Stomatosuchus by Moondawg

Stomatosuchus inermis

Stomatosuchus inermis ("Weaponless Mouth Crocodile") was an enormous 12 meter long crocodilian from the Upper Cretaceous of Egypt. It may have been a contemporary of the equally enormous Sarcosuchus imperator. Unlike its carnivorous relative, S. inermis was a baleen whale-like planktivore , as its jaws were built in a manner reminiscent of a pelican , in that the snout was long, but flat, like a lid, and the toothless lower jawbone is extremely thin, like a gasket, suggesting it supported a pouch like throat. Stomatosuchus inermis' had 2 to 3 centimeter long teeth only in its upper jaw, which could have been used to hold their prey (minnow-like fish) as water was forced back out of its mouth.

Unlike most other crocodilians, it is difficult to determine exactly what S. inermis ate. Its flattened skull had a long, flat, lid-like snout, which was lined with small, conical teeth. The mandible may have been toothless and may have supported a pelican-like throat pouch.

Unfortunately the only known specimen, a large skull, which was collected in German paleontologist Ernst Stromer's Egyptian expedition, was obliterated when the Munich Museum was destroyed during an Allied bombing raid in 1944.