Crucibulum (crucibulum) auricula
Calyptraeidae
Ctenerpeton primum
Urocordylidae
Ctenocrinus typus
Cucullaea capax
Cucullaeidae
Cuneolus tippana
Mytilidae
Cyrilavis olsoni
Halcyornithidae
Dakoticancer australis ?
Dakoticancridae
Dasciocrinus florialis
Dasypus bellus
Dasypodidae
Deinosuchus rugosus
Crocodylidae
Deinosuchus schwimmeri
Crocodylidae
Dinotocrinus compactus
Staphylocrinidae
Diplodonta leptodoma
Ungulinidae
Discoscaphites conradi
Scaphitidae
Discoscaphites iris
Scaphitidae
Divaricella waltonia
Lucinidae
Drillia trypanion
Drilliidae
Echinochama arcinella
Chamidae
Ectenosaurus shannoni
Mosasauridae
Enchodus ferox
Dorypteridae