... 石炭二迭系 permo-carboniferous system 二迭-三迭纪的 Permo-Triassic 过多主晶的 peroikic ...
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permo-triassic boundary 二叠系三叠系界线
the permo-triassic boundary pt界线
Permo-Triassic Events of South CHina 华南二叠
Several new data on the Upper Permian and Permo-Triassic boundary in Huangshi area are reported in the paper, a number of significant fossils were collected from these stratigraphical units.
笔者近年对黄石地区上二叠统及下三叠统进行了研究，采到了有时代意义的化石。
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