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  • Skeletal, by Scott Hartman.
  • Arm restoration, showing how vegistal they really are.
  • Skull sketch/diagram.
  • Jaw fossils.
  • Tooth fossil.
  • Vertabra/Backbone.
  • Skull diagram, showing all shorts of soft tissues.
  • Brain reconstruction.
  • Skull and jaw diagram.
  • Majungasaurus bite marks.
Majungasaurus
("Mahajanga lizard") is a genus of abelisaurid ceratosaur, that lived in Madagascar from 70 to 65 million years ago, at the end of the Cretaceous Period. The type and only species is M. crenatissimus. This dinosaur was briefly called "Majungatholus", a name which is now considered a junior synonym of Majungasaurus.[1]

Like other abelisaurids, Majungasaurus was a bipedal predator with a short snout. Although the forelimbs are not completely known, they were very short, while the hindlimbs were longer and very stocky. It can be distinguished from other abelisaurids by its wider skull, the very rough texture and thickened bone on the top of its snout, and the single rounded horn on the roof of its skull, which was originally mistaken for the dome of a pachycephalosaur. It also had more teeth in both upper and lower jaws than most abelisaurids.[2]

Known from several well-preserved skulls and abundant skeletal material, Majungasaurus has recently become one of the best-studied theropod dinosaurs from the Southern Hemisphere. It appears to be most closely related to abelisaurids from India rather than South America or continental Africa, a fact which has important biogeographical implications. Majungasaurus was the apex predator in its ecosystem, mainly preying on sauropods like Rapetosaurus, and is also the only dinosaur for which direct evidence of cannibalism is known.[3]


Contemporaries

ReferencesEdit

  1. http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=66917
  2. R. Lavocat. 1955. Sur une portion de mandibule de théropode provenant du Crétacé supérieur de Madagascar [On a portion of theropod mandible from the Upper Cretaceous of Madagascar]. Bulletin du Muséum National d'Histoire Naturelle, Paris, 2e série 27(3):256-259
  3. http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=53957

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