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对我国西南滇、黔、桂三省交界地区的广西宜山马脑山、贵州紫云扁平、广西隆林常么剖面常么期类动物群进行了分析和对比，认为分别发育于上述三剖面中的Ｐｓｅｕｄｏｅｎｄｏｔｈｙｒａｄｉｓ－ｃａｌｉｓ带，Ｐａｍｉｒｉｎａｄａｒｖａｓｉｃａ带，Ｐｓｅｕｄｏｆｕｓｕｌｉｎａ（Ｌａｘｉｆｕｓｕｌｉｎａ）－Ｃｈａｌａｒｏｓｃｈｗａｇｅｒｉｎａｉｎｆｌａｔａ带代表了常么期三个同期异相的类动物群。对各剖面沉积环境的研究表明，造成常么期类动物群同期异相的主要原因是环境的差异：１）在水动力强的台地边缘环境，类动物群以希瓦格亚科分子繁盛为特征，壳体为纺锤形、长纺锤形，隔壁强烈褶皱。２）在具中等水循环的开阔台地，Ｐａｍｉｒｉｎａ分子繁盛，壳体微小，多为球形，隔壁平直。３）在宁静的局限台地环境，类动物群则以Ｐｓｅｕｄｏｅｎｄｏｔｈｙｒａ富集为特色，壳体呈透镜状，隔壁平直，内部构造简单。研究结果表明，常么期类动物的水平分布与同期沉积相的空间展布有着内在的一致性。
This paper analyzes and compares the common pelagic fauna in Guangxi Yishan Matuo Mountain, Guizhou Ziyun Flat and Changlin Section of Longlin, Guangxi Province in the border areas of Yunnan, Guizhou and Guangxi provinces in southwest China. It is believed that they are respectively developed in the above three profiles Pseudoendothyradis-calis zone, Pamirinadarvasica zone, Pseudofusulina (Laxifusulina) -Chalaroschwagerinainflata zone represent the same period of three contemporaneous heterogeneous fauna. The study on sedimentary environment of each profile shows that the main reason for the out-phase of the normal monstrous fauna at the same period is the difference in environment: 1) In the hydrodynamically strong platform margin environment, Molecular prosperous features, the shell is spindle-shaped, long spindle-shaped, strong folds next door. 2) On open meadows with medium water circulation, Pamirina is a flourishing molecule with a small shell, mostly spherical, with straight walls next to each other. 3) In a quiet, localized setting, the fauna characteristic of the Pseudoendothyra enriches the shell with a lenticular shape with straight walls and a simple internal structure. The results show that there is an internal consistency between the horizontal distribution of fauna and the spatial distribution of sedimentary facies in the same period.