Uintacrinus

{{Short description|Extinct genus of crinoids}}

{{Italic title}}

{{Taxobox

| name = Uintacrinus

| fossil_range = Cretaceous

| image = From the Niobrara Formation during the Upper Cretaceous in Western Kansas, US, Uintacrinus socialis Grinnell.jpg

| image_caption =

| regnum = Animalia

| phylum = Echinodermata

| subphylum = Crinozoa

| classis = Crinoidea

| ordo = Uintacrinida

| genus = Uintacrinus

| genus_authority =

| subdivision_ranks = Species

| subdivision=

• U. socialis

}}

Uintacrinus ("crinoid from the Uinta Mountains") is an extinct genus of crinoids from the Cretaceous of Kansas. It was unusual among crinoids because it had no stalk, and probably floated above the seafloor.Mike Everhart, (2004). http://www.oceansofkansas.com/Uintacrinus.html It lived in the Western Interior Seaway. This crinoid was a colonial animal with ten long arms each that it used to capture prey.Mike Everhart, (2004). http://www.oceansofkansas.com/Uintacrinus.html

File:AMNH Uintacrinus socialis (crinoid).jpg preserving at least 65 U. socialis individuals. Collected in Kansas.]]