【作者】 赵英娘； 王大宁； 孙秀玉；

【Author】 Zhao Ying-niang Wang Da-ning Sun Xiu-yu (Institute of Geology Chinese Academy of Geological Sciences)

【机构】 中国地质科学院地质研究所；

【摘要】 <正>河南卢氏盆地自李悦言(1938)发现哺乳动物化石后,周明镇(1957)在孟家坡一带采到大量晚始新世哺乳类化石,建立了卢氏组(层)。河南第四地质大队将卢氏盆地第三系自下而上分为卢氏组、何家沟组和大峪组。童永生、王景文于1979年在锄钩峪发现了晚始新世晚期的哺乳动物群,将卢氏盆地早第三纪地层分为卢氏组(包括十里铺组)、锄钩峪组和大峪组。新建锄钩峪组,其化石虽采自卢氏盆地之锄钩峪沟,但完整的地层剖面更多还原

【Abstract】 The Tertiary strata of the Tayu Small Basin in Lushi Region,W.Henan were subdivided by the Fourth Geological Team of Henan Geological Bureau into Lushi Formation,Hejiagou Formation and Tayu Formation in ascending order.Later,as Tong Yong-sheng and Wang Jing-wen discovered Late Eocene mammalian fossils in Chugouyu,the name of Hejiagou Formation was changed into Chugouyu Formation,but the two formations are lithologically different. The Hejiagou Formation is coal bearing.Abundant spores and pollen collected from the Hejiagou Formation have been shown to be Paleocene in age,on the ground that the spore-pollen assemblage is poor in spores,but rich in gymnos- permous bisaccate pollen and predominating in angiospermous palynomorphs. So,the Hejiagou and“Chugouyu”Formations belong to two distinct units of different ages and there is no ground to change the name of the first forma- tion into“Chugouyu”.However,the name Hejiagou should be replaced by a new one,because it is synonymous with the Hejiagou Formation of Heilung- jiang Province.更多还原