Notes on Vertebrate Fossils from Late Pleistocene to Holocene of Ryukyu Islands, Japan
Notes on Vertebrate Fossils from Late Pleistocene to Holocene of Ryukyu Islands, Japan
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日本琉球群岛晚更新世至全新世脊椎动物化石记
DOI：
10.4116/jaqua.18.263
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
Y. Hasegawa
中科院分区：
文献类型：
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作者：
Y. Hasegawa
对近更新世晚期的冲绳哺乳动物群进行了讨论。琉球群岛以丰富的中新世鹿化石而闻名。山下町人类化石遗址, 32, 100±1, 000y.B.P. （TK-78）年龄，产生鹿化石，但没有其他哺乳动物。另一方面，在凑川男子的现场，18岁，250±650y.B.P. (TK-99) 至 16, 600±300y.B.P. (TK-142)随着年龄的增长，鹿化石逐渐减少，而野猪化石明显增加。这表明琉球野猪取代了鹿的地位。野猪生活在奄美大岛、冲绳、石垣岛和西表岛等岛屿上，许多贝丘表明野猪的存在。苏斯的迁徙很可能发生在凑川人时代，即亚龙盛期时期。从地质学上讲，琉球群岛当时应该已经与大陆分离，但苏斯的出现表明，即使在亚龙盛期，琉球群岛也与大陆部分相连。
The mammalian fauna of Okinawa in the period from Late Pleistoceneto Recent is discussed. The Ryukyu Islands are known for abundant occurrence of deer fossils of Miocene type. The Yamashita-cho site of fossil man, 32, 100±1, 000y.B.P. (TK-78) in age, yields deer fossils and no other mammals. On the other hand, at the site of the Minatogawa man, 18, 250±650y.B.P. (TK-99) to 16, 600±300y.B.P. (TK-142) in age, deer fossils become few while boar fossils increase remarkably. This indicates that the Ryukyu boar gained ground taking the place of deer.Wild boars are living in such islands as Amami Oshima, Okinawa, Ishigaki and Iriomote, and many shell-mounds reveal the existence of boar. In all probability, migration of Sus must have taken place since the time of the Minatogawa man, that is, during the Wurm maximum. Geologically the Ryukyu Islands are supposed to have been already separated from the continent at that time, but the occurrence of Sus suggests that the islands were partly connected with the continent even in the Wurm maximum.