权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Palaeoanthropological study of Homo erectus in Indonesia

印度尼西亚直立人古人类学研究

基本信息

批准号：
08041163
负责人：
BABA Hisao
金额：
$ 5.12万
依托单位：
National Science Museum, Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

The island Java has yielded a number of well-preserved Pleistocene hominid fossils, including the oldest ones so far as known from Fast Asia. In order to answer various questions concerning human evolution in Asia, we have conducted morphological study on existing hominid fossil materials, excavation with the aim of finding new hominid fossils, investigation on the stratigraphic level of existing and newly discovered fossils, and so on. Major activities and results during this research period are as follows :1. Laboratory works(1)New information on the facial morphology of Javanese Homo erectus have been obtained from the study based on the new reconstruction of Sangiran 17, the most well-preserved material among the Javanese Lower/Middile. pleistocene hominid fossil skulls. For example, the zygomatic of the Javanese Homo erectus was revealed to be considerably large, indicating that their masseter muscles were well-developed. In addition, prognathism of this taxon was revealed to be not so strong as has been believed.(2)Morphology of the newly discovered hominid fossils was examined.2. Field researches(3)Three hominid fossils were newly discovered. One of them (lower central incisor) has been found from a systematic excavation and its stratigraphic level is securely known. This find is important in a context that almost all the hominid fossils from Java have been found and collected by nonprofessional local inhabitants and accordingly their exact stratigraphic position remains equivocal.(4)Stratigraphic levels of some of existing and newly discovered hominid fossils were confirmed through stratigraphic, palaeomagnetic, and rock magnetic studies, and their absolute ages were discussed.

爪哇岛出土了许多保存完好的更新世人科动物化石，其中包括迄今为止在快速亚洲发现的最古老的化石。为了回答有关亚洲人类进化的各种问题，我们开展了对现有人科化石材料的形态学研究、以发现新人科化石为目的的发掘、对现有和新发现化石的地层水平调查等工作，主要活动和成果如下：1.实验室工作（1）根据Sangiran 17的新重建的研究获得了关于爪哇直立人面部形态的新信息，Sangiran 17是爪哇下/中地区保存最完好的材料。更新世原始人头骨化石。例如，爪哇直立人的躯干被发现相当大，表明他们的咬肌发育良好。此外，本分类群的双颌现象被揭示为不像所相信的那样强烈。（2）对新发现的原始人类化石进行了形态学检查。野外研究（3）新发现人科化石3件。其中之一（下中切牙）已被发现，从系统的挖掘和其地层水平是安全的。这一发现是重要的，因为几乎所有来自爪哇的原始人类化石都是由非专业的当地居民发现和收集的，因此它们的确切地层位置仍然不明确。（4）通过地层学、古地磁学和岩石磁学研究，确定了部分现存和新发现的人科化石的地层级别，并讨论了它们的绝对年龄。