Monday, April 29, 2024

Ectenocrinus simplex Crinoid Calyx Fossil

This fossil appears to be an Ectenocrinus (Heterocrinus) simplex (Hall, 1847) crinoid calyx fossil. It was found by Lucien Beckner (1872-1963) in 1932 in the blue shale of Henry County Kentucky, USA. The fossil dates to the Ordovician Period.



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