Iocrinus
Iocrinus is an extinct genus of crinoid. It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales.- Iocrinus brithdirensis
- Iocrinus crassus
- Iocrinus pauli
- Iocrinus shelvensis
- Iocrinus similis
- Iocrinus subcrassus
- Iocrinus trentonensis
- Iocrinus whitteryi