著者

YUTAKA KUNIMATSU YOSHIHIRO SAWADA TETSUYA SAKAI MOTOTAKA SANEYOSHI HIDEO NAKAYA AYUMI YAMAMOTO MASATO NAKATSUKASA

出版者

The Anthropological Society of Nippon

雑誌

Anthropological Science (ISSN:09187960)

巻号頁・発行日

vol.125, no.2, pp.45-51, 2017 (Released:2017-09-21)

参考文献数

58

被引用文献数

2

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The African primate fossil record is very poor between the mid-Middle and mid-Late Miocene. Nakali (~10–9.8 Ma) is one of the rare African localities that have yielded primate fossils from this period, including a new genus of great ape, Nakalipithecus nakayamai, and another large-bodied hominoid species. The Nakali primate fauna also includes small-bodied ‘apes’ and Old World monkeys (mostly colobines). In this article, we describe a new specimen of a small-bodied ‘ape’ discovered from Nakali, which is assigned to nyanzapithecines. Nyanzapithecines are characterized by their derived dental morphology, and the previously known nyanzapithecines range in chronological age between the Late Oligocene and early Middle Miocene (~25–13.7 Ma). The new nyanzapithecine specimen from Nakali is therefore the latest occurrence of this group in the African fossil record, extending its chronological range by almost 4 million years younger.

著者

YUTAKA KUNIMATSU YOSHIHIRO SAWADA TETSUYA SAKAI MOTOTAKA SANEYOSHI HIDEO NAKAYA AYUMI YAMAMOTO MASATO NAKATSUKASA

出版者

The Anthropological Society of Nippon

雑誌

Anthropological Science (ISSN:09187960)

巻号頁・発行日

pp.170126, (Released:2017-04-29)

被引用文献数

2

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The African primate fossil record is very poor between the mid-Middle and mid-Late Miocene. Nakali (~10–9.8 Ma) is one of the rare African localities that have yielded primate fossils from this period, including a new genus of great ape, Nakalipithecus nakayamai, and another large-bodied hominoid species. The Nakali primate fauna also includes small-bodied ‘apes’ and Old World monkeys (mostly colobines). In this article, we describe a new specimen of a small-bodied ‘ape’ discovered from Nakali, which is assigned to nyanzapithecines. Nyanzapithecines are characterized by their derived dental morphology, and the previously known nyanzapithecines range in chronological age between the Late Oligocene and early Middle Miocene (~25–13.7 Ma). The new nyanzapithecine specimen from Nakali is therefore the latest occurrence of this group in the African fossil record, extending its chronological range by almost 4 million years younger.

著者

Takehisa Tsubamoto Kunimatsu Yutaka Hideo Nakaya Tetsuya Sakai Mototaka Saneyoshi Emma Mbua Masato Nakatsukasa

出版者

The Geological Society of Japan

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.121, no.4, pp.153-159, 2015-04-15 (Released:2015-07-29)

参考文献数

20

被引用文献数

1 9

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New dental and astragalar specimens of a primitive hippopotamus, Kenyapotamus coryndonae (Mammalia, Cetartiodactyla, Hippopotamidae, Kenyapotaminae) from the lower Upper Miocene Nakali Formation at the Nakali locality, central Kenya, are described and illustrated. The new specimens increase the known morphological and size variations of the dentition and astragalus in this primitive hippopotamid species, which is important to understand the origin and early evolution of the Hippopotamidae.

著者

Yukihide Matsumoto Mototaka Saneyoshi

出版者

The Geological Society of Japan

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.116, no.1, pp.I-II, 2010-01-15 (Released:2013-02-23)

参考文献数

2

被引用文献数

1 1