Loxoconcha ex. gr. petasa ( Livental, 1929 ), 2020

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 : 44

Loxoconcha ex. gr. petasa ( Livental, 1929)

Fig. 29 a-j

Description. These specimens have the same outline as L. petasa but display a different kind of ornamentation. The valves surface is covered by a similar but smaller sized and much more irregular pronounced polygonal pattern. Some specimens, in particular juveniles, show a secondary reticulation inside the primary one. The crests that separate the polygons appear thinner and sharper than in L. petasa . Conules pores are pronounced, stronger than in L. petasa and distributed randomly but mainly in the posterior half of the valve. Dimension: L = 0,65 – 0,71 mm, H = 0,36 – 0,39 mm, the minimum sizes include juveniles too.

Figures

Fig. 29a-j Loxoconcha ex. gr. petasa; a, c LV, external view, ♂; b, d RV, external view, ♂; e, g LV, external view, ♀; f RV, external view, ♀; h RV, internal view, ♀; i RV, external view, A1 juvenile; j LV, external view, A2 juvenile; (all specimens from section B, sample 84 m).