研究了二叠纪未生物大灭绝事件后双壳类的首次辐射,辐射的代表是贵州青岩地区中三叠世Anisian晚期的青岩生物群,共50余属100余种,归在5亚纲10目18超科32科。以往通常认为双壳类的辐射发生在晚三叠世,以阿尔卑斯地区圣·卡息安生物群为最早代表;但根据研究,大灭绝后双壳类的首次辐射时代比以往认为的圣·卡息安生物群早约1000万年。 The first radiation of bivalves after the unmanaged extinction of the Permian was studied. The representative of the radiation is the Late Triassic Anisian Qingyan biota in the Qingyan area, Guizhou. There are over 50 genus and over 100 species belonging to the 5-subclass 10 Head 18 super subjects 32 subjects. In the past, it was generally considered that the bivalve radiation occurred in the Late Triassic, with the first to represent the St. Kacanian biota in the Alps. However, according to the study, after the extinction, the first radiation of bivalves was older than that of St. Card Interest in the biological communities as early as 10 million years.