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通过对山东兖州煤田太原组类动物群的系统研究,共鉴定出类化石12属103种及部分未定种。根据类化石在地层中的分布和垂向变化规律,自上而下建立一个带三个亚带:Schwagerina带:3)Triticitesparvus-Quasifusulinalongissima亚带,2)Schwagerinagregaria-Boultoniawillsi亚带,1)Quasifusulinapseudocayeuxi-Rugosofusulinavalida亚带。通过与邻区及华北部分地区对比,本区太原组类动物群的地质时代为早二叠世早期,本区石炭-二叠系界线应置于太原组第十一层灰岩之底。
A systematic study of the Taiyuan Formation fauna in the Yanzhou coalfield in Shandong Province has identified 103 species of 12 genera and some undetermined species. According to the distribution and vertical variation of fossils in the strata, a belt with three subbands is established from top to bottom: Schwagerina belt: 3) Triticitesparvus-Quasifusulinalongissima sub-belt, 2) Schwagerinagregaria-Boultoniawillsi sub-belt, 1) Quasifusulinapseudocayeuxi-Rugosofusulinavalida Sub-belt. By comparing with the adjacent areas and parts of North China, the geological age of the Taiyuan group fauna in this area is early Early Permian, and the Permo-Carboniferous boundary of this area should be placed at the bottom of the limestone of the eleventh layer of Taiyuan Formation.