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, labeled 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
Synapsids Dicynodonts Dicynodonts of the Naobaogou FormationGenusSpeciesLocalityMaterialNotesImagesDaqingshanodon D. limbusSkullA dicynodontDicynodontiaIndeterminatePartial skullsFive additional morphotypes in addition to Daqingshanodon and Turfanodon, two of which are closely related to the former taxon and three or four related to Jimusaria.JimusariaJ. monanensisSkulls, cervicals, scapulaA dicynodontoid dicynodontTurfanodonT. jiufengensisRelatively complete skeleton and skullsA dicynodontoid dicynodont Therocephalians Therocephalians of the Naobaogou FormationGenusSpeciesLocalityMaterialNotesImagesCaodeyaoC. liuyufengiPartial skull, mandible, humerusA eutherocephalian, closely related to Purlovia.EuchambersiaE. liuyudongi Skull and lower jawAn akidnognathid therocephalianJiufengiaJ. jiaiPartial skull and postcranial skeletonAn akidnognathid therocephalianShiguaignathusS. wangiPartial skullAn akidnognathid therocephalian Pareiasaurs Pareiasaurs of the Naobaogou FormationGenusSpeciesLocalityMaterialNotesImagesElginiaE. wuyongaePartial skullA pareiasaurYinshanosaurusY. angustusPartial articulated skeleton and skullA pareiasaur Reptiliomorphs Reptiliomorphs of the Naobaogou FormationGenusSpeciesLocalityMaterialNotesImagesGansurhinusG. naobaogouensisRelatively complete skeleton of an immature individualA captorhinidLaosuchusL. hunPartial skull and postcranial skeletonA chroniosuchian
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