Aorocrinus immaturus
- kingdom: Animalia
- phylum: Echinodermata
- class: Crinoidea
- order:
- family: Coelocrinidae
- genus: Aorocrinus
- species: Aorocrinus immaturus
Marshalltown
Iowa- Osceola
Missouri
United States
Aorocrinus immaturus Marshalltown Osceola