Geology, Panjab
University, Chandigarh, 3, 119, pi. 1, figs. 3a-d.
Holotype: University of Lucknow, India, coll. no. L.U. 212.
[Paratype: L.U. 213].
Type locality: Sample 22; dark grey, fossiliferous, argillaceous limestone of the Kalakot Formation, Subathu
Group, late early Eocene. About 150 feet above road level in a cliff on the western side of the road
leading to Gua from Beragua and situated at a distance of about 800 feet S15° W from the opening
of the Beragua Mine in the Kalakot Coalfield (Survey of India topographic sheet 43K/8),
Nawshera and Rajouri Tehsils of Poonch District, Jammu and Kashmir State, India (see Neale &
Singh, Stereo-Atlas Ostracod Shells, 11, 139, text-fig. 1, 1984).
Figured specimens : University of Lucknow nos. L.U. 212 (holotype, car.: PI. 13, 48, figs. 1, 2; PI. 13, 50, figs. 2, 3).
L.U. 213 (paratype, car.: PI. 13, 50, fig. 1). Both from the type locality and horizon.
Explanation of Plate 13, 48
Fig. 1, 2. car. (holotype, L.U. 212, 940 fx m long): fig. 1, rt. lat. ; fig. 2, It. lat.
Scale A (200 /xm: x 104), figs. 1, 2.
Stereo-Atlas of Ostracod Shells 13, 49
Bairdia jammuensis (3 of 4)
Diagnosis:
Remarks:
Distribution:
Carapace elongate; dorsal margin arched, ventral margin straight; anterior end rounded in ventral
half and angularly rounded in dorsal half; posterior end blunt; anterior side broader than
posterior; left valve larger and overlaps the right valve along dorsal, mid-ventral, some parts of
posteroventral and anteroventral margins, length twice the height, highest in middle; in dorsal and
ventral views lateral outline moderately convex with posterior end more compressed than anterior
end, dorsal and ventral margin slightly curved.
Bairdia jammuensis can be easily distinguished from the associated species B. beraguaensis (see
Singh, Stereo-Atlas of Ostracod Shells, 11, 141-144, 1984), B. kalakotensis (see Singh, ibid., 11,
145-148, 1984) and Bairdoppilata kalakotensis (see Neale & Singh, ibid., 11, 137-140. 1984), by its
elongate carapace, gently arched dorsal margin and straight ventral margin.
Bairdia jammuensis occurs in the Kalakot Formation of the Subathu Group exposed in Jammu and
Kashmir State; late early Eocene.
Explanation of Plate 13, 50
Fig. 1. 2. car. rt. lat. (paratype, L.U. 213, 990 /u,m long). Figs. 2, 3, car. (holotype. L.U. 212, 940 /am long): fig. 2. ext. dors.; fig. 3, ext.
vent.
Scale A (200 /am; X 100), fig. 1; scale B (200 /am; X 90), figs. 2. 3.
Stereo-Atlas of Ostracod Shells 13, 50
Stereo-Atlas of Ostracod Shells 13, 48
Bairdia jammuensis (2 of 4)
Bairdia jammuensis (4 of 4)
Stereo-Atlas of Ostracod Shells 13 (10) 51-54 (1986) Paracypris jhingrani (1 of 4)
595.337.12 (118.14) (540 : 161.074.33) : 551. 35 + 552.54
ON PARACYPRIS JHINGRANI SINGH & TEWARI
by Pratap Singh
(33 Khur Burn , Dehra Dun, India)
Paracypris jhingrani Singh & Tewari, 1966
1966 Paracypris jhingrani sp. nov. P. Singh & B. S. Tewari in: B. S. Tewari & P. Singh, Cent. Advan. Study in Geology, Panjab
University, Chandigarh, 3, 122, pi. 2, figs. 5a-d.
Holotype: University of Lucknow', India, coll. no. L.U. 220.
Type locality: Sample 22; dark grey, fossiliferous, argillaceous limestone of the Kalakot Formation, Subathu
Group, late early Eocene. About 150 feet above road level in a cliff on the western side of the road
leading to Gua from Beragua and situated at a distance of about 800 feet S15° W from the opening
of the Beragua Mine in the Kalakot Coalfield (Survey of India topographic sheet 43K/8),
Nawshera and Rajouri Tehsils of Poonch District, Jammu and Kashmir State, India (see Neale &
Singh, Stereo-Atlas Ostracod Shells , 11, 139, text-fig. 1, 1984).
