摘要
浙江金华双龙洞脊椎动物群包括9目24科48种,其中哺乳类47种,爬行类1种.成员中除含有 Ailuropoda melanoleuca baconi, Crocuta ultima, Stegodon orientalis, Megatapirus augustus 和 Sus sp. (cf. xiaozhu)等大熊猫—剑齿象动物群中的典型绝灭种之外,大部分都是现生种类.经 ^(14)C 绝对年代测定,动物群的年代为 7815±385aB.P,晚于江苏溧水神仙洞动物群,早于浙江余姚河姆渡、河南淅川下王岗和广西桂林甑皮岩等遗址动物群,而与云南保山蒲缥遗址动物群接近.研究表明,大熊猫—剑齿象动物群的绝灭年代大约在5000-4000aB. P., 距今5000年的一次降温事件以及后来的人类活动可能是导致这个动物群最后灭绝的直接原因.
The well-known native Ailuropoda-Stegod on Faunas had ever flourished in Pleistocene in South China, and is generally considered died at the end of late Pleistocene. In 1987, the first Holocene Ailuropoda-Stegodon Fauna was discovered at Shuanglong Cave, a famous scenery spot situated in the north of Jinhua, Zhejiang. The faunal assemblage suggests that it be the largest and most integrated of the common Ailuropoda-Stigodon Faunas ever found in the South China Holocene. This discovery is significant not only to the determination of Holocene paleogeography and paleoclimate in South China, but also to the study of its distribution, evolution and extinction. 1. Cave Deposits and Fossiliferous Horizons Shuanglong Cave is located 13 km north of Jinhua, near Dongqian Village with the geographical coordinate of 29°12'N, 119°37'E. It is a horizontal karst cave developed in the thick-be-dded limestone of the Upper Carboniferous Chuanshan Formation, and can be divided into three parts: Outer Hall, Central Hall and lnner Cavern. There are two kinds of deposits in it, one is the solidified tufa and brecciola, the ither loose sediments consisted of clay, sand and micropepble. There collected a great many of vertebrate fossils from reddish yellow loose clay and sand in Inner Cavern, although some are yielded in CentralHall. The fossiliferous deposits in Inner Cavern consist of six layers, and major remains come from the second one. The fossils are all poorly preserved in a state of weak or temperate fossilization. In the light of the assemblages yielded in different horizons, no divergence appear, thus the Shuanglong Cave Fauna is named for them for their conformity as a whole. 2. Characters and age of Shuanglong Cave Fauna Vertebrate fossils collected from Shuanglong Cave contain 48 species, including 47 mammals and 1 reptile, of which 44 species or genera are identical. Its faunal features reflect that it is a common Ailuropoda-Stegodon Fauna ever found in the middle and upper Quaterary of South China. Its noticeable chara
出处
《古脊椎动物学报》
CSCD
北大核心
1992年第5期295-312,338-340,共18页
Vertebrata Palasiatica
关键词
全新世
大熊猫剑齿象
动物群
浙江
Shuanglong Cave at Jinhua
Zhejiang
Holocene
Ailuropoda-Stegodon Fauna
