Assistant professor
Deputy director of the Unit

Main research question

My research explores the evolution of anthropoid- and hominoid-bearing faunas in the Cenozoic of Southeast Asia.

Topics of study

I am particularly interested in the evolution of large mammals, including that of anthropoid primates and hominoids.


It is within this framework that I participate in the field excavations of the Paleontological Mission-French-Burma in the Eocene (Pondaung Formation) and the Miocene (Irrawaddy Formation).

Other responsibilities

  • Directeur adjoint de l’Unité de Formation Géosciences
    Membre de la commission de spécialistes Section 35/36
    Responsable de la collection d’anatomie comparée de PALEVOPRIM dédiée à l’enseignement, la recherche et la diffusion vers le grand public.


Iconic publications

Jean-Jacques Jaeger, Olivier Chavasseau, Vincent Lazzari, Aung Naing Soe, Chit Sein, Anne Le Maître, Hla Shwe & Yaowalak Chaimanee – New Eocene primate from Myanmar shares dental characters with African Eocene crown anthropoids – Nature Communications volume 10, Article number: 3531 (2019).

Chaimanee, Y., Chavasseau, O., Lazzari, V., Euriat, A., Jaeger, J.-J., 2013. A new Late Eocene primate from Krabi basin (Thailand) and the diversity of Paleogene anthropoids in Southeast Asia. Proceedings of the Royal Society B-Biological Sciences 280, 20132268.

Chaimanee Y, Chavasseau O, Beard KC, Aung Kyaw A, Naing Soe A, et al. 2012. Late Middle Eocene primate from Myanmar and the initial anthropoid colonization of Africa. Proceedings of the National Academy of Sciences, USA 109: 10293-10297.

Chavasseau, O., Aung Khyaw, A., Chaimanee, Y., Coster, P., Emonet, E.-G., Naing Soe, A., Rugbumrung, M., Thura Tun, S., Jaeger, J.-J., 2013. Advances in the biostratigraphy of the Irrawaddy Formation (Myanmar). In: Wang, X., Flynn, L.J., Fortelius, M. (Eds.), Neogene Terrestrial Mammalian Biostratigraphy and Chronology of Asia. Columbia University Press, New York, pp. 461-474.

Jaeger J-J, Naing Soe A, Chavasseau O, Coster P, Emonet E-G, et al. (2011) First hominoid from the Late Miocene of the Irrawaddy Formation (Myanmar). PLoS ONE 6: e17065.

Chavasseau, O., Y. Chaimanee, P. Coster, E.-G. Emonet, A. Naing Soe, A. Aung Kyaw, A. Maung, M. Rugbumrung, H. Shwe, and J.-J. Jaeger. 2010. First record of a chalicothere from the Miocene of Myanmar. Acta Palaeontologica Polonica 55(1):13-22.

Chavasseau, O., Y. Chaimanee, C. Yamee, P. Tian, M. Rukbumrung, B. Marandat, and J.-J. Jaeger. 2009. New Proboscideans (Mammalia) from the middle Miocene of Thailand. Zoological Journal of the Linnean Society 155:703-721.

Chaimanee, Y., Yamee, C., Tian, P., Chavasseau, O., & Jaeger, J. J. (2008). First middle Miocene sivaladapid primate from Thailand. Journal of human evolution, 54(3), 434-443.

Chavasseau, O., Chaimanee, Y., Thura Tun, S., Soe, A. N., Barry, J. C., Marandat, B., Sudre, J., Marivaux, L., Ducrocq, S. and Jaeger, J.-J. (2006). Chaungtha, a new Middle Miocene mammal locality from the Irrawaddy Formation, Myanmar. Journal of Asian Earth Sciences 28(4-6): 354-362.



Tél. : +33 (0)5 49 45 37 53

Guylaine REYNAUD

Tél. : +33 (0)5 49 45 37 26

Fax : +33.(0)5 49 45 40 17


Université de Poitiers – UFR SFA


Bât B35 – TSA 51106

6 rue Michel Brunet

86073 POITIERS Cedex 9