Borings in thecae of echinoids from the locality Radovesice (Turonian, Bohemian Cretaceous Basin, Czech Republic)


Radek Mikuláš, Zdeněk Dvořák

Geoscience Research Reports 36, 2003 (GRR for 2002), pages 132–133
Map sheets: Bílina (02-34)

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Narrow, moderately curved, irregularly branching surficial grooves, less frequently cylindrical tunnels, occur on tests of irregular echinoid Micraster sp. on the locality Radovesice (Turonian, Bohemian Cretaceosus Basin). These borings are interpreted as post-mortal dwelling or feeding-dwelling borings and compared with the ichnogenus Conchotrema Teichert.