青海西宁盆地晚中新世三趾马陆龟化石的发现及意义

基金项目:

国家自然科学基金项目 41772381

中国地质调查局项目 12120113006100

中国地质调查局项目 DD20160306

中国地质调查局项目 DD20190011

中国地质科学院地质力学研究所基本科研业务费项目所科研57

中国地质科学院地质力学研究所基本科研业务费项目 DZLXJK201710

中国地质科学院项目 YYWF201511

详细信息

Discovery of Late Miocene Testudo fossil in the Xining Basin of Qinghai Province, China and its significance

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Key Laboratory of Paleomagnetism and Tectonic Reconstruction, Ministry of Natural Resources, Beijing 100081, China
3.
Research Center of Polar Geosciences, China Geological Survey, Beijing 100081, China
4.
Chinese Academy of Geological Sciences, Beijing 100037, China
5.
Northeast Agricultural University, Harbin 150030, Heilongjiang, China

图 1 化石产出位置及区域地质图

1—第四纪；2—临夏群；3—贵德群；4—马哈拉沟组；5—洪沟组；6—祁家川组；7—始新世；8—前寒武—中生代；9—花岗岩；10—花岗闪长岩；11—走滑断层；12—逆断层；13—剖面位置

Figure 1. Geological map showing location of the fossils

1-Quaterary; 2-Linxia Group; 3-Guide Group; 4-Mahalagou Formation; 5-Honggou Formation; 6-Qijiachuan Formation; 7-Eocene; 8-Precambrian-Mesozoic; 9-Granite; 10-Granodiorite; 11-Strike-slip fault; 12-Thrust fault; 13-Section position

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图 2 西宁盆地班彦剖面三趾马陆龟产出地层层位及化石特征

a—化石产出层位岩性柱状图；b—标本背视；c—标本腹视

Figure 2. Characteristics of the Testudo hipparionum fossil discovered in Banyan section, Xining basin

a-Lithological column of the fossil-bearing horizons; b-Dorsal view of Testudo; c-Abdominal view of Testudo

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