摘要
作青在牤石沟相继发掘出大量哺乳动物化石,经对比分析,认为牤石沟河湖相沉积物及产出的化石,应归属大青沟组及大青沟动物群。通过对大青沟组孢份组合所反映的古气候类型和哺孔动物化石反映的生态类型,以及同中国北方中更新世哺乳动物对比,得知大青沟组是中更新世温暖略湿气候环境的产物,其形成时代大大晚于兰田公王岭动物群,而与周口店哺乳动物群相近或略老于它。
A large number of mammalian fossils have been found one after another br the authors from Mangshigou.Through analysis and comparision,the river-lacustrine facies deposits and the fossils contained should be included in the Daqingou Formation and the Daqinggou Fauna respectively. According to the plaeoclimate type indicated in the spore-pollen assemblage of the Daqinggou Formation,ecological types of the mammalian fauna and the correlation between the fauna and the middle Pleistocene mammalian fauna of north China it can be known that the Daqinggou Formation was formed in middle Pleistocene warm and somewhat wet environment,the age being later than that of the Gongwangling Fauna from Lantian or nearly the same as or somewhat older than that of Zhoukoudian Mammalian Fauna.
