Xixianykus
Xixianykus is a genus of alvarezsaurid theropod dinosaur known from a slab of rock which contains a partial postcranial skeleton unearthed in the Late Cretaceous (Coniacian-Santonian) Majiacun Formation of the Xixia Basin in Henan, China.
Article
4 sectionsContents
- Discovery and naming
- Description
- References
- External links
Xixianykus is a genus of alvarezsaurid theropod dinosaur known from a slab of rock which contains a partial postcranial skeleton unearthed in the Late Cretaceous (Coniacian-Santonian) Majiacun Formation of the Xixia Basin in Henan, China.
==Discovery and naming== The fossil, holotype XMDFEC V0011, was found in the Majiacun Formation in Henan Province, China. The fossil consists of a partial skeleton, without the skull. Parts of the hind legs, pelvis and spine has also been recovered. Xixianykus is among the oldest of the derived alvarezsauroids, the parvicursorines, dated to the Santonian–Coniacian, as opposed to other parvicursorines, which are either Campanian or Maastrichtian.