Cidaris, Leske, 1778

Richard Pokorný, Jaroslav Kaše, Jiří Kvaček, Kamil Zágoršek, Kočí, Tomáš & Žítt, Jiří, 2012, Fossils In Late Cretaceous To Early Palaeocene Flint Nodules Embedded In Pleistocene Glaciofluvial Sediments Near Fukov (Děčín District, Northern Bohemia), Acta Musei Nationalis Pragae Series B 68 (3 - 4), pp. 119-131 : 123

Cidaris (?) sp. B

Pl. 3, fig. 6

M a t e r i a l: 1 incomplete interambulacral plate, collection number FZP/P/12/2-3/020.

D e s c r i p t i o n: The plate has a large and only slightly sunken areole, mamelon perforated, incompletely preserved but probably with a diameter only slightly smaller than the diameter of the platform. The platform with very soft dense ridges, resembling crenellae. They are not developed on the platform margin. Extrascrobicular surface with many small tubercles (badly preserved). Scrobicular tubercles and adradial margin of the plate unpreserved.

R e m a r k s: Affinity of this species to the above described Tylocidaris (Tylocidaris) sp. may be almost excluded ( Tylocidaris has no platform crenulation in interambulacral plates). Considering the overall morphology and many small and dense extrascrobicular miliary tubercles, the affinity of our plate to Temnocidaris COTTEAU, 1863 is possible ( Smith and Wright 1989).

Ordo: Phymosomatoida MORTENSEN, 1904