桑干河阳原县丁家堡水库全新统中的动物化石

<正> 1976年,河北省阳原县丁家堡水库在施工过程中,从桑干河河床底部全新统的地层里发现了一批动物化石。阳原县文化馆张玉秀和李风成对发现的材料及时进行了收集,并立即写信向中国科学院古脊椎动物与古人类研究所反映了有关情况。随后,中国科学院古脊椎动物与古人类研究所派人到现场作了调查,并将发现的材料作了研究,现报告如下。

SOME ANIMAL FOSSILS FROM THE HOLOCENE OF N.CHINA

Some animal fossils were discovered from the Holocene stratum being over 10metres below the surface of the cauce of the Sangganhe River,at Dingjiabu Reser-voir(40°06′N.,114°20′E.)in Yangyuan County,Hebei Province.The discovered fossils are:Lepidodesma languilati,Lamprotula bazini,Unio doug-lasiae,Corbicula aurea,Hippeutis sp.,Threskiornis cf.aethiopica,Nyctereutes pro-cyonoides,Elephas maximus Equus przewulskyi,Coelodonta antiquitatis,Cervus elap-hus and Bos pri migenius.In the site,there is a lot of tree trunks associated with the fossils discovered.Thetrunk for C-14 dating gives a date of 3630±90 or 3830±85 years ago which is appro-ximately corresponding to the age of the Late Hsia or the Early Shang(Yin)Dynastyof China.Here,as you see,part of the discovered materials,such as Lepidodesma languilatiand Elephas maxi mus etc.,suggests that the climate of N.China then basically was thesame as that of S.China now,and indicates that some animals,such as Bos pri migeniusand Coelodonta antiquitatis etc.,were not extinct at the Late Pleistocene in N.China,they still survived at the Holocene in N.China.