- Alligator - Alligators
- Alligator mississippiensis - American Alligator
- Caiman - Caimans
- Caiman crocodilus - Spectacled Caiman
- C. c. fuscus - Chiapan Caiman
- Caiman crocodilus - Spectacled Caiman
- Crocodylus - Crocodiles
- Crocodylus acutus - American Crocodile
- Crocodylus moreletii - Morelet's Crocodile
- Paleosuchus - Smooth-fronted Caimans
- Paleosuchus palpebrosus - Dwarf Caiman