Delocrinus
Genus of animal
From Wikipedia, the free encyclopedia
Delocrinus is a genus of extinct crinoids, belonging to the family Catacrinidae.[1] Specimens have been found in Kansas, Missouri, Nebraska, Nevada, Oklahoma, Arizona, Iowa, Texas, Utah and Virginia.
| Delocrinus Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Crinoidea |
| Order: | †Dendrocrinida |
| Family: | †Catacrinidae |
| Genus: | †Delocrinus Miller and Gurley, 1890 |
| Species | |
| |
Eperisocrinus missouriensis, formerly Delocrinus missouriensis, was made the state fossil of Missouri in 1989.[2]
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.[3]