Eukaryota  >  Metazoa  >  Chordata  >  Crocodylia

Genus	Species
Alligator	2
Caiman	5
Crocodylus	15
Gavialis	1
Mecistops	2
Melanosuchus	1
Osteolaemus	6
Paleosuchus	2
Tomistoma	1
Voay	1