| Tongue long and bifid, with papillae or folds, with osteoderms on the head but not on the body. |
| In Glyptotherium, hundreds of small osteoderms, also known as scutes, make up a typical carapace. |
| In Restes the osteoderms are flattened while for Exostinus they are subconical. |
| However, its skull also shows the characteristic osteoderms, or bony plates in the skin, that distinguish crocodiles from their dinosaur relatives. |
| Very few complete carapaces or cranial and postcranial elements are recovered, and osteoderms are usually found isolated. |
| Crocodiles have smooth skin on their bellies and sides, while their dorsal surfaces are armoured with large osteoderms. |
