Platycrinites are an extinct genus of Paleozoic stalked crinoids belonging to the family Platycrinitidae. These stationary upper-level epifaunal suspension feeders lived during the Devonian, Permian and the Carboniferous periods, from 376.1 to 259.0 Ma. These moderate sized extinct crinoids had a columnar stem with a twisted pattern. On top of the...
Found on
http://en.wikipedia.org/wiki/Platycrinites
genus of extinct crinoids, or sea lilies, especially characteristic as fossils of Early Carboniferous marine deposits (360 to 320 million years ...
Found on
http://www.britannica.com/eb/a-z/p/78
No exact match found.
