Acratia sp. 1

Fig. 5B

Material examined

ROMANIA • 1 RV; Black Sea, Romanian Continental Shelf, borehole 817LV, sample CM31C; Rhaetian, Upper Triassic; MNHN.F. F63182 .

Dimensions

L = 343 µm; H = 147 µm; H/L = 0.43.

Occurrence

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

Remarks

The small dimensions of this specimen indicate that it may be an immature stage. However, its very rounded anterior margin and downward pointing posterior extremity preclude it from being attributed to any of the co-occurring species of Acratia . Acratia sp. 1 is close to Paracypris sp. 1 in Lord & Lambourne 1991 from the Early Jurassic of Turkey (Lord & Lambourne 1991) and to Paracypris cf. Paracypris sp. 1 in Lord & Lambourne 1991 in the present paper (Fig. 10O). However, the small anteroventral concavity of the present specimen relates it to the genus Acratia . Acratia sp. 1 is also related to A. kollmanni Forel in Forel et al., 2019 from the Carnian, Late Triassic, of Turkey (Forel et al. 2019a) as shown by its anterior and posterior extremities being located very low, with a uniformly rounded dorsal margin. However, A. kollmanni is shorter and higher and has a more incised antero-ventral concavity.