贵州毕节麻窝口洞与智人伴生的长鼻类化石

发布时间：2018-02-27 08:07

本文关键词： 长鼻类智人麻窝口洞贵州毕节更新世　出处：《人类学学报》2017年03期 　论文类型：期刊论文

【摘要】：最近在贵州毕节麻窝口洞发现了3枚古人类牙齿化石和伴生的哺乳动物群。其中,古人类牙齿经初步研究可归入解剖学上的现代人,而与古人类相伴的大、小哺乳动物化石,经初步鉴定共计8目20科43属53种。本文系统记述了该动物群中大哺乳动物的典型代表——长鼻类化石,共2属2种:东方剑齿象(Stegodon orientalis)和亚洲象(Elephas maximus)。麻窝口洞的长鼻类缺失我国南方早更新世的典型种类——中华乳齿象(Sinomastodon)和华南剑齿象(Stegodon huananensis),具有从典型的中更新世大熊猫-剑齿象动物群(Ailuropoda-Stegodon fauna)向晚更新世亚洲象动物群(Asian elephant fauna)过渡的特征。依动物群的性质和地貌地层的特征,毕节麻窝口洞的智人及伴生动物群的地质时代很可能为中更新世晚期或晚更新世早期,这与堆积物的光释光年代测定的初步结果(距今约11.2-17.8万年)基本吻合。麻窝口洞东方剑齿象与亚洲象的组合明显具有东洋界亚热带动物群的特点,指示温暖潮湿的气候,这些长鼻类与智人等生存于近水的森林和灌丛中,并镶嵌了一些草地。
[Abstract]:Recently, three paleohuman tooth fossils and associated mammals were found in Mawokou cave, Bijie, Guizhou. Among them, paleo human teeth can be classified as anatomical modern humans, while large and small mammal fossils concomitant with paleohumans. A total of 53 species belonging to 43 genera, 43 genera, 20 families, 8 orders, have been preliminarily identified. There are 2 genera and 2 species: Stegodon orientalisis) and Elephas maximusus. Typical species of early Pleistocene in southern China, Sinomastodon, and Stegodon huananensis of southern China, have been found in Mawaguchi, China, and Stegodon Huananensis, which is a typical Middle Pleistocene giant panda. -characteristics of the transition from Ailuropoda-Stegodon fauna to the late Pleistocene Asian elephant fauna, depending on the nature of the fauna and the characteristics of the geomorphological strata, The geological age of the Homo sapiens and associated fauna in Mawokou cave, Bijie, is probably late Middle Pleistocene or early late Pleistocene. This basically coincides with the preliminary results of the photoluminescence dating of the deposits (about 11.2-17.8 million years ago). The combination of the eastern saber tooth and the Asian elephant in Mawukou is obviously characterized by the subtropical fauna of the Eastern Ocean, indicating a warm and humid climate. These long noses and Homo sapiens live in near-water forests and thickets, and inlay grasslands.
【作者单位】：中国科学院古脊椎动物与古人类研究所中国科学院脊椎动物演化与人类起源重点实验室;中国科学院大学;贵州省文物考古研究所;贵州省博物馆;
【基金】：中国科学院古生物化石发掘与修理专项经费;中国科学院战略性先导科技专项(XDPB05)资助国家自然科学基金项目(41672022)
【分类号】：Q915

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