Neogene mammalian fauna in Myanmar-猫眼课题宝

DOI：

发表时间：

2006

期刊：

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

M. Takai;H. Saegusa;Thaung-Htike;Zin-Maung-Maung-Thein-Zin-Maung-Maung-Thein-1402677736

本文综述了缅甸勃固层和伊洛瓦底江层的新近纪哺乳动物化石，并与南亚（印度和巴基斯坦）和东亚（中国）的同期哺乳动物群进行了比较。尽管迄今为止在缅甸发现的化石标本很少，但对其动物群组成的初步分析表明，直到上新世，缅甸动物群与南亚动物群的相似性大于与东亚动物群的相似性。更新世以后，缅甸与东亚（中国南部）的动物交流似乎有所增加。自19世纪以来，缅甸新近纪沉积物中发现了许多哺乳动物化石（例如，法尔科纳，1868年）。1923年，美国自然历史博物馆的巴纳姆布朗博士率领的古生物学考察队收集了大量化石材料，并由科尔伯特（1938年）描述。然而，这些标本大多是大型哺乳动物，如大象或食草性有蹄类动物，大多数标本的地理数据和/或地质年龄不足以进行现代古生物学研究。自1998年以来，缅甸-日本联合考察队继续在缅甸中部进行古生物学工作，特别是在最新的中始新世Pondaung地层和中新世晚期至更新世早期的伊洛瓦底底岩层，主要目的是寻找灵长类动物化石（图1）。伊洛瓦底江层通常与印度-巴基斯坦的西瓦利克群相关，西瓦利克群的厚度估计为2，000 - 5，000米（Bender，1983），伊洛瓦底江哺乳动物群与西瓦利克动物群非常相似（图2）。巴基斯坦北方的西瓦利克群的地质年龄现在被认为是大约18.3-1.5 Ma（巴里等人，2002;纳尔逊，2003）。它传统上被分为三个部分：下西瓦利克、中西瓦利克和上西瓦利克（巴里等人，2002;纳尔逊，2003）。根据哈佛大学团队最近在巴基斯坦北方Potwar高原的综合研究，下西瓦利克（18.3-11.2 Ma）由Kamlial（或Murree）和Chinji组组成，

In this paper, we review the Neogene mammalian fossils from the Pegu and Irrawaddy beds of Myanmar, comparing them with the contemporaneous mammalian faunas of south Asia (India and Pakistan) and east Asia (China). Although fossil specimens discovered in Myanmar so far are scarce, preliminary analysis of their faunal composition suggests greater similarity of the Myanmar fauna to the south Asian fauna thanto the east Asian fauna until the Pliocene. The faunal interchange between Myanmar and east Asia (southern China) seems to have increased after the Pleistocene. Introduction Since the 19th century, many mammalian fossils have been reported from the Neogene sediments of Myanmar (e.g., Falconer, 1868). Much fossil material was collected by the paleontological expedition led by Dr Barnum Brown of the American Museum of Natural History in 1923, and was described by Colbert (1938). However, most of these specimens were of large mammals, such as elephants or herbivorous ungulates, and the locality data and/or geological ages of most specimens are inadequate for modern paleontological study. Since 1998, the Myanmar—Japan Joint Expedition Team has continued paleontological work in central Myanmar, especially at the latest middle Eocene Pondaung Formation and the late Miocene to early Pleistocene Irrawaddy beds, primarily with the intention of finding primate fossils (Figure 1). The Irrawaddy beds are usually correlated with the Siwalik Group in Indo—Pakistan, the thickness of which is estimated to be 2,000-5,000 m (Bender, 1983), and the Irrawaddy mammalian fauna is very similar to the Siwalik fauna (Figure 2). The geological age of the Siwalik Group in northern Pakistan is now considered to be about 18.3-1.5 Ma (Barry et al., 2002; Nelson, 2003). It has traditionally been divided into three parts: the Lower, Middle, and Upper Siwaliks (Barry et al., 2002; Nelson, 2003). According to recent comprehensive work by the Harvard University team in the Potwar Plateau in northern Pakistan, the Lower Siwalik (18.3-11.2 Ma) consists of the Kamlial (or Murree) and Chinji Formations, the

Neogene mammalian fauna in Myanmar

文献摘要

被引文献

相似文献