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A new Early Oligocene peradectine marsupial (Mammalia)from the Burqin region of Xinjiang, China

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Abstract

Tertiary marsupial records are very scarce in Asia. A new peradectine marsupial, Junggaroperadectes burqinensis gen. et sp. nov., is reported from the Early Oligocene Keziletuogayi Formation in the Burqin region, Xinjiang, China. This new species is based on a single right upper M2. The tooth possesses a straight centrocrista, a characteristic of peradectines. Its main cusps lean buccally, with the paracone being smaller and lower than the metacone. The conules and stylar cusps are weakly developed. These characters distinguish J. burqinensis from Euro-American Tertiary peradectines, but they also imply a close phylogenetic relationship to Siamoperadectes and Sinoperadectes, two Asian Early Miocene peradectines.

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Acknowledgment

We thank Dr. Bi Shundong, Messrs. Su Jianfeng and Wei Yongpeng for field assistance; Profs. Daniel L. Gebo, Li Chuankui, and Qiu Zhuding for instructive and helpful comments on the manuscript. The work is supported by the National Natural Science Foundation of China (NSFC 40202003, 40472022) and the Chinese Academy of Sciences.

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Authors and Affiliations

  1. Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, P. O. Box 643, Beijing, 100044, People’s Republic of China

    Xijun Ni, Wenyu Wu & Jie Ye

  2. Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY, 10024, USA

    Xijun Ni & Jin Meng

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  1. Xijun Ni
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  2. Jin Meng
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  3. Wenyu Wu
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  4. Jie Ye
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Correspondence to Xijun Ni.

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Communicated by G. Mayr.

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Ni, X., Meng, J., Wu, W. et al. A new Early Oligocene peradectine marsupial (Mammalia)from the Burqin region of Xinjiang, China. Naturwissenschaften 94, 237–241 (2007). https://doi.org/10.1007/s00114-006-0182-2

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  • DOI: https://doi.org/10.1007/s00114-006-0182-2

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