Late Guadalupian (Middle Permian) Fusuline Fauna from the Xiala Formation in Xainza County, Central Tibet: Implication of the Rifting Time of the Lhasa Block

Yi-Chun Zhang; Li-Ren Cheng; Shu-Zhong Shen

doi:10.1666/10-005.1

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1 September 2010 Late Guadalupian (Middle Permian) Fusuline Fauna from the Xiala Formation in Xainza County, Central Tibet: Implication of the Rifting Time of the Lhasa Block

Yi-Chun Zhang, Li-Ren Cheng, Shu-Zhong Shen

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J. of Paleontology, 84(5):955-973 (2010). https://doi.org/10.1666/10-005.1

Abstract

A fusuline fauna consisting of 9 species of 4 genera from the Xiala Formation of the Mujiucuo section, Xainza County, Tibet, China is described. The fusuline fauna is dominated by Nankinella and Chusenella and indicates a Midian (Late Guadalupian) age. The earliest record of fusuline fauna during the Midian in the Lhasa Block suggests that the block rifted later than the Qiangtang Block to the north and the Baoshan and Tengchong blocks to the east, all of which yield much earlier fusuline faunas of Yakhtashian (Artinskian) age, but had drifted away from Gondwana to a relatively warm temperate zone in the Late Guadalupian (Middle Permian).

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Yi-Chun Zhang, Li-Ren Cheng, and Shu-Zhong Shen "Late Guadalupian (Middle Permian) Fusuline Fauna from the Xiala Formation in Xainza County, Central Tibet: Implication of the Rifting Time of the Lhasa Block," Journal of Paleontology 84(5), 955-973, (1 September 2010). https://doi.org/10.1666/10-005.1

Accepted: 1 April 2010; Published: 1 September 2010

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