Crinoidea
Classification Phylum: Echinodermata Class: Crinoidea (Miller, 1821) Cincinnatian Orders: Cladida, Diplobathrida, Disparida, Lichenocrinus, Monobathrida Geologic Range Middle Cambrian; Late Ordovician – Holocene Common Paleoecology Crinoidea is an extant class of stationary upper-level epifaunal suspension feeders Characteristics of the Class Well …