| Named By: | G. A. Buckley, C. A. Brochu, D. W. Krause & D. Pol in 2000 |
| Time Period: | Late Cretaceous, 70 Ma |
| Location: | Madagascar, Mahajanga Province - Maevarano Formation |
| Size: | About 75 centimetres long |
| Diet: | Herbivore |
| Fossil(s): | Multiple individuals, together allowing for complete reconstructions of the animal |
| Classification: | | Chordata | Reptilia | Crocodylomorpha | Notosuchia | Ziphosuchia | |
Simosuchus (meaning "pug-nosed crocodile" in Greek, referring to the animal's blunt snout) is an extinct genus of notosuchian crocodylomorphs from the Late Cretaceous of Madagascar. It is named for its unusually short skull. Fully grown individuals were about 0.75 metres (2.5 ft) in length. The type species is Simosuchus clarki, found from the Maevarano Formation in Mahajanga Province.
The teeth of S. clarki were shaped like cloves (maple leaves), which coupled with its short and deep snout suggest it was not a carnivore like most other crocodylomorphs. In fact, these features have led many palaeontologists to consider it an herbivore.