 "Nicrosaurus" in general have massive snouts similar to extanct crocodilians, suggesting they preyed on tetrapods instead of fish.All derived phytosaurs have an ilium that is characterized by a blade that elongates posteriorly and an anterior process that is short in length.However, compared to all phytosaurs, the ilium of "Nicrosaurus kapffi" is dorso-ventrally elongated, similar to that of "Erythrosucus africanus."