Learn how to say Crocodilia correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word crocodilian:
any large predatory reptile of the order Crocodilia, which includes the crocodiles, alligators, and caymans. They live in or near water and have a long broad snout, powerful jaws, a four-chambered heart, and socketed teeth
of, relating to, or belonging to the Crocodilia
of, relating to, or resembling a crocodile