Naobaogou Formation

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Naobaogou Formation
Stratigraphic range: Lopingian
TypeGeological formation
Sub-unitsMembers I-III
UnderliesLaowopu Formation
OverliesShiyewan Formation
ThicknessMore than 1000 m
Country China
ExtentDaqing Mountains

The Naobaogou Formation is a geological formation in the Daqing Mountains of China. It is of Lopingian age. It consists of three rhythms of sediment, labelled members I-III primarily of purple siltstone, but each with a thick basal conglomerate. It is notable for its fossil content, producing one of the most diverse Late Permian vertebrate faunas outside Russia and South Africa.

Vertebrate Fauna[edit]

Fauna of the Naobaogou Formation
Genus Species Material Notes
Daqingshanodon[1] D. limbus Skull Dicynodont
Elginia[2] E. wuyongae Partial skull Pareiasaur
Jiufengia[3] J. Jiai Partial skull and postcranial skeleton Akidnognathid Therocephalian
Shiguaignathus[4] S. wangi Partial skull Akidnognathid Therocephalian
Gansurhinus[5] G. qingtoushanensis Captorhinid
Dicynodontia Indeterminate Partial skulls 6 additional morphotypes in addition to Daqingshanodon, 2 of which are closely related to the former taxon 3 or 4 related to Jimusaria, one possibly closely related to Turfanodon.[6]


  1. ^ Zhuh Y (1989). "The discovery of dicynodonts in Daqingshan Mountain, Nei Mongol (Inner Mongolia)" (PDF). Vertebrata PalAsiatica. 27 (1): 9–27.
  2. ^ Liu J, Bever GS (May 2018). Angielczyk K (ed.). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: a new species of Elginia (Parareptilia, Pareiasauria)". Papers in Palaeontology. 4 (2): 197–209. doi:10.1002/spp2.1105.
  3. ^ Liu J, Abdala F (2019-02-22). "Jiufengia jiai gen. et sp. nov., a large akidnognathid therocephalian". PeerJ. 7: e6463. doi:10.7717/peerj.6463. PMC 6388668. PMID 30809450.
  4. ^ Liu J, Abdala F (2017-12-06). "Shiguaignathus wangi gen. et sp. nov., the first akidnognathid therocephalian from China". PeerJ. 5: e4150. doi:10.7717/peerj.4150. PMC 5723136. PMID 29230374.
  5. ^ Reisz RR, Liu J, Li JL, Müller J (May 2011). "A new captorhinid reptile, Gansurhinus qingtoushanensis, gen. et sp. nov., from the Permian of China". Die Naturwissenschaften. 98 (5): 435–41. Bibcode:2011NW.....98..435R. doi:10.1007/s00114-011-0793-0. PMID 21484260.
  6. ^ Liu, J. (2019). "The tetrapod fauna of the upper Permian Naobaogou Formation of China— 4. the diversity of dicynodonts". Vertebrata Palasiatica: 173–180. doi:10.19615/j.cnki.1000-3118.190522.