Thecal cup of the crinoid Edriocrinus preserved inside the shell of an orthocone cephalopod: Middle Devonian, (Eifelian) from Bohemia
Rudolf J. Prokop, Vojtěch Turek
We describe an almost complete cup of the flexible crinoid genus Edriocrinus found in the Acanthopyge Limestone (Eifelian) in the Koněprusy region. The articulated cup, composed of an anal X and well defined radial plates, is preserved inside the living chamber of an orthocone cephalopod. This cup represents the stratigraphically youngest occurrence of the crinoid Edriocrinus in Bohemia.