| Naobaogou Formation | |
|---|---|
| Stratigraphic range: Lopingian? PreꞒ Ꞓ O S D C P T J K Pg N | |
| Type | Geological formation |
| Sub-units | Members I-III |
| Underlies | Laowopu Formation |
| Overlies | Shiyewan Formation |
| Thickness | More than 1000 m |
| Lithology | |
| Primary | Siltstone |
| Other | Conglomerate |
| Location | |
| Country |  China |
| Extent | Daqing 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.
Vertebrate fauna
| Genus | Species | Material | Notes | Images |
|---|---|---|---|---|
| Caodeyao | C. liuyufengi | Partial skull, mandible, humerus | A eutherocephalian, closely related to Purlovia. |  |
| Daqingshanodon | 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. | |
| Elginia | E. wuyongae | Partial skull | Pareiasaur | |
| Euchambersia | E. liuyudongi | Skull and lower jaw | Akidnognathid therocephalian |  |
| Gansurhinus | G. naobaogouensis | Relatively complete skeleton of an immature individual | Captorhinid | |
| Jimusaria | J. monanensis | Skulls, cervicals, scapula | Dicynodontoid dicynodont | |
| Jiufengia | J. jiai | Partial skull and postcranial skeleton | Akidnognathid therocephalian |  |
| Laosuchus | L. hun | Partial skull and postcranial skeleton | Chroniosuchian | |
| Shiguaignathus | S. wangi | Partial skull | Akidnognathid therocephalian |  |
| Turfanodon | T. jiufengensis | Relatively complete skeleton and skulls | Dicynodontoid dicynodont |  |
References
- ^ 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.
- 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.
- Zhuh Y (1989). "The discovery of dicynodonts in Daqingshan Mountain, Nei Mongol (Inner Mongolia)" (PDF). Vertebrata PalAsiatica. 27 (1): 9–27.
- 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.
- ^ 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.