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Berberosaurus : ウィキペディア英語版 | Berberosaurus
''Berberosaurus'' (meaning "Berber lizard", in reference to the Berbers of Morocco) is a genus of neotheropod dinosaur, possibly a ceratosaur, from the Pliensbachian-Toarcian-age Lower Jurassic Toundoute Continental Series found in the High Atlas of Toundoute, Ouarzazate, Morocco. The type species of the genus ''Berberosaurus'' is ''B. liassicus'', in reference to the Lias epoch. ''Berberosaurus'' might be the oldest known ceratosaur, and is based on partial postcranial remains. ==Classification== Ronan Allain and colleagues, who described ''Berberosaurus'', performed a phylogenetic analysis and found their new genus to be the most basal known abelisauroid, more derived than ''Elaphrosaurus'', ''Ceratosaurus'', and ''Spinostropheus'', but less so than ''Xenotarsosaurus'' and abelisaurians. ''Berberosaurus'' is distinguished from other theropods by anatomical details found in its vertebrae, metacarpals, and hindlimb bones. Its assignment as an abelisauroid pushes back the record of this group and shows that it had diversified by the Early Jurassic. However, Carrano and Sampson (2008) found it to be a basal ceratosaur outside Neoceratosauria instead.〔Carrano & Sampson, 2008. The phylogeny of Ceratosauria (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 6, 183-236.〕 Subsequently, the analysis of Xu ''et al.'' (2009) recovered it as a dilophosaurid in unresolved polytomy with ''Dilophosaurus wetherilli'', ''"Dilophosaurus" sinensis'', ''Dracovenator'' and ''Cryolophosaurus''. The phylogenetic analysis performed by Ezcurra, Agnolin and Novas (2010) recovered ''Berberosaurus'' in unresolved polytomy with ''Ceratosaurus'' and Abelisauroidea,
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