1999 Fiscal Year Final Research Report Summary
Origins and Evolution of Hominoids in East Asia.
| Project/Area Number |
09041161
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| Research Category |
Grant-in-Aid for Scientific Research (A).
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
人類学(含生理人類学)
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
SHIGEHARA Nobuo Kyoto University, Primate Research Institute, Professor, 霊長類研究所, 教授 (20049208)
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| Co-Investigator(Kenkyū-buntansha) |
KUNIMATSU Yutaka Kyoto University, Primate Research Institute, Lecture, 霊長類研究所, 助手 (80243111)
TAKAI Masanaru Kyoto University, Primate Research Institute, Lecture, 霊長類研究所, 助手 (90252535)
SETOGUCHI Takeshi Kyoto University, Faculty of Science, Professor, 大学院・理学研究科, 教授 (20109086)
NAGAOKA Shinji Nagasaki University, Faculty of Education, Assistant Professor, 教育学部, 助教授 (80244028)
NAKAYA Hideo Kagawa University, Faculty of Engineering, Assistant Professor, 工学部, 助教授 (20180424)
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| Project Period (FY) |
1997 – 1999
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| Keywords | anthropoids / hominoids / evolution / Eocene / Miocene / Myanmar / Thailand |
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| Research Abstract |
The paleontological investigations have been carried out at four localities in several East Asian countries : the late Miocene of Yunnan Province in southern China, the lete middle Eocene of Pondaung area in central Myanmar, the middle to late Miocene of Ban Na Sai area in Northern Thailand, the early Cenozoic of Fuxing area of Liaoning Province in northeast China. As a result, several primate fossils were discovered in the Pondaung, Myanmar, and Ban Na Sai, Thailand. These fossils are now in the process of description.
In Pondaung area newmaxillary and dental specimens of Pondaungia and Amphipithecus, both ofwhich have been discovered at the beginning of this century and considered possible earliest anthropoids, were collected. Especially, the maxillary fragments of both taxa were discovered for the first time. Moreover, two new small primates were discovered : Bahinia and unnamed species. Both taxon are also regarded as anthropoid primates.
In Ba Na Sai area a possible hominoid isolated tooth was discovered from the middle Miocene sediment. The specimen is an isolated right upper molar, and might be an oldest hominoid fossil in East Asia. The detailed analysis of this tooth will provide new contribution to the study of hominoid evolution in East Asia.
The discoveries of these new primate fossils in Southeast Asia will throw light on the study of evolution of Tertiary primates in East Asia.
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