Genus Praefusulinella Akbaş, n. gen.

urn:lsid:zoobank.org:act: 2971ADCE-8942-4F7D-AD06-E8902541AC2B

TYPE SPECIES. — Praefusulinella okuyucui Akbaş, n. sp.

DIAGNOSIS. — Test large, subspherical to ovoid and planispiral. Wall is four-layered. Septa slightly folded. Chomata massive, spherical to subquadrate in shape.

ETYMOLOGY. — Latin prae, previous, because of the similarity and a possible ancestor of the genus Fusulinella Möller.

INCLUDED TAXA. — Praefusulinella guvenci Akbaş, n. gen., n. sp. (Figs 14N, O; 15A), Praefusulinella okuyucui Akbaş, n. gen., n. sp. (Fig. 15 C-G), Praefusulinella rhombiforma Akbaş, n. gen., n. sp. (Fig. 16 A-C) and Praefusulinella tekini Akbaş, n. gen., n. sp. (Fig.16 E-I).

STRATIGRAPHIC RANGE. — Upper Moscovian.

OCCURRENCE. — Gölbelen and Bademli sections of the Hadim Nappe (BozkIr/ Konya; Bademli-Akseki/ Antalya, Central Taurides, Turkey).

DESCRIPTION

Test large in size, entirely planispiral and involute, subspherical to ovoid in shape, or subrhomboidal in some specimens with spherical initial volutions. The coiling of the spiral is moderately tight and followed by some loosely coiled last volution in some adult forms. Wall is thick and four-layered including tectum, diaphanotheca, lower and upper tectorium. Septa regularly and slightly folded across the centre of the test and folded near the polar extremities. Chomata are massive, symmetrical and rounded to subquadrate or short ribbon-like in some specimens.

REMARKS

Praefusulinella Akbaş, n. gen. is similar to the genus Fusulinella concerning the wall structure and septal fluting. However, the new genus differs by its thick wall, inflated subspherical to ovoid test shape and spherical initial volutions.