SuperCroc: diet.

Based on the broader snout of fully grown S. imperator when compared to the living gharial and other narrow-snouted crocodiles, along with a lack of interlocking of the smooth and sturdy-crowned teeth when the jaws were closed, Sereno et al. hypothesized that S. imperator had a generalized diet similar to that of the Nile crocodile. A diet that would have included large terrestrial prey such as the abundant dinosaurs that lived in the same region.

However, a 2014 analysis of a biomechanical model of its skull suggested that unlike Deinosuchus, Sarcosuchus would not have been able to perform the "death roll" maneuver used by extant crocodylians to dismember their prey. This suggests that if S. imperator did hunt big game, it probably did not dismember prey in the same fashion as extant crocodylians.