| Summary: | Herein is described a new species of a Crocodylomorpha Mesoeucrcodylia belonging to the genus Mariliasuchusfrom the Adamantina Formation (Upper Cretaceous, Turonian-Santonian), Bauru Basin, Brazil. The diagnostic features ofthe 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.
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