Figured specimens: University of Lucknow nos. L.U. 220 (holotype, car.: PI. 13, 52, figs. 1, 2; PI. 13, 54, figs. 1, 2).
From the type locality and horizon.
Explanation of Plate 13, 52
Fig. 1, 2. car. (holotype, L.U. 220, 720 /rm long); fig. 1, rt. lat.; fig. 2, It. lat.
Scale A (100 /rm; X 136), figs. 1, 2.
Stereo-Atlas of Ostracod Shells 13, 53 Paracypris jhingrani (3 of 4)
Diagnosis:
Remarks:
Distribution:
Elongate, wedge-shaped; dorsal margin gently arched, ventral margin slightly convex; anterior
end rounded; tapering posterior end; left valve larger and overlaps the right valve all around;
length twice the height, highest part of carapace a little posterior of middle; lateral outline in
dorsal and ventral views moderately convex with obtuse extremities, dorsal margin straight and
ventral margin curved in middle.
Pant and Khosla ( J . Geol. Soc. India, 23, 512, 1982) in their note on the Eocene of Kutch,
Gujarat, record P. jhingrani as Phlyctenophora jhingrani. It seems probable that the Kutch
specimens are not conspecific with the Jammu and Kashmir material. The valve details such as
pore canals and muscle scar pattern are not observable and for the present this species is left in the
genus Paracypris.
P. jhingrani occurs in the late early Eocene Kalakot Formation of the Subathu Group exposed in
Jammu and Kashmir State.
Explanation of Plate 13, 54
Fig. 1, 2. car. (holotype, L.U. 220, 720 pm): fig. 1. dors.; fig. 2, vent.
Scale A (100 gm; x 136), figs. 1, 2.
Paracypris jhingrani (2 of 4)
Paracypris jhingrani (4 of 4)
Stereo- Atlas of Ostracod Shells 13, 52
Stereo- Atlas of Ostracod Shells 13, 54
Stereo-Atlas of Ostracod Shells 13 (11) 55-58 (1986) Eocytheridea kirtlingtonensis (1 of 4)
595.337.14 (116.222) (425.72:162.002.51) : 551.351 + 552.54
ON EOCYTHERIDEA KIRTLINGTONENSIS BATE & MELLISH sp. nov.
by R. H. Bate & Claire Mellish
(Stratigraphic Services International, Surrey & British Museum ( Natural History), London)
Eocytheridea kirtlingtonensis sp. nov.
1978 Eocytheridea sp. A. ; R. H. Bate, in: R. H. Bate & E. Robinson (Eds.), A Stratigraphical Index of British Ostracoda. Geol. J.
Spec. Issue, 8, 242, pi. 9, fig. 9.
Holotype: British Museum (Nat. Hist.) no. OS 9668, 9 LV.
[Paratypes: OS 9389, 9669, 12127-9, 12188-9],
Type locality: Kirtlington Cement Quarry, Oxfordshire, England. Grid reference: SP 49451985. Lower
Cornbrash, Bathonian, Jurassic.
Figured specimens: British Museum (Nat. Hist.) OS 9668 (holotype, 9 LV: PI. 13, 56, fig. 1), OS 12127 cf RV: PI. 13,
56, fig. 2), OS 12128 (9 LV: PI. 13, 56, fig. 3), OS 12189 (9 car: P. 13, 58. fig. 1), OS 12188 (9 car:
PI. 13, 58, fig. 2), OS 12129 (9 RV: PI. 13, 58, fig. 3).
[All Specimens are from the type locality and horizon, sample KL.A.59
Explanation of Plate 13, 56
Fig. 1, 9 LV, ext. lat. (holotype, OS 9668, 800 /am long); fig. 2, cf RV, ext. lat. (OS 12127, 790 /xm long); fig. 3, 9 LV, int. lat.
(OS 12128, 570/j.m long).
Scale A (200/u.m; x75), figs. 1-2; scale B (200/um; x 105), fig. 3.
