Aacocrinus
Aacocrinus is a genus of extinct sea lily from the Actinocrinitidae family.
There are currently 14 species within this genus:Aacocrinus acylus Aacocrinus algeriaensis Aacocrinus boonensis Aacocrinus chouteauensisAacocrinus enigmaticus Aacocrinus milleriAacocrinus nododorsatus Aacocrinus protuberoarmatus Aacocrinus sampsoniAacocrinus senectusAacocrinus spinosulusAacocrinus spinulosusAacocrinus tetradactylus
- ''Aacocrinus triarmatus''