Alxasaurus
Alxasaurus | |
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Restored skeleton mount at the Royal Tyrrell Museum of Palaeontology | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Clade: | †Therizinosauria |
Superfamily: | † Therizinosauroidea
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Genus: | †Alxasaurus Russell & Dong, 1993 |
Type species | |
†Alxasaurus elesitaiensis Russell & Dong, 1993
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Alxasaurus (.
History of discovery
The
Alxasaurus is named after the
Five Alxasaurus specimens were recovered from the
Description
Several specimens are known and they vary in size, but Gregory S. Paul estimated its maximum adult length up to 4 m (13 ft) and mass up to 400 kg (880 lb).
Classification
While exhibiting many typical therizinosaur features in overall body shape and in the teeth, the skeleton of Alxasaurus also shows several features present in more typical theropods, and the discovery of this animal provided significant evidence that therizinosaurs were aberrant theropods. Specifically, the semilunate
Although Rusell and Dong coined the Alxasauridae to contain Alxasaurus,
The following cladogram is based on the phylogenetic analysis conducted by Hartman et al. 2019:[6]
Therizinosauria |
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See also
References
- ^ doi:10.1139/e93-183.
- ISBN 9781400836154.
- S2CID 204993327.
- S2CID 4428196.
- ^ S2CID 53405097.
- ^ PMID 31333906.