late carboniferous early permian 晚石炭世早二叠世
Late Carboniferous -Early Permian 晚石炭早二叠世
Late Carboniferous and Early Permian 晚石炭世和早二叠世
late carboniferous to early permian 晚石炭世至早二叠世
On the basis of the study on the flora characteristic of the late late Carboniferous and early early Permian in the Helan Mountains, the palaeoecology study on this flora has been analyzed.
在综合研究了贺兰山北段晚石炭世晚期和早二叠世早期植物群的特征和性质的基础上，对此植物群进行了古生态学方面的分析研究。
The collisional orogenesis in the area occurred in the Carboniferous and Permian, and shows the character of the early compression and late extension.
该区的碰撞造山作用主要发生在石炭纪和二叠纪，并经历了先挤压后伸展的演化过程。
Based on the study of small foraminiferal fauna in the Late Carboniferous and Early Permian in Feicheng coalfield, 25 genera and 73 species of small foraminiferal fossils are identified.
通过对肥城煤田晚石炭-早二叠世小有孔虫动物群的研究，共鉴定出小有孔虫化石25属73种。
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