Xuejian Zhu
Chinese Academy of Sciences
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Featured researches published by Xuejian Zhu.
Journal of Paleontology | 2017
Shanchi Peng; Loren E. Babcock; Xuejian Zhu; Qianping Lei; Tao Dai
Abstract. Restudy of the limestone slab containing the type suite of Arthricocephalus chauveaui Bergeron, 1899 (Trilobita), the type species of Arthricocephalus Bergeron, 1899, shows that specimens of three species, each representing a separate genus, are present on the slab and were likely included in the original concept of the species. Besides A. chauveaui, the slab contains specimens of Oryctocarella duyunensis (Qian, 1961) and Duyunaspis duyunensis Zhang and Qian in Zhou et al., 1977. Bergeron (1899) illustrated one exoskeleton from the type suite of A. chauveaui only and apparently based much of his written description on that specimen. This specimen was clearly intended to be the type specimen of A. chauveaui. Subsequently, Lane et al. (1988) designated another specimen, which was not originally illustrated, as the lectotype, and this specimen is referable to Oryctocarella duyunensis. As revised here, Bergerons illustrated specimen should be regarded as the lectotype of A. chauveaui. Such designation stabilizes the concepts of both Arthricocephalus and A. chauveaui. Arthricocephalites Qian in Lu et al., 1974 and Haliplanktos Blaker and Peel, 1997 are regarded as junior synonyms of Arthricocephalus. Oryctocarella Tomashpolskaya and Karpinski, 1961, which was previously regarded as a junior synonym of Arthricocephalus, is revived as a valid genus. Oryctocarella includes a number of species previously assigned to Arthricocephalus. The type species of both Arthricocephalus and Oryctocarella, together with related species, are described on the basis of new material.
Journal of Earth Science | 2018
Jingxun Zuo; Shanchi Peng; Yuping Qi; Xuejian Zhu; Gabriella Bagnoli; Huaibin Fang
Cambrian carbonates with abundant fossils of agnostoid trilobites deposited on the southern slope (Jiangnan slope belt) of the Yangtze Platform and in the Jiangnan deepwater basin are well exposed in the Wangcun Section of western Hunan, South China, and in the Duibian A Section of western Zhejiang, southeastern China, respectively. To better understand the response of carbon-isotope excursions to depositional environment changes, mass extinctions and eustatic events, we collected 530 carbonate samples in fresh roadcut exposures of the two measured sections for analysis of carbon and oxygen isotopic compositions. Data of δ13C from the Wangcun Section, western Hunan, South China, demonstrate that the Cambrian carbon-isotope profile includes three remarkable positive excursions CPEwc-1, 2, 3 in the Upper Series 2, in the Lower and in the Middle Furongian Series. Three distinctive negative excursions CNEwc-1, 2, 3 were separately tested in the Lower Terreneuvian Series, Lower Series 3 and in the Upper Furongian Series. Similarly, in the corresponding horizons in the Duibian A Section, Zhejiang Province, southeastern China, three positive excursions CPEdb-1, 2, 3 and three negative excursions CNEdb-1, 2, 3 also have been discovered. We interpret these significant carbon-isotope excursions as being associated with enhanced biogenic productivity, mass extinctions and eustatic events.
Episodes | 2009
Shanchi Peng; Loren E. Babcock; Jingxun Zuo; Huanling Lin; Xuejian Zhu; Xianfeng Yang; Richard A. Robison; Yuping Qi; Gabriella Bagnoli; Yong’an Chen
Episodes | 2012
Shanchi Peng; Loren E. Babcock; Jingxun Zuo; Xuejian Zhu; Huanling Lin; Xianfeng Yang; Yuping Qi; Gabriella Bagnoli; Longwu Wang
Geobios | 2004
Shanchi Peng; Xuejian Zhu; Loren E. Babcock; Haifeng Wang
Bulletin of Geosciences | 2015
Shanchi Peng; Loren E. Babcock; Xuejian Zhu; Per Ahlberg; Fredrik Terfelt; Tao Dai
Science in China Series D: Earth Sciences | 2009
Shanchi Peng; Loren E. Babcock; Jingxun Zuo; Huanling Lin; Xuejian Zhu; Xianfeng Yang; Yuping Qi; Gabriella Bagnoli; Longwu Wang
Acta Geologica Sinica-english Edition | 2011
Shanchi Peng; Xuejian Zhu; Jinxun Zuo; Huanling Lin; Yong-An Chen; Longwu Wang
Gff | 2014
Shanchi Peng; Loren E. Babcock; Xuejian Zhu; Jingxun Zuo; Tao Dai
Palaeoworld | 2006
Shanchi Peng; Loren E. Babcock; Jingxun Zuo; Huanling Lin; Xuejian Zhu; Xianfeng Yang; Richard A. Robison; Yuping Qi; Gabriella Bagnoli; Yong-An Chen