Zaher, HussamPol, DiegoCarvalho, Alberto B.Riccomini, ClaudioCampos, Diógenes de AlmeidaNava, William2006-05-222006-05-222006http://hdl.handle.net/2246/5789Includes bibliographical references (p. 26-28).40 p. : ill., map ; 26 cm.The cranial morphology of Mariliasuchus amarali, a poorly known notosuchian from the late Cretaceous of southeastern Brazil, is redescribed based on new material. Its phylogenetic affinities within Crocodylomorpha are evaluated through a parsimony analysis involving 46 taxa and 198 characters. Mariliasuchus is nested well inside the clade Notosuchia, as the sister group of Comahuesuchus, a derived notosuchian from the late Cretaceous of Argentina. Both taxa share the following unambiguous synapomorphies: ventral half of the lacrimal tapering posteroventrally, not contacting or only slightly contacting the jugal; presence of a large foramen on the lateral surface of the anterior part of the jugal; presence of procumbent premaxillary and anterior dentary alveoli; and ectopterygoids that do not participate of the palatine bar. The presence of procumbent premaxillary teeth, specialized tooth crown morphology, and fore-aft jaw movements suggests that this group presented complex jaw movements related to specialized feeding habits.2594695 bytesapplication/pdfen-USQL1 .A436 no.3512 2006Mariliasuchus amarali.Skull -- Anatomy.Crocodilians, Fossil -- Brazil -- São Paulo (State)Reptiles, Fossil -- Brazil -- São Paulo (State)Crocodilians -- Phylogeny.Paleontology -- Cretaceous -- Brazil -- São Paulo (State)Paleontology -- Brazil -- São Paulo (State)text