Acroculia protei- Capulus cornuforme
- Capulus parva
- Orthonychia acuta
- Orthonychia acutirostris
- Orthonychia cassensis
- Orthonychia clarki
- Orthonychia compressa
- Orthonychia elegans
- Orthonychia jeffersonensis
- Orthonychia mayesense
- Orthonychia prosseri
- Orthonychia unguiculata
- Orthonychia ungula
- Platyceras aroostooki
- Platyceras belli
- Platyceras campanulatum
- Platyceras conicum
- Platyceras cornutum
- Platyceras enorme
- Platyceras spinigerum
- Platyceras subrectum
- Platyceras tortuosum
- Platyceras vomerium