crocodilian

Any reptile of the order Crocodilia; a crocodile, alligator, caiman or gavial.

1989, Walter P. Coombs, Jr., Modern analogs for dinosaur nesting and parental behavior, James Orville Farlow (editor), Paleobiology of the Dinosaurs, Issue 238, page 47, Mound-nesting crocodilians and megapodes appear to be indifferent to nest-site parameters, but susceptibility of crocodilian mound nests to predation or drowning may be altered by site selection.

Superb predators, the crocodilians are reptiles, and the only survivors of the archosaurs that included dinosaurs.

of, pertaining to, or resembling crocodiles