Stereo- Atlas of Ostracod Shells 13, 57 Eocytheridea kirtlingtonensis (3 of 4)
Diagnosis: Eocytheridea with oval carapace widest in posterior half and with waist-like constriction just
anterior of median point (dorsal and ventral views). Males more elongate than females. Posterior
tapers to a point situated at mid-height and through which runs line of greatest length. Anterior
end broadly rounded; dorsal and ventral margins broadly convex. Lateral surface ornamented
with a triangular pattern of irregular, sometimes branching, ridges. Left valve larger than and
overreaching the right valve on all sides. Distinct normal pore canal apertures especially visible on
dorsal and ventral surfaces. Hinge antimerodont with large loculate sockets and a short dentate
median bar with an accommodation groove above in the left valve. Right valve hinge with large
posterior and anterior dentate ridges and with a short median groove. Muscle scars with a
clover-leaf-shaped frontal scar medially positioned anterior to curved row of adductor scars. Inner
margin and line of concrescence coincide. Radial pore canals not seen in present material.
Remarks: E. kirtlingtonensis possesses a triangular pattern of ridges on its lateral surface that differs from
that of E. reticulata Bate, 1964 from the Bajocian of Lincolnshire (Bull. Br. Mus. nat. Hist., Geol. ,
10, 21) by being composed of more closely spaced ridges having an irregular outline that in some
specimens make if difficult to distinguish the triangular arrangement. At the present time E.
kirtlingtonensis appears to be the last surviving species of this middle Jurassic genus that
environmentally is associated with shallow marine sediments deposited close to shore.
Distribution: E. kirtlingtonensis is recorded from the lower Cornbrash and Wychwood Beds (Forest Marble) of
the Old Cement Quarry, Kirtlington, Oxfordshire, England. It has not been found in the deeper
water facies to the south. Stratigraphically this species has an upper Bathonian range, apparently
restricted to the ammonite aspidoides Zone. It is thus an important marker species for the late
Bathonian within a shallow marine environment.
Explanation of Plate 13, 58
Fig. 1, 9 car., dors. (OS 12189, 610/u.m long); fig. 2, 9 car., vent. (OS 12188, 600 /urn long); fig. 3, 9 RV, int. lat. (OS 12129, 690 /an
long).
Scale A (200|U.m; x 100), figs. 1-2; scale B (200/a.m; x85), fig. 3.
Stereo-Atlas of Ostracod Shells 13, 58
Eocytheridea kirtlingtonensis (4 of 4)
Stereo- Atlas of Ostracod Shells 13, 56
Eocytheridea kirtlingtonensis (2 of 4)
Stereo-Atlas of Ostracod Shells 13 (12) 59-62 (1986) Cythereis lindiensis (1 of 4)
595.337.14 (116.313 + 116.331) (678 : 161.039.10 + 161.038.07 + 55 : 161.054.25 +161.050.28) : 551.351 + 552.52
ON CYTHEREIS EINDIENSIS BATE
by R. H. Bate & Claire Mellish
(Stratigraphic Services International , Surrey & British Museum (Natural History), London )
Cythereis lindiensis Bate, 1969
1969 Cythereis lindiensis sp. nov. R. H. Bate, Proc. 3rd African Micropal. Coll., Cairo 1968, 140, pi. 6, figs. 1-4.
1973 Cythereis lindiensis Bate; E. Grosdidier, Revue Inst, /rang Petrole , 28, 135, pi. 13, fig. 104.
Holotype: British Museum (Nat. Hist.) no. IO 771, 9 carapace.
[Paratypes: IO 778, 779. 1393-7],
Type locality: Nalukundi stream, just north of Maweni Creek, 13 miles south-west of Lindi, Tanzania (39°80'E;
10°10'S). Cenomanian shales (sample B150), Cretaceous.
Figured specimens: British Museum (Nat. Hist.) IO 771 (holotype, 9 car.; PI. 13, 60. fig. 1), IO 1393 (cf car.; PI. 13.
60, fig. 21, IO 779 (cf RV: PI. 13, 62, figs. 1-3), IO 1394 (9 car.: PI. 13, 60. fig. 3), IO 778 (cf LV:
PI. 13, 62, figs. 4-7).
All specimens are from the type locality and horizon.
Explanation of Plate 13, 60
Fig. 1, 9 car., h- lat. (holotype, IO 771, 880/u.m long); fig. 2, cf car., rt. lat. (IO 1393. 870yu.m long); fig. 3, Cf car., dors. (IO 1394.
870/u.m long).
Scale A (200 yum; x70), figs. 1-3.
