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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
Lithology
PrimarySiltstone
OtherConglomerate
Location
Country China
ExtentDaqing Mountains

The Naobaogou Formation is a geological formation in the Daqing Mountains of China. It is likely of Lopingian (Late Permian) age. It consists of three rhythms of sediment, labelled members I-III primarily of purple siltstone, but each with a thick basal conglomerate bed. It is notable for its fossil content, producing one of the most diverse Late Permian vertebrate faunas outside Russia and South Africa.[1]

Vertebrate fauna

Fauna of the Naobaogou Formation
Genus Species Material Notes Images
Caodeyao [2] C. liuyufengi Partial skull, mandible, humerus A eutherocephalian, closely related to Purlovia.
Daqingshanodon[3] D. limbus Skull Dicynodont
Dicynodontia Indeterminate Partial skulls 5 additional morphotypes in addition to Daqingshanodon and Turfanodon, 2 of which are closely related to the former taxon and 3 or 4 related to Jimusaria.[4][5]
Elginia[1] E. wuyongae Partial skull Pareiasaur
Euchambersia E. liuyudongi Skull and lower jaw Akidnognathid therocephalian
Gansurhinus[6][7] G. naobaogouensis Relatively complete skeleton of an immature individual Captorhinid
Jimusaria[8] J. monanensis Skulls, cervicals, scapula Dicynodontoid dicynodont
Jiufengia[9] J. jiai Partial skull and postcranial skeleton Akidnognathid therocephalian
Laosuchus[10] L. hun Partial skull and postcranial skeleton Chroniosuchian
Shiguaignathus[11] S. wangi Partial skull Akidnognathid therocephalian
Turfanodon[5] T. jiufengensis Relatively complete skeleton and skulls Dicynodontoid dicynodont

References

  1. ^ a b Liu, J.; Bever, G.S. (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. S2CID 135273110.
  2. ^ Liu, Jun; Abdala, Fernando (2020-05-28). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: 5. Caodeyao liuyufengi gen. et sp. nov., a new peculiar therocephalian". PeerJ. 8: e9160. doi:10.7717/peerj.9160. ISSN 2167-8359. PMC 7261480. PMID 32523808.
  3. ^ Zhuh Y (1989). "The discovery of dicynodonts in Daqingshan Mountain, Nei Mongol (Inner Mongolia)" (PDF). Vertebrata PalAsiatica. 27 (1): 9–27.
  4. ^ 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.
  5. ^ a b Liu, J. (2021). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: 6. Turfanodon jiufengensis sp. nov. (Dicynodontia)". PeerJ. 9 (e10854): e10854. doi:10.7717/peerj.10854. PMC 7896508. PMID 33643709.
  6. ^ 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. S2CID 20274349.
  7. ^ Liu, Jun (2023-05-09). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: 9. A new species of Gansurhinus (Reptilia: Captorhinidae) and a revision of Chinese captorhinids". Journal of Vertebrate Paleontology. 42 (5): e2203200. doi:10.1080/02724634.2023.2203200. ISSN 0272-4634. S2CID 243245020.
  8. ^ Shi, Y.-T.; Liu, J. (2023). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: 10. Jimusaria monanensis sp. nov. (Dicynodontia) shows a unique epipterygoid". PeerJ. 11: e15783. doi:10.7717/peerj.15783. ISSN 2167-8359. PMC 10399559. PMID 37547715.
  9. ^ 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.
  10. ^ Liu, J.; Chen, J. (2021). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: 7. Laosuchus hun sp. nov. (Chroniosuchia) and interrelationships of chroniosuchians". Journal of Systematic Palaeontology. 18 (24): 2043–2058. doi:10.1080/14772019.2021.1873435. S2CID 232116225.
  11. ^ 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.
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