Selon Dinodata, il aurait été découvert les restes d'un Dromaeosaurid.
ABSTRACT: The latest Cretaceous (Campanian?-Maastrichtian) Maevarano Formation of the Mahajanga Basin, Madagascar, preserves one of the most diverse fossil vertebrate faunas of the Gondwanan landmasses. Over 180 isolated theropod teeth recovered from that formation were studied in order to document theropod diversity in the Madagascar insular setting. Tooth morphology and characteristics of the Maevarano teeth were compared to those of known theropod teeth for identification, including the Malagasy non-avian theropods Majungatholus atopus and Masiakasaurus knopfleri. Tooth and denticle morphologies permit the recognition of five tooth morphotypes: three morphotypes are referable to Majungatholus atopus based on variation in tooth morphology observed in teeth preserved in situ in the jaws of two specimens, and one morphotype is ascribable to Masiakasaurus knopfleri. Teeth pertaining to the fifth morphotype differ from other morphotypes in the size and orientation of the denticles, shape and orientation of blood grooves, and in general tooth morphology. Statistical analyses reveal that the fifth Maevarano tooth morphotype is similar to dromaeosaurid teeth, suggesting that a yet unknown theropod taxon inhabited Madagascar during the latest Cretaceous. This morphotype represents the first evidence of the possible presence of a dromaeosaurid in Madagascar and supports the theory that dromaeosaurids were present throughout Pangaea before the break-up of the supercontinent during the Late Jurassic and had colonized Madagascar before its separation from Africa during the Early Cretaceous.
Discussion:
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Dernière réponse
Posté par Utahraptor
Posté par Kuzanaguy
Affaire à suivre donc........................
Posté par Pyroraptor
Interessant! kelkunaurait se petit pdf?
Posté par Tikémi
ça a été publié chez Acta Polonica :
http://www.app.pan.pl/acta52/app52-155.pdf
http://www.app.pan.pl/acta52/app52-155.pdf
Posté par Fifi
Ben il serait alors proche de Rahonavis ostromi...
Il y a un truc que je comprend pas, ils mettent Masiakasaurus avec velociraptor dans ton PDF...
Il y a un truc que je comprend pas, ils mettent Masiakasaurus avec velociraptor dans ton PDF...
Posté par Dinomaster
Masiakasaurus est pas un Noasauridae
Posté par Fifi
A ben oui je me disais bien ...
Posté par Utahraptor
Oui,d'un autre côté, Majungatholus n'est pas non plus un Dromaeosaurid...
Posté par Dinomaster
J'ai du rater un truc
Posté par Utahraptor
Quel truc?
Posté par Van Helsing
Bienvenue à Madagascar !
- Catakalgar ?
- Catakalgar ?