Stereo-Atlas of Ostracod Shells 13, 61 Cythereis lindiensis (3 of 4)
Diagnosis: Cythereis having broad, low, subcentral tubercle ; dorsal and ventral ridges swollen, broken up into
a number of vertical ridges. Eye swelling distinct. Shell surface smooth except for area behind
anterior marginal ridge, within the furrows and on the posterior marginal border where the surface
is finely pitted. Hinge amphidont with faintly notched, plug-like anterior tooth in right valve with
deep, smooth, anteromedian socket, long, locellate median groove and 6 posterior teeth; left valve
with complementary terminal sockets and dentate median bar. Selvage with ridged surface. Radial
pore canals straight, approximately 15 anteriorly and 4 posteriorly. Muscle scars with V-shaped
frontal scar. Anterior and posteroventral marginal spines well developed. Left valve larger than
right.
Remarks: C. lindiensis is a morphologically distinct species recognised by the swollen dorsal and ventral
ridges that are characteristically subdivided into vertical ridges. A re-examination of the type
material has allowed us to emend the diagnosis by the recognition of the dentate character of the
median hinge element. Additionally we have now been able to resolve the pitted nature of the
supposedly smooth lateral surface just behind the anterior marginal ridge. These pits are not
randomly orientated but tend to be aligned into rows. Pits also occur within the surface furrows
and on the posterior marginal border.
Distribution: Cythereis lindiensis was first described from Cenomanian shales exposed in the Nalukundi stream,
south of Lindi (sample B150), Tanzania, and from Kiwangwa shale (Cenomanian) developed in
the Wami River area to the north (samples B22-27). Subsequently the species has been found in
Albian shales (samples B37-40) exposed on the banks of the Wami River near the village of
Gongo. Grosdidier (1973 op. cit.) records C. lindiensis from offshore Iran near the island of Sirri
(54°50'E; 25°50'N) and south-west of Bushir (50°10'E; 28°40'N). Thus the stratigraphical range
of C. lindiensis is from Albian to Cenomanian and its geographical range is from S Tanzania to
Iran. It has not yet been recognised south of Tanzania despite the detailed work of Dingle on the
Cretaceous ostracods of South Africa.
Explanation of Plate 13, 62
Figs. 1-3, c f RV (IO 779, 880 /am long): fig. 1, int. lat.; figs. 2, 3, anterior and posterior hinge elements. Figs. 4-7, cf LV (IO 778,
880/am long); fig. 4, int. lat.; figs. 5, 6, posterior and anterior hinge elements; fig. 7, muscle scars.
Scale A (200/u.m; X70), figs. 1, 4; scale B (100/um; x 100), figs. 2, 3, 5, 6; scale C (20/am; x460), fig. 7.
Cythereis lindiensis (2 of 4)
Stereo-Atlas of Ostracod Shells 13, 62
Cythereis lindiensis (4 of 4)
Stereo- Atlas of Ostracod Shells 13, 60
Stereo-Atlas of Ostracod Shells 13 (13) 63-66 (1986) Navarracy there estellensis (1 of 4)
595.337.14 (116.331) (460 : 162.003.42) : 551.35 + 552.54
ON NAVARRACYTHERE ESTELLENSIS COLIN & RODRIGUEZ-LAZARO
gen. et sp. nov.
by J. P. Colin & J. Rodriguez-Lazaro
(Esso Production Research- European Laboratory, Begles, France & Universidad del Pais Vasco, Bilbao, Spain)
Genus NAVARRACYTHERE gen. nov.
Type-species: Navarracy there estellensis sp. nov.
Diagnosis: A trachyleberidine genus; ventral ridge not connected with anterior ridge and formed by a series
of massive tubercles, especially the posterior one. Sub-central tubercle well developed. Dorsal
margin bearing two main processes; a median cone and a massive posterior tubercle.
Ornamentation usually reticulate. Distinct hinge-ear on the left valve. Amphidont hinge.
Marginal pore canals numerous, simple and straight.
Remarks: Parexophthalmocy there (Amphiexophthalmocythere) Grundel, 1975 (Freiberger ForscHft., 304.
33-37), presents a more triangular outline, a distinct trilobate posterior tooth in the left valve and
a wider marginal zone. Kamajcythereis Pokorny & Colin, 1976 ( Cas . Miner. Geol., 21. 23-31) has
different ornamentation with distinct longitudinal ventral and dorsal ridges and a crenulate hinge.
