中国全新世大暖期哺乳动物与气候波动

PALEOCLIMATIC FLUCTUATIONS AND MAMMALS IN HOLOCENE MEGATHERMAL IN CHINA

中国全新世哺乳动物群有众多地点，并已作了详细研究，绝大多数地点有￣（１４）Ｃ的年代测定。全新世—更新世的界线，作者根据哺乳动物及￣（１４）Ｃ年代测定，在１２—１０ｋａＢ．Ｐ．之间，可作为二者之间的过渡层位，以１０ｋａＢ．Ｐ．可作为全新世的开始。中国的全新世大暖期出现于８．５—３；０ｋａＢ．Ｐ．，在此期间内的哺乳动物偏南种类较为明显，如亚洲象、苏门犀及爪哇犀等。在５．６—３．０ｋａＢ．Ｐ．这一时期内的气候波动剧烈，动物变化较多，南、北类型混杂。河南淅川下王岗遗址延续时间长，从距今６０００—２５００年之间，各层位皆有动物化石，显示了较为可靠的气候波动。

Some Holocene mammalian faunas of China have been studied in detail and dated by￣(14)C technique as follows:The mammalian faunas were in the transition from Late Pleistocene to modern fau-nas in China during Holocene.In the four sites of these faunas remained old species suchas Crocuta ultima,Coelodonta antiqutatis,Palaeoloxodon sp.etc. ￣(14)C dating of the fossilsfrom the four sites is 12-10kaB. P. The Holocene Megathermal appeared in about 8.5 3.0kaB. P. especially in7.5 6.0 kaB. P. in China. Some tropical or subtropical speciesmigrated to North China during Holocene Megathermal.