A Primitive Mammoth Molar from Himeshima Island, Oita Prefecture, Western Japan
A Primitive Mammoth Molar from Himeshima Island, Oita Prefecture, Western Japan
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来自日本西部大分县姬岛的原始猛犸象臼齿
DOI：
10.4116/jaqua.46.399
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
T. Inada
中科院分区：
文献类型：
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作者：
Y. Kawamura;H. Taruno;T. Inada
对采自喜马岛的一只象臼齿进行了系统的详细描述。它是从离岛海岸很近的海底采集的，可能发生在那里暴露的早更新世至中更新世沉积。根据其形态特征，该磨牙被归属于猛犸象的右侧M3，这是猛犸象的原始物种之一。该臼齿与日本和邻近大陆已知的原始猛犸象M3进行了比较。根据所获得的资料和有关该物种的最新知识，讨论了东亚地区黄胸鼠的时间分布和迁徙。
An elephant molar from Himeshima Island is systematically described in detail. It was collected from sea-bottom very near the coast of the island, and probably occurred from the Early to Middle Pleistocene sediments exposed there. The molar is assigned to a right M3 of Mammuthus trogontherii, one of primitive mammoth species ancestral to the woolly mammoth, on the basis of its morphological characters. The molar is compared with M3 of primitive mammoths known from Japan and the adjacent continent. The temporal distribution and migration of M. trogontherii in East Asia are discussed in the light of the data obtained as well as recent knowledge on the species.