Other species included in this new genus are: Cythereis sp. 307 Oertli, 1958, from the Aptian of SE
France ( Revue Inst. fr. Petrole , 13, 1514, pi. 8, fig. 170, pi. 9, fig. 199); Cythereis! dorsospinata
dorsospinata Damotte, 1971 (Mem. Soc. geol. Fr., 113), from the Cenomanian of the Paris Basin:
Cythereis! dorsospinata charentensis Colin, 1974 ( Eclog . geol. Helv., 67, 448-9. pi. 1. figs. 1-3),
from the Cenomanian of SW France; Spinolebris aculeata Donze, 1972 (Eclog. geol. Helv., 65.
380-2, pi. 2, figs. 1-6, pi. 3, figs. 1-10), from the Cenomanian-Turonian of SE France; Cythereisl
morralensis Andreu, 1983 and Cythereis sobrefrontensis Andreu. 1983, from the late Albian of
Spain (Bull. Cents. Rech. Expl.-Prod. Elf -Aquitaine, 7).
Explanation of Plate 13. 64
Fig. 1, $ car., ext. rt. lat. (BIPA 2061, 570/xm long); fig. 2, $ RV, ext. lat. (BIPA 2062. 580 /u.m long); fig. 3, 9 RV, int. lat. (BIPA
2063, 536/u.m long).
Scale A (100/am; X 105), figs. 1, 2; scale B (100/u.m; X 112), fig. 3.
Stereo-Atlas of Ostracod Shells 13, 65 Navarracythere estellensis (3 of 4)
Distribution:
The known stratigraphic range of this genus is from the Aptian to the Turonian of Western
Europe.
Navarracythere estellensis sp. nov.
Holotvpe:
Type locality:
Figured specimens:
Diagnosis:
Distribution:
Deposited in the collections of the Geology Department, Universidad del Pais Vasco, Bilbao
(BIPA 2060); 9 LV.
About 550m W of Ganuza near Estella, Navarra, Spain: approx, lat. 42°42'N, long, 02°07'W.
Early to middle Cenomanian, Cretaceous.
Universidad de Pais Vasco nos. BIPA 2061 (9 car.: PI. 13, 64, fig. 1), BIPA 2062 (9 RV: PI. 13,
64, fig. 2). BIPA 2063 (9 RV: PI. 13, 64, fig. 3), BIPA 2060 (9 LV: PI. 13, 66, fig. 1). BIPA 2064
(Cf car.: PI. 13, 66, fig. 2), BIPA 2065 (cf car.: PI. 13. 66, fig. 3).
All the specimens are from the Cenomanian of the type-locality: from brownish micaceous
marls of early to middle Cenomanian age (Rotalipora reicheli Zone), with Rotalipora brotzeni,
Praeglobotruncana stephani, Rotalipora montsalvensis and Favusella washitensis .
Navarracythere species with strong development of the sub-central, postero-ventral and
postero-dorsal tubercles, which may be smooth or spinose; surface of the valves deeply reticulate.
Early to middle Cenomanian of Navarra and Soria Provinces, Spain.
Explanation of Plate 13, 66
Fig. 1, 9 LV, ext. lat. (holotype BIPA 2060, 571/u.m long); fig. 2, 9 car., ext. dors. (BIPA 2064, 666 /um long); fig. 3, cf car., ext. vent.
(BIPA 2065, 665/xm long).
Scale A (100/zm; x 105), fig. 1; scale B (100/u.m; x95), figs. 2, 3.
Navarracy there estellensis (2 of 4)
Navarracy there estellensis (4 of 4)
Stereo-Atlas of Ostracod Shells 13, 64
Stereo-Atlas of Ostracod Shells 13, 66
r
■
Stereo- Atlas of Ostracod Shells 13 (14) 67-70 (1986)
595.337.14 (116.333.3) (611 : 161.008.36) : 551.352 + 552.54
ON KEFIELLA MARESI DONZE & SAID
by J. P. Colin
(Esso Production Research- European Laboratory, Begles, France)
Kefiella maresi ( 1 of 4)
Genus KEFIELLA Donze & Said, 1982
Type-species (by original designation): Kefiella maresi Donze & Said, 1982
Diagnosis: A blind trachyleberidid genus (no eye tubercle) with a carapace anteriorly and posteriorly
compressed. Valve surface covered by reticulation with smaller meshes on the anterior and
posterior fields. Ventral and dorsal ridges reduced to a series of pore conuli. Ventral ridge not
connected with the anterior ridge. Sub-central tubercle smooth and well developed followed
posteriorly by a short longitudinal ridge. Sexual dimorphism well marked. Anterior marginal zone
moderately wide without vestible. Marginal pore canals numerous, simple, grouped into two's or
three’s. Amphidont hinge.
