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Biostratigraphical and paleontological studies on Late Cenozoic vertebrate fauna in Kyushu and its adjacent areas.

九州及其邻近地区晚新生代脊椎动物群的生物地层学和古生物学研究。

基本信息

批准号：
63540631
负责人：
OTSUKA Hiroyuki
金额：
$ 1.02万
依托单位：
Kagoshima University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63540631/
关键词：
Palaeovertebrate Palaeogeography Kyushu Correlation Biostratigraphy Late Cenozoic Continental shelf 古生物対比

项目摘要

In this study, the palaeovertebrate faunas of the late Neogene and the Pleistocene in Kyushu and the continental shelves of Yellow Sea and East China Sea are investigated in detail with special reference to the biostratigraphy and the palaeogeography of the Japanese Islands and the Asiatic Continents.1. From the Sasebo and the Nojima Groups in the northwestern Kyushu, many vertebrate fossils showing the faunal resemblance to those from the middle Miocene Mizunami Group in Central Japan are found. 2. For the purpose of biostratigraphic zoning, the Plio-Pleistocene formations in Kyushu can be divided into following seven units. These subdivisions are based on the geologic range of vertebrate remains yielded, especially of proboscidean fossils: 1) Stegodon bombifrons Zone,2) Stegodon insignis Zone, 3) Stegodon akashiensis Zone, 4) Mammuthus armeniacus proximus Zone, 5) Stegodon aurorae Zone, 6) Stegodon orientalis Zone and 7) Palaeoloxodon naumanni Zone, in ascending order. These mammalian zones in Kyushu are correlated to the zones known in the Plio-Pleistocene formations in Honshu.3. Recently, numerous specimens of vertebrate fossils were collected from many submarine locations of the Yellow Sea, East China Sea and the Taiwan strait. The vertebrate faunas are characterized by predominance of herbivorous mammals of the grassland, forests and swamp habitants and it may be said as the Palaeoloxodon haihouensis-Elaphurus mayai Complex. These faunas, furthermore, are considered to be represent the Middle Pleistocene Zhoukoutien Fauna in North China and the Palaeoloxodon-Nipponicervus Complex in the Seto Inland Sea of West Japan.

本研究对日本九州、黄海和东海大陆架晚第三纪晚期和更新世的古脊椎动物群进行了详细的研究，并对日本列岛和亚洲大陆的生物地层和古地理进行了详细的研究.在九州西北部的佐世保群和野岛群中发现了许多与日本中部中新世中期米祖伊群的脊椎动物化石。为了进行生物地层分带，九州地区上新世-更新世地层可划分为以下7个单元。这些分区是基于脊椎动物遗骸的地质范围，特别是长鼻类化石的地质范围，从上到下依次为：1）Stegodon bombifrons带，2）Stegodon insignis带，3）Stegodon akashiensis带，4）Mammuthus armeniacus proximus带，5）Stegodon aurorae带，6）Stegodon orientalis带和7）Palaeoloxodon naumanni带。九州的这些哺乳动物带与本州上新世-更新世地层中已知的带相对应。近年来，在黄海、东海和台湾海峡的许多海底地点采集到了大量的脊椎动物化石标本。脊椎动物区系以草食性哺乳动物为主，主要生活在草原、森林和沼泽中，可称之为Palaeoloxodonhaihouensis-Elaphurusmayai复合体。这些动物群代表了华北地区中更新世周口店动物群和西日本濑户内海的古牛齿-日本鹿复合体。