Redescription of the cranial morphology of Mariliasuchus amarali, and its phylogenetic affinities (Crocodyliformes, Notosuchia) ; American Museum Novitates : no. 3512

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dc.contributor.authorZaher, Hussam
dc.contributor.authorPol, Diego
dc.contributor.authorCarvalho, Alberto B.
dc.contributor.authorRiccomini, Claudio
dc.contributor.authorCampos, DiĆ³genes de Almeida
dc.contributor.authorNava, William
dc.date.accessioned2006-05-22T15:56:57Z
dc.date.available2006-05-22T15:56:57Z
dc.date.issued2006
dc.descriptionIncludes bibliographical references (p. 26-28).en
dc.description40 p. : ill., map ; 26 cm.en
dc.description.abstractThe 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.en
dc.format.extent2594695 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/5789
dc.language.isoen_USen
dc.publisherNew York, NY : American Museum of Natural Historyen
dc.relation.ispartofseriesAmerican Museum novitates ; no. 3512en
dc.subject.lccQL1 .A436 no.3512 2006en
dc.subject.lcshMariliasuchus amarali.en
dc.subject.lcshSkull -- Anatomy.en
dc.subject.lcshCrocodilians, Fossil -- Brazil -- SĆ£o Paulo (State)en
dc.subject.lcshReptiles, Fossil -- Brazil -- SĆ£o Paulo (State)en
dc.subject.lcshCrocodilians -- Phylogeny.en
dc.subject.lcshPaleontology -- Cretaceous -- Brazil -- SĆ£o Paulo (State)en
dc.subject.lcshPaleontology -- Brazil -- SĆ£o Paulo (State)en
dc.titleRedescription of the cranial morphology of Mariliasuchus amarali, and its phylogenetic affinities (Crocodyliformes, Notosuchia) ; American Museum Novitates : no. 3512en
dc.title.alternativeCranial morphology of Mariliasuchus amaralien
dc.typetexten

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