New hyaenodonta (Mammalia) from the middle Eocene of Myanmar |
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Affiliation: | 1. IPHEP: Institut de paléoprimatologie et de paléontologie humaine, évolution et paléoenvironnements, UMR CNRS 7262, Université de Poitiers, 6, rue Michel-Brunet, 86073 Poitiers cedex 9, France;2. Royal Belgian Institute of Natural Sciences (RBINS), Operational Directorate Earth and History of Life, 29, rue Vautier, 1000 Bruxelles, Belgium;3. Department of Higher Education Ministry of Education, Naypyitaw, Myanmar;4. Department of Geology, West Yangon University, 11393 Yangon, Myanmar |
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Abstract: | The middle Eocene Pondaung Formation in Myanmar has yielded a rich mammalian fauna including several Primate taxa. Hyaenodonta are known by the genera Kyawdawia, Yarshea, Orienspterodon, and two other indeterminate taxa. We describe here new material of Kyawdawia, including some morphological details, a new species of the hypercarnivorous genus Propterodon and an indeterminate species, different from those described earlier in Myanmar, and characterized by a reduction of m3 and would belong to a third lineage with the same evolutionary trend as Galecyon and the Limnocyoninae. The hyainailourines (Orienspterodon) and hyaenodontines (Propterodon) are recorded for the first time in Southeast Asia and these subfamilies appeared in quasi the same time in Europe illustrating probably a profound change in the carnivorous fauna among Laurasia. |
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Keywords: | Hyaenodonta Hyainailouridae Hyaenodontidae Pondaung Formation Nova species Hyaenodonta Hyainailouridae Hyaenodontidae Formation de Pondaung Nova species |
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