2013 Fiscal Year Final Research Report
Phyletic position and paleobiogeographic origin of an extinct mammalian order, Creodonta
| Project/Area Number |
23370044
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Kyoto University |
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Principal Investigator |
EGI Naoko 京都大学, 霊長類研究所, 助教 (80432334)
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| Co-Investigator(Kenkyū-buntansha) |
TSUBAMOTO Takehisa 岡山理科大学, 地球環境科学部, 研究員 (20522139)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 哺乳類 / 絶滅分類群 / 系統分類 / 生物地理 / 肉歯目 |
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| Research Abstract |
Phylogeny of extant mammals have been dramatically modified by the application of molecular genetics, and correlation of the new phylogeny and biogeography has been suggested; however, extinct mammals, such as Creodonta, are excluded from such discussion. We determined classification of hyaenodontid creodonts from the Paleogene of Asia and reviewed occurrences of each hyaenodontid lineages. The results suggested that there were several dispersal events between Asia and other continents, including immigration from Africa in the early Eocene and multiple immigration and/or emigration in mid-to-high latitude northern hemisphere in the Eocene and Oligocene. Morphological observations and paleobiogeographical evidences indicated differences between hyaenodontid creodonts and carnivorans, which has been treated as the sister group of creodonts.
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Research Products
(23 results)
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[Journal Article] Dental morphology of 'Pterodon sp.' (Mammalia; Hyaenodontidae) described from the Eocene Ergilin Dzo Formation2013
Author(s)
Tsubamoto, T., Tsogtbaatar, Kh., Chinzorig, Ts., Mainbayar, B., Egi, N., Mototaka Saneyoshi, M., Nishido, H
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Journal Title
Mongolia. The Bulletin of Research Institute of Natural Sciences
Volume: 39
Pages: 43-44
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[Journal Article] New specimens of Entelodon gobiensis (Mammalia; Artiodactyla; Entelodontidae) from the Eocene Ergilin Dzo Formation2013
Author(s)
Tsubamoto, T., Tsogtbaatar, Kh., Saneyoshi, M., Mainbayar, B., Watabe, M., Chinzorig, Ts., Khatanbaatar, P., Nishido, H
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Journal Title
Mongolia. The Bulletin of Research Institute of Natural Sciences, Okayama University of Science
Volume: 39
Pages: 37-41
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[Journal Article] Fossil evidence of a mesonychid mammal from the upper Eocene Ergilin Dzo Formation2012
Author(s)
Tsubamoto, T., Tsogtbaatar, Kh., Saneyoshi, M., Mainbayar, B., Watabe, M., Chinzorig, Ts., Suzuki, S., Khatanbaatar, P., Ishigaki, S., Barsbold, R
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Journal Title
Mongolia. Paleontological Research
Volume: 16 (2)
Pages: 171-174
DOI
Peer Reviewed
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[Journal Article] The function of the crown cementum of Teleolophus, an Eocene deperetellid perissodactyl2012
Author(s)
Tsubamoto, T., Tsogtbaatar, Kh., Watabe, M., Saneyoshi, M., Chinzorig, Ts
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Journal Title
Journal of Fossil Research
Volume: 44 (2)
Pages: 78-79
Peer Reviewed
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[Journal Article] A new specimen of Gobiopithecus khan (Mammalia; Pantolesta) from the Eocene Ergilin Dzo Formation2011
Author(s)
Tsubamoto, T., Tsogtbaatar, Kh., Saneyoshi, M., Mainbayar, B., Watabe, M., Chinzorig, Ts., Suzuki, S., Khatanbaatar, P., Ishigaki, S., Barsbold, R
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Journal Title
Mongolia. Journal of Fossil Research
Volume: 44 (1)
Pages: 20-23
Peer Reviewed
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[Journal Article] The oldest anthropoid primates in SE Asia : Evidence from LA-ICP-MS U-Pb zircon age in the Late Middle Eocene Pondaung Formation
Author(s)
Khin Zaw, Meffre, S., Takai, M., Suzuki, H., Burrett, C., Thaung Htike, Zin Maung Maung Thein, Tsubamoto, T., Egi, N., Maung Maung
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Journal Title
Myanmar. Gondwana Research
Volume: (in press)
DOI
Peer Reviewed
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[Presentation] A Paleogene mammalian fauna from the Iwaki Formation, Japan : its implication to the age and paleobiogeography. Program and Abstracts2013
Author(s)
Tsubamoto, T., Koda, Y., Hasegawa, Y., Nabana, S., Tomida, Y
Organizer
73rd Annual Meeting, Society of Vertebrate Paleontology
Place of Presentation
Los Angeles, California, USA
Year and Date
20131030-1102
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[Presentation] Nimravids and stenoplesictids (Mammalia, Carnivora) from the upper Eocene of Mongolia and its paleobiogeographic significances. Program and Abstracts2013
Author(s)
Egi, N., Tsubamoto, T., Watabe, M., Saneyoshi, M., Tsogtbaatar, Kh
Organizer
73rd Annual Meeting, Society of Vertebrate Paleontology
Place of Presentation
Los Angeles, California, USA
Year and Date
20131030-1102
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