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タイトル: The Late Miocene Large Mammal Fauna from the Namurungule Formation, Samburu Hills, Northern Kenya
著者: NAKAYA, Hideo
PICKFORD, Martin
NAKANO, Yoshihiko
ISHIDA, Hidemi
発行日: Mar-1984
出版者: The Research Committee for African Area Studies, Kyoto University
誌名: African Study Monographs. Supplementary Issue.
巻: 2
開始ページ: 87
終了ページ: 131
抄録: By the Japan-Kenya Expedition, more than 1145 late Miocene vertebrate fossils were collected from the Namurungule Formation in Samburu Hills, Northern Kenya in 1982. These fossils are assigned to at least 29 taxa of which 21 are mammals, including Hominoid, Tetralophodon, two kinds of Hipparion, Brachypotherium, Kenyapotamus, and Pachytragus. Quantitatively, the taxa of Hipparion are the most predominant. But gomphothere, bovid, rhinocerotid and giraffid fossils are approximately as common as each other at Namurungule. Suids, hippopotamids and carnivores seem to be uniformly rare as fossils at Samburu. In this paper, 19 taxa of mammals are described and discussed briefly. The Namurungule mammalian fauna is closer in age to Ngorora (c. 11 m.y.) than to Mpesida (7 m.y.) from Kenya, and this fauna is similar to the faunas of Samos and Pikermi (Vallesian). It seems that the abundance of Hipparion, giraffids, rhinocerotids and bovids suggests a woodland to savannah environment at or near Namurungule during the upper Miocene. We find very little evidence to suggest that there was forest in the vicinity at the time of deposition.
DOI: 10.14989/68313
URI: http://hdl.handle.net/2433/68313
出現コレクション:2 (Study of the Tertiary Hominoids and Their Palaeoenvironments in East Africa: 2)

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