Remarks: This genus is morphologically related to the deep-water genera Atlanticythere Benson. 1977 (Init.
Rep. D. S. D. P. , 39. 876-7, pis. 1, 2), and Dutoitella Dingle, 1981 (Ann. S. Afr. Mus. . 85. 84-92).
Atlanticythere is larger, has no median ridge and a foveolate ornamentation. In Dutoitella the
ventral ridge is in continuity with the anterior ridge. Dingle (1981) introduced the sub-family
Unicapellinae for these genera.
Explanation of Plate 13. 68
Fig. 1, 9 car., ext. rt- lat- (EPR-E 18431, 646/u.m long); fig. 2, 9 car., ext. It. lat. (EPR-E 18429, 656^m long); fig. 3, 9 car., ext. vent.
(EPR-E 18451, 656/jLm long).
Scale A (100 /um; x96), figs. 1-3.
Stereo- Atlas of Ostracod Shells 13, 69 Kefiella maresi (3 of 4)
Kefiella maresi Donze & Said, 1982
1982 Kefiella maresi Donze & Said n. gen. n. sp. in: P. Donze, J. P. Colin. R. Damotte. H. J. Oertli, J. P. Peypouquet & R. Said.
Bull. Cents. Rech. Expl.-Prod. Elf -Aquitaine. 6, 290-291. pi. 8, figs. 1-10, pi. 9, figs. 1-2. pi. 14, fig. 7.
Holotype:
Type locality:
Figured specimens:
Diagnosis:
Distribution:
Deposited in the collections of the Dept, des Sciences de la Terre, Universite Claude Bernard.
Lyon, France; cf carapace.
El Kef section. NW Tunisia; x = 288-0; y = 318-5. Late Maastrichtian, Cretaceous.
EPR-E nos. 18431 (9 car. : PI. 13, 68, fig. 1). 18429 (9 car.: PI. 13, 68, fig. 2), 18451 (9 car.: PI.
13, 68, fig. 3), 18444 (9 RV: PI. 13, 70, fig. 1), 18447 (9 LV: PI. 13, 70, fig. 2), 18441 (9 car.: PI.
13, 70, fig. 3).
All the specimens are from the late Maastrichtian of the type-locality: marls of the
Globotruncana gansseri and Abathomphalus mayaroensis zones (upper bathyal environment).
As for the genus.
Late Maastrichtian of Tunisia.
Explanation of Plate 13, 70
Fig. 1, 9 RV, int. lat. (EPR-E 18444, 650 Aim long); fig. 2, 9 LV, int. lat. (EPR-E 18447, 660 pm long); fig. 3, 9 car., ext. dors.
(EPR-E 18441, 635 long).
Scale A (100/u.m; x 100), fig. 1; scale B (100/u.m; x91), fig. 2; scale C (lOO^im; x96), fig. 3.
Kefiella maresi (2 of 4)
Stereo-Atlas of Ostracod Shells 13, 70
Stereo-Atlas of Ostracod Shells 13, 68
Kefiella maresi (4 of 4)
Stereo-Atlas of Ostracod Shells 13 (15) 71-76 (1986) Eucy there argus (1 of 6)
595.337.14(119.9) (420 : 161.001.51 + 420.162.002.54 + 420: 162.001 .55 + 415 : 162.010.54 + 261.26: 161 + 261.24: 161.010.54)
: 551.351
ON EUCYTHERE ARGUS (SARS)
by David J. Horne & Amnon Rosenfeld
(City of London Polytechnic & Geological Survey of Israel)
Eucythere argus (Sars, 1866)
1866 Cytheropsis Argus sp. nov. G. O. Sars, Forh. VidenskSelsk. Krist., 1865, 58.
1868 Eucythere Argus (Sars); G. S. Brady, Trans. Linn. Soc. Lond., 26. 431, pi. 27, figs. 49-51.
1874 Eucythere Argus (Sars); G. S. Brady, H. W. Crosskey & D. Robertson, Palaeontogr. Soc. (Monogr.), 28. 183, pi. 10, figs.
12-15.
1925 Eucythere Argus (Sars); G. O. Sars, An account of the Crustacea of Norway , 9, Ostracoda , pts. 9, 10, 162-163, pi. 75, fig. 1.
