二叠纪脑包沟组的四足动物群——4. 二齿兽类的多样性

doi:10.19615/j.cnki.1000-3118.190522

古脊椎动物学报 ›› 2019, Vol. 57 ›› Issue (3): 173-180.DOI: 10.19615/j.cnki.1000-3118.190522

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二叠纪脑包沟组的四足动物群——4. 二齿兽类的多样性

刘俊¹^,²^,³()

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 中国科学院生物演化与环境卓越创新中心北京 100044
3 中国科学院大学地球与行星科学学院北京 100049

收稿日期:2019-03-12 出版日期:2019-07-20 发布日期:2019-07-20
通讯作者: liujun@ivpp.ac.cn
基金资助:
中国科学院战略性先导科技专项(B类)(XDB26000000);国家自然科学基金(41572019)

The tetrapod fauna of the upper Permian Naobaogou Formation of China— 4. the diversity of dicynodonts

LIU Jun¹^,²^,³()

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 CAS Center for Excellence in Life and Paleoenvironment Beijing 100044
3 College of Earth and Planetary Sciences, University of Chinese Academy of Sciences Beijing 100049

Received:2019-03-12 Published:2019-07-20 Online:2019-07-20

摘要/Abstract

摘要：

华北二叠纪的二齿兽类记录很少。从2009年开始在内蒙古大青山地区脑包沟组中采集到大量的二齿兽类化石,从中可以鉴别出7个形态类型,它们可能代表了7个物种：其中2个与边缘大青山兽(Daqingshanodon limbus)密切相关,3或4个与新疆吉木萨尔兽(Jimusaria sinkianensis)关系密切,1个可能与吐鲁番兽(Turfanodon)关系密切。研究表明华北的二齿兽类在种级也具有很高的多样性。

关键词: 内蒙古大青山, 二叠纪, 脑包沟组, 大青山兽, 吉木萨尔兽, 吐鲁番兽

Abstract:

The Permian dicynodont records were previously rare in North China, but many dicynodont specimens have been collected from the Naobaogou Formation in Daqingshan area, Nei Mongol since 2009. Among these specimens, seven morphotypes have been identified, and they may represent seven different species: two of them are closely related to Daqingshanodon limbus, three or four are closely related to Jimusaria sinkianensis, and one may be closely related to Turfanodon. This study shows the dicynodonts also have a high diversity at the species level in North China.

Key words: Daqingshan area,Nei Mongol, Permian, Naobaogou Formation, Daqingshanodon, Jimusaria, Turfanodon

中图分类号:

Q915.861

刘俊. 二叠纪脑包沟组的四足动物群——4. 二齿兽类的多样性. 古脊椎动物学报, 2019, 57(3): 173-180.

LIU Jun. The tetrapod fauna of the upper Permian Naobaogou Formation of China— 4. the diversity of dicynodonts. Vertebrata Palasiatica, 2019, 57(3): 173-180.

图/表 4

Table 1 Comparison of dicynodont specimens from the Naobaogou Formation

	1	2	3	4	5	6	7	8	9	10	11
IVPP V 7940	1	1	0	0	0	0	2	1	0	1	1.5
IVPP V 26037	1	1	0	0	0	?	2	?	0	1	1.5
IVPP V 23878	1	1	0	0	?	1	2	0	1	2	1
IVPP V 26034	0	2	1	1	1	1	0	0	1	1.4	1.3
IVPP V 26035	?	2	1	1	1	?	1	0	?	1.2	?
IVPP V 26036	0	2	1	1	?	?	?	?	?	1.9	2
IVPP V 23879	?	?	?	?	?	2	2	1	?	?	?
IVPP V 23880	?	?	?	?	?	2	1&2	1	?	?	?

Fig. 1 Photos of Morphogroup IIVPP V 7940 (holotype of Daqingshanodon limbus) in dorsal (A) and lateral (B) views; V 26037 in dorsal (C) and lateral (D) views (D reflected from the right side); V 23878 in dorsal (E) and lateral (F) views

Fig. 2 Photos of Morphogroup IIIVPP RV 341407 (holotype of Jimusaria sinkianensis) in lateral (A) and dorsal (B) views;V 26034 in lateral (C) and dorsal (D) views; V 26035 in lateral (E) and dorsal (F) views;and V 26036 in lateral (G) and dorsal (H) views (G reflected from the right side). Scale bars equal 2 cm

Fig. 3 Photos of Morphogroup IIIIVPP V 23879 in lateral (A) and anterior (B) views; V 23880 in lateral (C) and anterior (D) views Scale bars equal 2 cm

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二叠纪脑包沟组的四足动物群——4. 二齿兽类的多样性

The tetrapod fauna of the upper Permian Naobaogou Formation of China— 4. the diversity of dicynodonts

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