Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)
Occurrence af echinodenns in the Quarry "Kosov" near Beroun (Silurian: Wenlock-Ludlow), Barrandian, Czech Republic
Abstract
The research of the Silurian sequence (Wenlock-Ludlow) exposed in the Kosov Quarry near Beroun carried out during the last three years has resulted in a great deal of new data about the occurrence and stratigraphical distribution of echinoderms (particularly crinoids) in this locality. Four horizons containing skeletal ossicles of echinoderms have been ascertained in the open sections of the quarry; the most important one is represented by grey, micritic limestones of upper Ludfordian age with the re- presentative trilobite Ananaspis fecunda. In these limestones among others, crinoids of the genus Lampierocrinus, known till present only from the Middle Silurian, Niagaran from Tennessee, USA, were found. The table shows a]] echinoderm taxa that have been described, ascertained or verified in the Silurian sequence of the Kosov Quarry. The newly discovered taxa are marked by an asterisk.
