Jump to content

Delocrinus

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Awkwafaba (talk | contribs) at 17:31, 5 September 2018 (Automatic taxobox and taxonbar. removed unclear picture). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Delocrinus
Temporal range: Carboniferous–Permian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Crinoidea
Order: Dendrocrinida
Family: Catacrinidae
Genus: Delocrinus
Miller and Gurley 1890
Species

Delocrinus is a genus of extinct crinoids, belonging to the family Catacrinidae.

They can be found in Kansas Nebraska Nevada Oklahoma, Arizona, Iowa, Texas, Utah and Virginia.

Delocrinus missouriensis was made the state fossil of Missouri in 1989.[citation needed]

Description

Like extant crinoids, Delocrinus species was anchored to a hard surface by a holdfast out of which grew an articulated stalk. On top of this was a calyx with a number of feather-like arms. Each arm bore short branches known as pinnules and from these cirri were extended which sifted plankton from the water flowing past.[1]

References

  1. ^ Dorit, R. L.; Walker, W. F.; Barnes, R. D. (1991). Zoology. Saunders College Publishing. pp. 790–792. ISBN 978-0-03-030504-7.