Open AccessMariliasuchus robustus, um novo Crocodylomorpha (Mesoeucrocodylia) da Bacia Bauru, Brasil
Author(s) -
Pedro Henrique Nobre,
Ismar de Souza Carvalho,
Felipe Mesquita de Vasconcellos,
Willian Roberto Nava
Publication year - 2007
Publication title -
anuário do instituto de geociências
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.202
H-Index - 12
eISSN - 1982-3908
pISSN - 0101-9759
DOI - 10.11137/2007_1_38-49
Subject(s) - rostrum , skull , anatomy , geology , cretaceous , dentition , mandible (arthropod mouthpart) , dorsum , paleontology , genus , biology , zoology
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.