1929 Eucythere undulata sp. nov. W. Klie, Z. wiss. Zool., 134, 274-277, figs. 1-7.
1938 Eucythere Argus (Sars); W. Klie, in: F. Dahl, Die Tierwelt Deutschlands, 34. (3), 178, figs. 591-594.
1938 Eucythere undulata Klie; W. Klie, Ibid., 179-180, figs. 599-602.
1957 Eucythere declivis (Norman); C. W. Wagner, Sur les Ostracodes du Quaternaire recent des Pays- Bays et leur utilisation dans
I’etude geologiques des depots holocenes , 43-44 (pars), pi. 15, figs. 1-4 only ( non fig. 5), Mouton & Co., The Hague.
1977 Eucythere Argus (Sars); A. Rosenfeld, Meyniana, 29. 20, pi. 3, figs. 43-45.
1981 Eucythere Argus (Sars); T. Cronin, Micropaleontology , 27, 396, pi. 4, figs. 3, 4, 6.
Explanation of Plate 13, 72
Fig. 1, 9 LV, ext. lat. (1985.159, 630/um long); figs. 2-4, cf LV (1986.392, 580/i.m long): fig. 2. ext. lat.; figs. 3, 4, details of
ornament and sieve-pores in ant. region.
Scale A (lOOyurn; x95), figs. 1, 2; scale B (10/u.m; x900), fig. 3; scale C (10/um; x 1800), fig. 4.
Stereo-Atlas of Ostracod Shells 13, 73 Eucythere argus (3 of 6)
Type specimens:
Type locality:
Figured specimens:
Diagnosis:
None are listed in Sars' collection at the Zoological Museum. Oslo, Norway.
Oslo Fjord (= Christianiafjord) and Oxfjord, Finmark. Norwegian coasts.
British Museum (Nat. Hist.) nos. 1985.159 (9 LV; PI. 13, 72, fig. 1). 1986.392 (cf car. +
appendages; LV: PI. 13, 72, figs. 2-4; RV: PI. 13. 74. figs. 2-5; cf copulatory appendage:
Text-fig. If). Hancock Museum, University of Newcastle, nos. 1.56.09 (9 car.; LV: PI. 13. 74,
fig. 1; RV: Text-fig. li), 1.56.10 (9 RV: Text-fig. lg), 1.56.11 (cf appendages: Text-figs. ld-e).
I. 56.12 (cf RV: Text-fig. lh). Hamburg Museum specimen (Q appendages: Text-figs. la-c).
No. 1985.159, from the South Forties region of the North Sea. depth 73m. was provided by
J. E. Robinson. No. 1986.392 was collected at Sandwich Bay, Kent (approx, lat. 51°18'N, long.
01°25'E) by J. E. Whittaker. The Hancock Museum specimens were all taken from slides in the
Brady collection: 1.56.09 (from slide 2.13.05) is from 20-30 miles off Sunderland, NE England
(approx, lat. 55°00'N, long. 01°00'W); 1.56.10 and 1.56.11 (from slide 2.13.04) are from
Hartlepool, NE England (approx, lat. 54°41'N, long. 01°08' W); and 1.56.12 (from slide 2.03.16)
is from Westport Bay (=Clew Bay), W Ireland (approx, lat. 53°50'N, long. 09°40'W). The
Hamburg Museum specimen, from Holpe Bank, Baltic Sea (approx, lat. 54°30' N. long. 10° 30' E),
was selected from Klie’s syntypes of E. undulata and dissected by D J H ; it has been returned to the
museum on a separate, labelled slide.
Carapace with concentric ribbing in anterior and ventral areas. The anterior ribs are more
conspicuous and beaded with small tubercles. Sieve-pores particularly prominent. Anterior
vestibulum relatively broad. Distal process of male copulatory appendage relatively small and
rounded.
Explanation of Plate 13, 74
Fig. 1, 9 LV, ext. lat. (1.56.09, 640 pm long); figs. 2-5, cf RV (1986.392, 580 /u.m long): fig. 2. int. lat. ; figs. 3, 4, ant. and post, hinge
elements; fig. 5, central muscle scar field.
Scale A (100/a.m; X 95), figs. 1, 2; scale B (25 gm; x600), figs. 3, 4; scale C (25/j.m; x400), fig. 5.
