欢迎访问《古脊椎动物学报》官方网站,今天是 分享到:

古脊椎动物学报 ›› 2024, Vol. 62 ›› Issue (3): 186-200.DOI: 10.19615/j.cnki.2096-9899.240529

• • 上一篇    下一篇

博格达吐鲁番兽(二齿兽类)的骨骼学

石雨泰1,2, 刘俊1,2,*()   

  1. 1 中国科学院古脊椎动物与古人类研究所,中国科学院脊椎动物演化与人类起源重点实验室 北京 100044
    2 中国科学院大学地球与行星科学学院 北京 100049
  • 收稿日期:2024-02-05 出版日期:2024-07-20 发布日期:2024-08-13
  • 基金资助:
    中国科学院战略性先导科技专项(B类)(XDB26000000);中国科学院大学生创新实践训练计划资助

Osteology of Turfanodon bogdaensis (Dicynodontia)

SHI Yu-Tai1,2, LIU Jun1,2,*()   

  1. 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:2024-02-05 Published:2024-07-20 Online:2024-08-13
  • Contact: * liujun@ivpp.ac.cn

摘要:

吐鲁番兽( Turfanodon )是一类生活在二叠纪晚期的二齿兽类,曾广泛分布在新疆至华北一带。目前该属下建立有两个种——博格达种( T. bogdaensis )与九峰种( T. jiufengensis )。两个种都具有相对完整的头骨材料,但只有九峰种报道了下颌及头后骨骼材料。一批产自新疆吐鲁番地区,可以归入到博格达吐鲁番兽的新材料,具有一系列可以明显区别于九峰种的特征,包括头骨的鼻吻部侧面平坦,下颌齿骨侧架成肿突状,以及股骨头为近半球状。吐鲁番兽属的鉴别特征也有更新,包括眼框周缘平坦,两条翼骨前支上的嵴向后汇聚,以及一个可能的自有衍征:肩胛骨上参与塑造乌喙孔的凹缺很大。吐鲁番兽腭部的中嵴两侧发育有副嵴,这一特征区别于除肌龙兽( Myosaurus )、掘铁兽( Kembawacela )和水龙兽( Lystrosaurus )外的其他二齿兽类。

关键词: 新疆吐鲁番盆地, 二叠纪乐平世, 锅底坑组, 二齿兽类, 吐鲁番兽, 骨骼学, 头后骨骼

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.

Key words: Turpan, Xinjiang, Lopingian, Permian, Guodikeng Formation, Dicynodontia, Turfanodon , osteology, postcranial skeleton

中图分类号: