Shi et al.—Depauperate fusulinid faunas of the Tengchong block Conclusions
1. This paper describes two newly collected fusulinid faunas from the Tengchong Block, involving Chusenella riagouensis,
C.cf. minuta, Nankinella cf. mingshanensis, N. orientalis,and Nankinella sp. from the Shanmutang area, and Chusenella mingguangensis, Schwagerina chihsiaensis, Schwagerina pseudocompacta,and Staffella sp. from the Shuangheyan area. The former indicates an age of Roadian–Capitanian (middle Permian), and the latter suggests a Wordian–Capitanian (middle Permian) age.
2. Middle Permian fusulinid faunas discovered in the Tengchong Block display the depauperate characteristic of lowgeneric and specific diversitieswith abundant specimens. Thismay suggest an inhospitable temperate zone of shallow sea.
3. Hitherto published fusulinid data from the Tengchong Block include eight genera in the early Permian and 10 genera in the middle Permian. The fusulinids exhibit Gondwana affinity of low diversity and impoverished Pseudoschwagerininae, Verbeekininae, and Neoschwagerininae. They further indicate that the block was probably located at the higher latitude area of the southern transitional zone.
Acknowledgments
X. H. An andP.Zongparticipatedin the fieldwork. We thank P. H. Muller for offering information. We are grateful to J. Groves and another anonymous reviewer for their valuable suggestions and comments. This research is supported by the State Program of Overseas Study for Outstanding Young Scholars of Jiangsu, the National Natural Science Foundation of China (No. 41272043, 41372008), State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) (No. 133110), and the Fundamental Research Funds for the Central Universities (No. 20620140390).
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