Aglaiocypris ” sp., 1947

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 : 46-48

“ Aglaiocypris ” sp.

Fig. 10 F–G

Material examined

ROMANIA • 1 complete carapace; Black Sea , Romanian Continental Shelf , borehole 817LV, sample CM31A; Rhaetian, Upper Triassic; MNHN.F. F63266 • 1 complete carapace; same locality as for preceding but sample CM31C; Rhaetian, Upper Triassic; MNHN.F. F63267 • 2 complete carapaces; same locality as for preceding but sample CM31B; Rhaetian, Upper Triassic; MNHN.F. F63357 .

Dimensions

RV: L = 333–482 µm; H = 162–243 µm; H/L = 0.46–0.49.

LV: L = 333–482 µm; H = 162–243 µm; H/L = 0.48–0.5.

Occurrence

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

Remarks

The present species is close to Aglaiocypris ? sp. from the Ladinian, Middle Triassic, of Spain ( Kozur et al. 1974). This species is morphologically similar to Fabalicypris ? sp. A in Ainsworth 1990 from the Hettangian, Early Jurassic, from Ireland ( Ainsworth 1990), but the carapace of the present species is thinner, with H max located more anteriorly, shorter and more rounded ADB, and AB more rounded and less bairdiid. These characters are closer to those of Aglaiocypris as described in Kozur et al. (1974).

Figures

Fig. 10 (opposite page). 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–D. Petasobairdia amazonella Forel sp. nov. A. Right lateral view of a carapace, sample CM31A (MNHN.F.F63263). B. Holotype, external view of a left valve, sample CM31C (MNHN.F.F63264). C. Same specimen, inner view, square indicates the area enlarged in D. D. Line drawing of the adductor muscle scar field of the paratype marked in C. E. Rectonariidae gen. 1 in Forel et al. 2019, external view of a right valve, sample CM31C (MNHN.F.F63265). F–G. “Aglaiocypris” sp. F. Right lateral view of a carapace, sample CM31A (MNHN.F.F63266). G. Right lateral view of a carapace, sample CM31C (MNHN.F.F63267). H–N. Paracypris ovidi Forel sp. nov. H. Holotype, right lateral view of a carapace, sample CM31B (MNHN.F.F63268). I. Paratype 2, right lateral view of a carapace, sample CM31B (MNHN.F.F63269). J. Right lateral view of a carapace, sample CM31B (MNHN.F.F63270). K. Paratype 1, right lateral view of a carapace, sample CM31B (MNHN.F.F63271). L. Right lateral view of a carapace, sample CM31C (MNHN.F.F63272). M. Right lateral view of a carapace, sample CM31A (MNHN.F.F63273). N. Same specimen, dorsal view. O. Paracypris cf. Paracypris sp. 1 in Lord & Lambourne 1991, right lateral view of a carapace, sample CM31A (MNHN.F.F63274). P–Q. Paracypris sp. 1. P. Right lateral view of a carapace, sample CM31B (MNHN.F.F63275). Q. Right lateral view of a carapace, sample CM31C (MNHN.F.F63276).R–U. Paracypris sp. 2. R. Right lateral view of a carapace, sample CM31B (MNHN.F.F63277). S. Right lateral view of a carapace, sample CM31C (MNHN.F.F63278). T. Right lateral view of a carapace, sample CM31A (MNHN.F.F63279). U. Right lateral view of a carapace, sample CM31B (MNHN.F.F63280). Scale bars: 100 µm.