Pokornyopsis? sp. 2, Kozur, 1974

Forel, Marie-Béatrice & Grădinaru, Eugen, 2020, Rhaetian (Late Triassic) ostracods (Crustacea, Ostracoda) from the offshore prolongation of the North Dobrogean Orogen into the Romanian Black Sea shelf, European Journal of Taxonomy 727, pp. 1-83 : 59-60

Pokornyopsis? sp. 2

Fig. 13 D–E

Material examined

ROMANIA • 1 complete carapace; Black Sea , Romanian Continental Shelf , borehole 817LV, sample CM31A; Rhaetian, Upper Triassic; MNHN.F. F63319 • 1 complete carapace; same collection data as for preceding; Rhaetian, Upper Triassic; MNHN.F. F63320 .

Dimensions

LV ( Fig. 13D ): L = 289 µm; H = 258 µm.

RV ( Fig. 13E ): L = 228 µm; H = 203 µm.

Occurrence

Romanian Continental Shelf, Black Sea, Rhaetian, Upper Triassic (this paper).

Remarks

Pokornyopsis ? sp. 2 is close to Polycope ? or Thaumatocypris ? sp. from the Jurassic of Tethys ( Oertli 1972: pl. 3, figs 39–42) in having a sharp and pointed outline of the rostrum. However, the ornamentation

of the present specimen is much stronger than in the Jurassic material. Furthermore, a postero-dorsal nodule is apparently present and relates the present specimen to the genus Pokornyopsis , which is not reported in Oertli (1972).

Figures

Fig. 13. SEM micrographs of ostracods from borehole 817 Lebăda Vest, drill core CM31, western portion of Black Sea shelf, Rhaetian, Late Triassic. All specimens are housed in the collections of the Muséum national d’histoire naturelle, Paris, France (MNHN). A. Leviella sp., external view of a left valve, sample CM31C (MNHN.F.F63317). B–C. Pokornyopsis sp. 1. B. Left lateral view of a carapace, sample CM31B (MNHN.F.F63318). C. Same specimen, dorsal view. D–E. Pokornyopsis? sp. 2. D. Left lateral view of a carapace, sample CM31A (MNHN.F.F63319).E. Right lateral view of a carapace, sample CM31A (MNHN.F.F63320). F. Pokornyopsis sp. 3, left lateral view of a carapace, sample CM31A (MNHN.F.F63321). G–I. Hungaroleberis sp. 1. G. Left lateral view of a carapace, sample CM31B (MNHN.F.F63322). H. Left lateral view of a carapace, sample CM31C (MNHN.F.F63323). I. Left lateral view of a carapace, sample CM31A (MNHN.F.F63324). J–L. Hungaroleberis sp. 2. J. Right lateral view of a carapace, sample CM31A (MNHN.F.F63325). K. Right lateral view of a carapace, sample CM31A (MNHN.F.F63326). L. Left lateral view of a carapace, sample CM31A (MNHN.F.F63327). M. Polycope sp. 1, lateral view of a carapace, sample CM31A (MNHN.F.F63328). N. Polycope sp. 2, lateral view of a carapace, sample CM31B (MNHN.F.F63329). O. Polycope sp. 3, lateral view of a carapace, sample CM31A (MNHN.F.F63330). P. Polycope sp. 4, lateral view of a carapace, sample CM31C (MNHN.F.F63331). Scale bars: 100 µm.