Mariliasuchus robustus, a new Crocodylomorpha (Mesoeucrocodylia) from the Bauru Basin, Brazil

Abstract

Herein is described a new species of a Crocodylomorpha Mesoeucrcodylia belonging to the genus Mariliasuchus from the Adamantina Formation (Upper Cretaceous, Turonian-Santonian), Bauru Basin, Brazil. The diagnostic features of the new species of Mariliasuchus are related to increased stoutness of the skull, wich is high, short and posteriorlly wide; the posterior region of the skull is almost as high as wide. The rostrum is straight, high, and rectangular in cross-section, with a convex dorsal surface, bearing no signs of a antorbital fenestrae. The orbits are large and laterally positioned in the skull. The external nares are forward oriented. The dentition presents pointed anterior teeth (incisiform), a hypertrophied caniniform and a low and globular post-caniniform teeth. The mandible is robust and display a strong vertical bending in its anterior and posterior ends.