Tyrrhenocythere sp. 2

Rausch, Lea & Stoica, Marius, 2019, AN EARLY PLEISTOCENE ANOMALOHALINE WATER OSTRACOD FAUNA FROM LAKE DEPOSITS OF THE HOMO ERECTUS-BEARING KOCABAŞ LOCALITY (SW TURKEY), Acta Palaeontologica Romaniae 15 (2), pp. 41-69 : 8

Tyrrhenocythere sp. 2

Description. The carapace is rectangular in lateral view. The anterior end is broadly rounded and passes smoothly onto the ventral margin that shows a depression in the anterior third of the valve. This feature and other characteristics, excluding the ornamentation, are far more visible from the interior view. The posterior end bears a shoulder under which it is rounded. The greatest height is in the anterior third of the valve. From that point the dorsal margin slopes and passes smoothly onto the anterior end. Towards the posterior it dips gently before steeply sloping above the mentioned shoulder. The valves surface appears smooth but also displays weakly and irregularly distributed pitted-type ornamentation. Towards the posterior-and the anterior end medium-sized longitudinally running meshes are visible. The degree of the described ornamentation varies strongly between individual specimens. The marginal zone is broad and displays a number of branched pore channels. Dimension: Male: l = 0,97 – 0,10 mm, h = 0,50- 0,52 mm; Female: l= 0,80 – 0,85 mm; h = 0,46 - 0,50 mm.