Eucythere argus (2 of 6)
Stereo-Atlas of Ostracod Shells 13, 72
Eucythere argus (4 of 6)
Stereo-Atlas of Ostracod Shells 13, 74
Stereo-Atlas of Ostracod Shells 13, 75 Eucythere argus (5 of 6)
Remarks: Klie (1929, op. cit.) described a new species, E. undulata , from the Baltic Sea, distinguishing it
from E. argus on the basis of minor differences in carapace outline. Our specimens from Britain
and the Baltic closely match Sars" (1925, op. cit ) illustrations of E. argus in carapace outline, while
their male copulatorv appendages are identical w'ith those of Klie's syntypes of E. undulata (the
valves of which are unfortunately decalcified) (see Text-fig. 1). Although the carapace outline of
E. argus as illustrated by Sars (1925) is more elongate than that of Klie’s type illustrations of E.
undulata. both forms appear to fall within the range of variation seen in our material. Sars did not
illustrate the male copulatorv appendage of E. argus. and although Klie (1938) illustrated a male
copulatorv appendage of what he regarded as the true E. argus. he did not illustrate the carapace
of his specimen. In our opinion the differences in outline observed in both carapaces and
copulatorv appendages are minor and do not warrant the distinction of two species; we therefore
regard E. undulata as a junior synonym of E. argus.
Some of the specimens identified as E. declivis by Wagner (1957, op. cit.) can be referred to
E. argus (see Horne & Whittaker. Stereo-Arias Ostracod Shells 12, 1-6, 1985).
Distribution: Recent: a fairly common marine sublittoral species in NW European and Scandinavian waters,
having been recorded from the coasts of Britain (Brady, op. cit. and herein), the Netherlands
(Wagner, op. cit.) and Norway (Sars, op. cit.). as well as in the Baltic (Klie, op. cit. ; Rosenfeld,
op. cit.).
Pleistocene: Britain (Brady, Crosskey & Robertson, op. cit.) and eastern Canada (Cronin,
op. cit.).
Stereo- Atlas of Ostracod Shells 13, 76 Eucythere argus (6 of 6)
Text-fig. 1. Eucythere argus. a-c, appendages of cf syntype of E. undulata-. a, copulatory appendages; b, antenna; c, antennula. d-e,
Cf appendages (1.56.11): d, antennula; e, antenna, f, male copulatory appendage (1986.392). g, 9 RV drawn in
transmitted light (1.56.10). h, i, dorsal outlines of RV’s: h, cf (1.56.12); i, $ (1.56.09).
Stereo-Atlas of Ostracod Shells: Vol. 13, Part 1
CONTENTS
13 (1) 1-8
13 (2) 9-16
13 (3) 17-20
13 (4) 21-24
13 (5) 25-28
13 (6) 29-32
13 (7) 33-38
13 (8) 39-46
13 (9) 47-50
13 (10) 51-54
13 (11) 55-58
13 (12) 59-62
13 (13) 63-66
13 (14) 67-70
13 (15) 71-76
On Cytheretta (Cytheretta) semipunctata Bornemann); by R. H. Weiss
On Cytheretta (Cytheretta) jurinei (v. Munster); by R. H. Weiss
On Paracytheromorpha rimafossa Maybury & Whatley gen. et sp. nov. ; by C.
A. Maybury & R. C. Whatley
On Retinoda sulcata (Kntipfer): by R. E. L. Schallreuter
On Wehrlia olbertzae Schallreuter; by R. E. L. Schallreuter
On Beyrichia ( Altibeyrichia ) kiaeri Henningsmoen; by P. D. Pollicott
On Aurila woutersi Horne sp. nov.; by D. J. Horne
On Veenia ( Nigeria ) nigeriensis Reyment; by R. Reyment & E. Reyment
On Bairdia jammuensis Singh & Tewari, by P. Singh
On Paracypris jhingrani Singh & Tewari: by P. Singh
On Eocytheridea kirtlingtonensis Bate & Mellish sp. nov.; by R. H. Bate & C.
Mellish
On Cythereis lindiensis Bate; by R. H. Bate & C. Mellish
On Navarracy there estellensis Colin & Rodriguez-Lazaro gen. et sp. nov.; by
J. P. Collin & J. Rodriguez-Lazaro
On Kefiella maresi Donze & Said; by J. P. Colin
On Eucy there argus (Sars); by D. J. Horne & A. Rosenfeld
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