A New Titanosauriform Sauropod from the Early Late Cretaceous of Dongyang, Zhejiang Province
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This study are supported by the Zhejiang Provincial Bureau of Land and Resources and Dongyang Museum; the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, and the Basic Outlay of Scientific Research Work from the Ministry of Science and Technology of the People′s Republic of China to Lü J. C.

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    摘要:

    A new titanosauriform sauropod Dongyangosaurus sinensis gen. et sp. nov. from the early Late Cretaceous of Dongyang County, Zhejiang Province, is erected based on a partial postcranial skeleton. It is characterized by complex laminae on the lateral surface of the neural spines and postzygapophyses of dorsal vertebrae, a distinct fossa on the ventral surfaces of the prezygapophyses of dorsal vertebrae, distinct fossae are also present on the lateral surface of the postzygapophysis of anterior caudal vertebrae; pubis is shorter than ischium, the small obturator foramen of pubis elongated, and nearly closed. The lamina complexity of dorsal vertebrae in Dongyangosaurus indicates that a higher diversity of titanosauriformes occurred during the early Late Cretaceous in China.

    Abstract:

    A new titanosauriform sauropod Dongyangosaurus sinensis gen. et sp. nov. from the early Late Cretaceous of Dongyang County, Zhejiang Province, is erected based on a partial postcranial skeleton. It is characterized by complex laminae on the lateral surface of the neural spines and postzygapophyses of dorsal vertebrae, a distinct fossa on the ventral surfaces of the prezygapophyses of dorsal vertebrae, distinct fossae are also present on the lateral surface of the postzygapophysis of anterior caudal vertebrae; pubis is shorter than ischium, the small obturator foramen of pubis elongated, and nearly closed. The lamina complexity of dorsal vertebrae in Dongyangosaurus indicates that a higher diversity of titanosauriformes occurred during the early Late Cretaceous in China.

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Lü Junchang, Yoichi Azuma, Chen Rongjun, Zheng Wenjie, Jin Xingsheng.2008. A New Titanosauriform Sauropod from the Early Late Cretaceous of Dongyang, Zhejiang Province[J]. ACTA GEOLOGICA SINICA(English edition),82(2):225~235

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  • 收稿日期:2008-02-13
  • 最后修改日期:2008-03-05
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