Carcharodon hubbelli
Lamnidae
Carcharopsis wortheni
Cardita protracta
Carditidae
Cardium alicula
Cardiidae
Cardium simrothi
Cardiidae
Castor canadensis
Castoridae
Castoroides ohioensis
Castoridae
Cavusodus whitei
Janassidae
Ceratodus fossanovum
Ceratodontidae
Ceratodus frazieri
Ceratodontidae
Cerithium caloosaense
Cerithiidae
Cervus canadensis
Cervidae
Chama caloosana
Chamidae
Chelosphargis advena
Protostegidae
Chelydra serpentina
Chelydridae
Chondrites bollensis
Cimoliasaurus magnus
Cimoliasauridae
Cimolichthys nepaholica
Enchodontidae
Cincosaurus cobbi
Cincosaurus jaggerensis