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本文采用ＡｎｉｔａＨａｒｒｉｓ建立的统一标准，编制了中国中部和北部地区奥陶系─三叠系的１５幅牙形刺ＣＡＩ图，并作了说明，这对找油找气具有十分重要的意义。
In this paper, fifteen conodonts CAI images of Ordovician Triassic in the central and northern regions of China were prepared by using the unified standard established by Anita Harris. The CAI diagrams of 15 conodonts were made and explained, which is of great significance to find oil.