Quasidavidsonia HAVLÍČEK , 1987

Mergl, Michal & Budil, Petr, 2019, Rhynchonelliform Brachiopods And Trilobites Of The ‘ Upper Dark Interval’ In The Koněprusy Area Devonian, Eifelian, Kačák Event; The Czech Republic, Fossil Imprint 75 (1), pp. 92-107 : 98

Genus Quasidavidsonia HAVLÍČEK, 1987

T y p e s p e c i e s. Prodavidsonia vicina HAVLÍČEK, 1967 ; Choteč Formation, Eifelian; Bohemia, the Czech Republic.

Quasidavidsonia mediocarinata ( HAVLÍČEK, 1967) Pl. 2, Fig. 15

1967 Prodavidsonia mediocarinata sp. n.; Havlíček, p. 215, pl. 49, figs 10–14.

1990 Quasidavidsonia mediocarinata ( HAVLÍČEK, 1967) ; Havlíček and Kukal, p. 166, pl. 3, figs 11–15.

M a t e r i a l. One dorsal valve (PCZCU 2285).

D e s c r i p t i o n. The valve is 12 mm wide and 8.5 mm long, with a thick shell-wall. The dorsal valve is semicircular, weakly convex in transverse profile and moderately convex in axial profile, with a narrow shallow sulcus and flattened posterolateral corners.

R e m a r k s. A single poorly preserved dorsal valve is known from the UDI. Its size and profile is consistent with affiliation to Q. mediacarinata HAVLÍČEK, 1967 . This is a common species in the Acanthopyge Limestone ( Havlíček and Kukal 1990), but the genus ranges from the Emsian to the upper Givetian.

O c c u r r e n c e. UDI, sample TM 12.