alligator ribs

Are Alligators Fish? So, even though alligators are classified as reptiles along with lizards, snakes, and turtles, they are actually more closely related to birds, whose direct ancestors were dinosaurs! Are alligators fish or mammals? American alligator Temporal range: Miocene–Recent, Kingdom:Animalia Phylum: Chordata Class: Reptilia Order: Crocodilia Is an alligator a fish or reptile? Alligators