Recent site activity

By Group‎ > ‎Dinosauria‎ > ‎Ceratosauria‎ > ‎

Majungasaurus crenatissimus

Majungasaurus can be distinguished from other Gondwanan abelisaurids due to its wider skull and bone protrusion on the top of its snout. It was once mistaken as a pachycephalosaur. Majungasaurus was called Majungatholus for a brief period of time.
 
 


Name


Majungasaurus crenatissimus


Authority   


Depéret, 1896 (first described it as Megalosaurus crenatissimus)

Lavocat renamed the specimen Majungasaurus crenatissimus in 1955

 


Meaning of the generic name


Mahajanga Lizard
  Meaning of the specific name
 

Derived from the Latin word crenatus (notched) and issimus (most), in reference to the numerous serrations on both front and rear edges of the teeth.

 


Size


Body length: 20-23 ft (6-7 m)

Remains


Known from several skulls and postcranial remains.

Type Specimen - MNHN MAJ-1, nearly complete right dentary of subadult individual

 


Age and Distribution


Horizon: Anembalemba Member, the uppermost white sandstone stratum of the Maevarano Formation, Upper Cretaceous (Maastrichtian)
 
Locality: Mahajanga, Madagascar
 

Classification


Dinosauria Saurischia Theropoda Ceratosauria Abelisauridae

 

  Further Reading

 

Depéret, Charles. (1896). "Note sur les Dinosauriens Sauropodes et Théropodes du Crétacé supérieur de Madagascar" (in French). Bulletin de la Société Géologique de France 21: 176–194. 

Carrano, Matthew T. (2007). "The appendicular skeleton of Majungasaurus crenatissimus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar". In Sampson, Scott D.; & Krause, David W. (eds.). Majungasaurus crenatissimus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar. Society of Vertebrate Paleontology Memoir 8. pp. 163–179.

Sues, Hans-Dieter; & Taquet, Phillipe. (1979). "A pachycephalosaurid dinosaur from Madagascar and a Laurasia−Gondwanaland connection in the Cretaceous". Nature 279 (5714): 633–635.

Burch, S. H. and Carrano, M. T. (2012) An articulated pectoral girdle and forelimb of the abelisaurid theropod Majungasaurus crenatissmus from the Late Cretaceous of Madagascar, Journal of Vertebrate Palaeontology, 32(1)

 

  Synonyms  

Majungatholus, Sues and Taquet, 1979

 

 
 
 

Life reconstruction of Majungasaurus crenatissimus by N. Tamura

Skeletal reconstruction of

Majungasaurus crenatissimus in left lateral view, showing known skeletal elements in white, unknown elements in gray. Taken from Carrano, 2007.

Close up of Majungasaurus crenatissimus head by N. Tamura

Life reconstruction of Majungasaurus crenatissimus by D. bogdanov


CT reconstruction of the forelimb and shoulder blades of Majungasaurus crenatissimus, showing the extremely shortened yet robust forearm bones, absent wrist bones, and four stubby fingers. Image: Sarah H. Burch

CT reconstruction of the forelimb and pectoral girdle of Majungasaurus crenatissimus, showing the extremely shortened yet robust forearm bones, absent wrist bones, and four stubby digits. Image: Sarah H. Burch

Comments