Schizocrania hornyi ( HAVLÍČEK , 1972)

Mergl, Michal & Nolčová, Lucie, 2016, Schizocrania (Brachiopoda, Discinoidea): Taxonomy, Occurrence, Ecology And History Of The Earliest Epizoan Lingulate Brachiopod, Fossil Imprint 72 (3 - 4), pp. 225-238 : 227

Schizocrania hornyi ( HAVLÍČEK, 1972)

Pl. 1, Figs 16–24, Pl. 2, Figs 1–8

1972 Ptychopeltis hornyi sp. n.; Havlíček, p. 232, pl. 1, figs 3 – 6.

D e s c r i p t i o n. Havlíček (1972).

R e m a r k s. The distinguishing feature of this species is coarse costellation ( Havlíček 1972) of high rounded costellae, with narrower interspaces rarely supplemented by a secondary intercalated costellae. Preservation is exclusively in quartzitic sandstone, which preserves the original convexity, but fine ornamentation details are absent. Almost all preserved specimens have rectimarginal anterior commissure, apart from the single specimen figured by Havlíček (1972: pl. 1, fig. 3). S. hornyi apparently preferred conulariid hosts or large orthocone cephalopods.

O c c u r r e n c e. Libeň Formation, Řevnice Quartzite (lower Sandbian) (localities: Cekov (small hill south of the village), Čilina hill near Rokycany (abandoned quarry at Plzeňská Čilina, north slope of Čilina hill, summit platform of the hill), Kařezská hora hill near Kařízek, Stradiště hill near Starý Plzenec, Tymákov (NW slope Sutice hill)). Letná Formation, lower part (mid-Sandbian) (localities: Děd hill at Beroun, Starý Plzenec (Černá stráň, valley of Úslava river NW from the town), Trubín).