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Osteology of Turfanodon bogdaensis (Dicynodontia)

  • SHI Yu-Tai ,
  • LIU Jun
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  • 1 Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Beijing 100044
    2 College of Earth and Planetary Sciences, University of Chinese Academy of Sciences Beijing 100049

Received date: 2024-02-05

  Online published: 2024-05-29

Abstract

Within the dicynodont genus Turfanodon , there are two recognized species, T. bogdaensis and T. jiufengensis . Both species are known by relatively complete cranial materials, but the mandibles and most postcranial bones have been described only for T. jiufengensis . This paper reports new dicynodont specimens from Turpan, Xinjiang, referring them to T. bogdaensis . They can clearly be differentiated from T. jiufengensis by the flatter lateral surface of the snout region, a prominent swelling on the lateral dentary shelf, and the rounded femoral head. The diagnosis of Turfanodon is revised. The combination of a flat circumorbital rim, posterior portion of anterior pterygoid rami with converging ventral ridges, and a possible autapomorphy, a deep notch on scapula forming procoracoid foramen, are confirmed. It also differentiated from all dicynodonts other than Myosaurus , Kembawacela and Lystrosaurus by having accessory ridges lateral to the median palatal ridge.

Cite this article

SHI Yu-Tai , LIU Jun . Osteology of Turfanodon bogdaensis (Dicynodontia)[J]. Vertebrata Palasiatica, 2024 , 62(3) : 186 -200 . DOI: 10.19615/j.cnki.2096-9899.240529

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