Cardobairdia sp. 3

Fig. 12 D–F

Material examined

ROMANIA • 1 complete carapace; Black Sea, Romanian Continental Shelf, borehole 817LV, sample CM31C; Rhaetian, Upper Triassic; MNHN.F. F63302 • 1 RV; same collection data as for preceding; Rhaetian, Upper Triassic; MNHN.F. F63362 • 1 complete carapace; same locality as for preceding but sample CM31A; Rhaetian, Upper Triassic; MNHN.F. F63303 .

Dimensions

RV: L = 275–354 µm; H = 143–203 µm; H/L = 0.59–0.64.

LV: L = 283–299 µm; H = 168–192 µm; H/L = 0.52–0.59.

Occurrence

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

Remarks

Cardobairdia sp. 3 is very close to Cardobairdia cf. liassica (Drexler, 1958) in Monostori 2008 from the Pliensbachian of Hungary (Monostori 2008: pl. 1, fig. 8). Cardobairdia has been attributed to the Sigilliidae, which are merodont hinge ostracods (e.g., Tabuki & Hanai 1999; Olempska 2001). Cardobairdia shows a crenulate posterior tooth, which might correspond to a merodont hingement. However, the ventral bar is not visible, so it is not possible to assess with certainty that it is crenulate or whether the lobes occur before and after the anterior and posterior teeth.