Xidagou Formation

Xidagou Formation
Stratigraphic range: Middle Permian
Type Geological formation
Location
Region Asia
Country  China

The Xidagou Formation is an Middle Permian-age geologic formation in the Qilian Mountains of Gansu, China.

Paleobiota

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
 Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Synapsida

Genus Species Location Stratigraphic position Material Notes Images

Biseridens[1]

B. qilianicus[1]

 A well-preserved skull[1] An Anomodont[1]

Sinophoneus[2]

S. yumenensis[2]

 A single skull (GMV 1601) An Anteosaurid Dinocephalian

Stenocybus[2]

S. acidentatus[2]

A skull (IGCAGS V 361) and fragmentary jaw bones

Jr. synonym of Sinophoneus yumenensis

Raranimus

R. dashankouensis

 Dashankou locality A partial skull A basal Therapsid.

Sauropsida

Genus Species Location Stratigraphic position Material Notes Images

Belebey

B. zhengi

 A Bolosaurid

Gansurhinus

G. qingtoushanensis

 A Captorhinid

References

  1. ↑ 1.0 1.1 1.2 1.3 Liu, J.; Rubidge, B.; Li, J. (2009). "A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont". Proceedings of the Royal Society B 277 (1679): 285–292. doi:10.1098/rspb.2009.0883. PMC 2842672. PMID 19640887.
  2. ↑ 2.0 2.1 2.2 2.3 Kammerer, C.F. (2011). "Systematics of the Anteosauria (Therapsida: Dinocephalia)". Journal of Systematic Palaeontology 9 (2). doi:10.1080/14772019.2010.492645.