New species of crinoids based on their columnals and stem fragments (col.), from the Lower Devonian Zlíchov Limestone (Barrandian area, Czech Republic)

Pages

133-138

Citation

PROKOP, Rudolf J. a SLÁMOVÁ, Radana. New species of crinoids based on their columnals and stem fragments (col.), from the Lower Devonian Zlíchov Limestone (Barrandian area, Czech Republic). Fossil Imprint / Acta Musei Nationalis Pragae, Series B – Historia Naturalis. Prague: National Museum, 2012, 68(3-4), 133-138. ISSN 2533-4050 (tisk), 2533-4069 (online). Also available from: https://www.nm.cz/en/periodicals/fiamnpsbhn/68-3-4/new-species-of-crinoids-based-on-their-columnals-and-stem-fragments-col-from-the-lower-devonian-zlichov-limestone-barrandian-area-czech-republic

Fossil Imprint / Acta Musei Nationalis Pragae, Series B – Historia Naturalis | 2012/68/3-4

Abstract. The washings from the weathered biosparitic limestones of the “Chapel Horizon” at the base of Zlíchov Limestone (Lower Emsian) in the Barrandian area yielded among others a bulk of isolated skeletal remains of crinoids. These remains consisted of columnals and stem fragments of genera and species to date unknown in the Lower Devonian of Bohemia. Four new taxa from the remains are described in the present study: Pentacauliscus stellatus sp. n. (col.), Floripila formosa sp. n. (col.), Salairocrinus apertus sp. n. (col.) and Mediocrinus stukalinae sp. n. (col.). The columnals and stem fragments of species very similar to the species here described were also obtained from the washings of weathered sparitic bioclastic Koněprusy Limestone of Pragian age which is exposed both in the “Čertovy schody – West” Quarry near Koněprusy and “Čertovy schody – East” Quarry near Suchomasty.

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