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qian nan gui bei shi tan xi zhong jian jie xian ji qi shang xia ceng wei de ya xing ci
Pages: 261-276+3327+328
Year: Issue:  3
Journal: Acta Micropalaeontologica Sinica

Keyword:  牙形刺石炭系中间界线黔南桂北;
Abstract: 本文描述了贵州罗甸和广西南丹石炭系中间界线上、下层位中的牙形刺共10属29种和亚种;自下而上建立了Gnathodusbilineatusbollandensis,Declinognathodusnoduliferus,Idiognathoidessulcatus和I.sinuatus等牙形刺带。石炭系中间界线应以Declinognathodusnoduliferus的首次出现为准。
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