有时将古生物学分为古植物学(植物化石研究)、古动物学(动物化石研究)以及古生态学。
Sometimes the subject is divided into paleobotany, the study of fossil plants, paleozoology, the study of fossil animals, and paleoecology.
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。
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.
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