Subfamily Alligatorinae Genus Alligator Genus Allognathosuchus (extinct) Genus Arambourgia (extinct) Genus Ceratosuchus (extinct) Genus Chrysochampsa (extinct) Genus Hassiacosuchus (extinct) Genus Krabisuchus (extinct) Genus Navajosuchus (extinct) Genus Procaimanoidea (extinct) Genus Protoalligator (extinct) Genus Wannaganosuchus (extinct)