Amnicythere sp. 2

RAUSCH, LEA, STOICA, MARIUS & LAZAREV, SERGEI, 2020, A Late Miocene - Early Pliocene Paratethyan Type Ostracod Fauna From The Denizli Basin (Sw Anatolia) And Its Palaeogeographic Implications, Acta Palaeontologica Romaniae 16 (2), pp. 3-56 : 35

Amnicythere sp. 2

Fig. 24 i-q

Description. This species has an elongated carapace with a much wider and flattened anterior end in comparison to the posterior one. The dorsal margin is straight and pointed towards the posterior. The ventral margin shows a clear concavity at mid-length. The ornamentation is weakly pronounced and varies from finely pitted to areas that bear a reticulated pattern, mainly concentrated in the median region and posterior parts. Within the anterior half of the valve any kind of ornamentation is almost absent. In the postero – ventral part a more or less visible tubercula can be noticed that we interpret to be related to the sexual dimorphism. Medium sized conulus pores are present along the anterior-and posterior margins. The inner lamella is moderately developed in the anterior part and narrower along the posterior boarder. The hinge on the RV valve shows a long thin smooth median bar with two elongated, subdivided teeth at both ends. Dimension: L = 0,49 – 0,54 mm, H = 0,25 – 0,29 mm, the minimum sizes include juveniles too.

Figures

Fig. 24a-h Euxinocythere (Maeotocythere) bosqueti; a, c LV, external view, ♂; b RV, external view, ♂; d RV, external view, ♀; e LV, external view, ♀; f LV, internal view, ♀; g Carapace, dorsal view, ♀; h Carapace, ventral view, ♂; i-q Amnicythere sp. 2; i, k LV, external view; j RV, external view; l LV, external view,?♂; m RV, external view, ♂; n RV, internal view,?♂; o, p LV, external view; q RV, external view; (all specimens from section B; a-h from sample 69 m; i-q from sample 30,5 m).