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贵州青岩地区的青岩组上部包括雷打坡段和渔庆段,其中,雷打坡段的化石特别丰富,为研究二叠纪末生物大灭绝后底栖动物的辐射和群落演化提供了十分重要的信息。根据青岩组雷打坡段和渔庆段的菊石重新研究,划分出两个组合:1)安尼期中期的最晚阶段(latest middle Anisian)的Bulogites-Acrochordiceras组合;2)安尼期晚期的最早阶段(earliest late Anisian)的Rieppelites-Judicarites组合。其中,Bulogites-Acrochordiceras组合包括了该时代的标志属Bulogites和Acrochordiceras,另有属Proarcestes,Sageceras和Beyrichitinae的未定属;此组合可与意大利北部和匈牙利的Bulogites zoldianus带对比,也可与美国内华达州西北部Balatonites shoshonensis带的Bulogites mojsvari亚带对比。Rieppelites-Judicarites组合包括了该时代的标志属Rieppelites和Judicarites,另有特征属Ptychites和Gosauites;该组合可与意大利北部的Rieppelites ci meganus带对比,也可与美国内华达州西北部Gymnotoceras weitschati带的Billingsites cordeyi亚带对比。上述组合表明,青岩剖面的青岩组最高层位并不包含安尼期最晚期沉积,因此,该组历程不等于整个安尼期。根据所得化石以及对已发表材料的复核,认为以往的“Paraceratites trinodosus”等安尼期晚期属种名单鉴定有误。青岩地区的安尼期中期/晚期界线在雷打坡段中部的靠下方。在富含化石的雷打坡剖面界线在其中部的靠上方。雷打坡化石组合的历程等于一个短时期,正好包围安尼期中期/晚期界线。
The upper part of Qingyan Formation in Qingyan area of Guizhou Province includes the Lepachu section and the Yueqing section. Among them, the fossils in the Lepacho section are extremely rich, which is very important for studying the radiation and community evolution of zoobenthos after the end-Permian extinction Information. According to the reanalysis of the ammonites in the Lei-topo section and the Yueqing section of the Qingyan Formation, two combinations are made: 1) the Bulgous-Acrochordiceras assemblage of the latest middle Anisian; 2) The earliest late Anisian Rieppelites-Judicarites combination. Among them, the Bulogites-Acrochordiceras assemblage includes the Bulogites and Acrochordiceras and the undetermined genus Proarcestes, Sageceras and Beyrichitinae; the combination is comparable to the Bulogites zoldianus in northern Italy and Hungary, Contrast of Bulogites mojsvari subtropical zone in Balatonites shoshonensis. The Rieppelites-Judicarites assemblage includes the age-specific markers Rieppelites and Judicarites, as well as Ptychites and Gosauites. The combination is comparable to the Rieppelites ci meganus band in northern Italy and to the Billingsites cordeyi band in the Gymnotoceras weitschati band in northwestern Nevada Sub-band contrast. The above combination shows that the highest level of the Qingyan Formation in Qingyan section does not contain the most recent Ani-Yan sediments. Therefore, the history of this group is not equal to that of the entire Annyi period. According to the obtained fossils and the review of the published materials, it is considered that the list of the late Anzacs in the past such as “Paraceratites trinodosus” has been incorrectly identified. The middle and late Ani phase of the Qingyan area lies below the middle of the Leipzig section. The boundary of the fossil-rich Thredapo section is above its middle. The course of the Thracian fossil assemblage is equal to a short period, just surrounding the mid-late Annihilation boundary.