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CONODONTS ACROSS THE LOWER-MIDDLE PERMIAN BOUNDARY IN SOUTH GUIZHOU- SETTING THE GUADALUPIAN BASE
Author(s): Wang Zhi-hao
Pages: 422-
429,图版Ⅰ
Year: 2000
Issue:
4
Journal: ACTA MICROPALAEONTOLOGICA SINICA
Keyword: 牙形刺; 下-中二叠统界线瓜达鲁平统; 黔南;
Abstract: 本文详细研究了贵州罗甸纳水剖面下-中二叠统界线、即瓜达鲁平统(Guadalupian)底界附近的牙形刺动物群,并自上而下划分为Mesogondolella,siciliensis-M.Phosphoriensis,Mesogon dolella idahoensis-M.Phosphoriensis,Mesogonndolella gujioensis-M.Intermedia和Mesogondolella shindyensis-Neostreptogrtathodus Jeonovae等组合带.在国际上,暖水型Mesogondolella nankingensis的首次出现是瓜达鲁平统底界的标志.但在黔南地区,凉水(冷水)型Mesogondolella siciliensis的首次出现则为瓜达鲁平统底界的标志.
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