Shamosuchus is an extinct genus of neosuchian crocodyliform that lived during the Late Cretaceous (Campanian) period in what is now the Djadokhta Formation of Mongolia, approximately 75 million to 71 million years ago.

Shamosuchus reached up to 4 m long and have a rostrum of moderate length.

As this cranial morphology does not suit an ambush predator, it lends support to the idea of a diet of aquatic invertebrates.

The teeth were adapted to crush bivalves, gastropods and other animals with a shell or exoskeleton.

[4][5][6] However, recent cladistic analysis of Paralligatoridae found Paralligator distinct from Shamosuchus.