Eperisocrinus New Genus (Crinoidea,Inadunata): Type Species Delocrinus Missouriensis Miller and Gurley, 1890
Creators:Burke, J. J.
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Citation:The Ohio Journal of Science. v77, n4 (July-August, 1977), 174-178
Reexamination of the holotype specimen of Delocrinus missouriensis showed that it is referable to the Erisocrinidae, rather than to the Catacrinidae, the family to which Delocrinus is presently assigned. A new genus, Eperisocrinus, with Delocrinus missouriensis the type species, is proposed, based on the following characters: Dorsal cup with radial plates having articular facets and obtuse proximal angles, essentially as in Erisocrinus but differing in having a considerably higher basal impression; infrabasal plates much more reduced and steeper walled adjacent to the stem; larger basal plates; interbasal and interradial sutures nearly equal in length; and anal X represented on outer wall of cup.
Author Institution: Cleveland Museum of Natural History
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