Austrocheirus
Austrocheirus | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Clade: | Averostra |
Genus: | †Austrocheirus Ezcurra et al., 2010 |
Species: | †A. isasii
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Binomial name | |
†Austrocheirus isasii Ezcurra et al., 2010
|
Austrocheirus is an
The
Austrocheirus was a medium-sized theropod measuring 5.5–6.5 metres (18–21 ft) long.[4][5]
A
The referral of Austrocheirus to Abelisauroidea was challenged by Oliver Rauhut (2012), who claimed that the putative abelisauroid synapomorphies used to justify this referral are actually also present in the skeletons of non-abelisauroid theropods. Thus, according to Rauhut, Austrocheirus can be only classified as a theropod dinosaur of uncertain phylogenetic placement.[6] A partial ulna, manual claw and metatarsal that belongs to the holotype of Austrocheirus further supports Rauhut's argument, with the important morphological differences preventing its classification to a particular clade of theropods; for this reason, the authors suggested that it is best to classify this genus under incertae sedis Averostra, before more materials are discovered.[3]
See also
References
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- ^ Holtz, Thomas R. (2012). "Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages" (PDF).
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