Achillesaurus

Taxobox |
name = "Achillesaurus"
fossil_range = Late Cretaceous


regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Saurischia
subordo = Theropoda
familia = Alvarezsauridae
genus = "Achillesaurus"
genus_authority = Martinelli and Vera, 2007
subdivision_ranks = Species
subdivision ="A. manazzonei" Martinelli and Vera, 2007 (type)

"Achillesaurus" (named in reference to Achilles' heel, because diagnostic features are found there for this animal) is a genus of alvarezsaurid theropod dinosaur from the Santonian-age Upper Cretaceous Bajo de la Carpa Formation of Rio Negro, Argentina. It was a relatively large, basal alvarezsaurid, and a contemporary of "Alvarezsaurus". "Achillesaurus" is based on MACN-PV-RN 1116, a partial skeleton including a sacral vertebra, four tail vertebrae, part of the left thighbone, shin and foot, and the left ilium. Agustín Martinelli and Ezequiel Vera, who described the specimen, performed a phylogenetic analysis and found their new genus to be an alvarezsaurid with an unresolved relationship to "Alvarezsaurus" and more derived alvarezsaurids.cite journal |last=Martinelli |first=Agustín G. |coauthors=and Vera, Ezequiel I. |year=2007 |title="Achillesaurus manazzonei", a new alvarezsaurid theropod (Dinosauria) from the Late Cretaceous Bajo de la Carpa Formation, Río Negro Province, Argentina |journal=Zootaxa |volume=1582 |pages=1–17]

References

External links

* [http://www.mapress.com/zootaxa/2007f/z01582p017f.pdf Abstract and first page of the description] (pdf)