"Clark's pug-nosed crocodile" is known from a single well-preserved skull from Madagascar. As a notosuchid, Simosuchus belongs to a group of small-to-medium sized crocodilians that reached the zenith of their diversity during the Late Cretaceous. The group ran the gamut of feeding ecologies. Simosuchus itself was probably an herbivore, given its leaf-shaped teeth and squared-off snout. It also would have been barely a meter long. Simosuchus would have been on the lookout for the dinosaurs it shared its habitat with. While one may think that such a small animal would be easy pickings for a carnivore, Simosuchus was probably adorned with the armor plating of its more modern relatives to protect it from harm.
Note: The addition of more than one picture, plus both centered AND left-aligned text means that this post's format will be FAIL. It's not ugly on purpose--it's ugly because of eBlogger and my inability to read HTML fluently.