Illustration réalisée par Mark A. Klingler
(Carnegie Museum of Natural History)

Jean-Jacques JAEGER

Professor emeritus

Main research question

My research interest concerns the history and the evolution of mammals in South East Asia and the contribution of that province to the emergence of the extant group of mammals.

Topics of study

In this southeastern Asia framework, I specifically work on:

  • the emergence and evolution of anthropoid primates during the Paleogene;
  • the emergence and evolution of apes, notably that of the orang utan lineage;
  • the evolutionary dynamic of mammals in a paleoenvironmental and biochronologic perspective.


In that frame, I supervise the field works and excavations in the Pondaung Formation of Central Myanmar and participate to the field works and excavations organized by Yaowalak chaimanee in Thailand and Laos.


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).

Jaeger, J.-J. (2017). Asian Origin Theory. The International Encyclopedia of Primatology, John Wiley & Sons, Inc.

Licht, A., Van Cappelle, M., Abels, H. A., Ladant, J.-B., Trabucho-Alexandre, J., France-Lanord, Donnadieu, Y., Vandenberghe, J., Rigaudier, T., Lecuyer, C., Terry Jr, D., Adriaens, R., Boura, A., Guo, Z., Aung Naing Soe, Quade, J., Dupont-Nivet, G. and Jaeger, J.-J. (2014). Asian monsoons in a late Eocene greenhouse world. Nature, 513, 501-506

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

Chaimanee, Y., Chavasseau, O., Beard, K. C., Aung Aung Kyaw, Aung Naing Soe, Chit Sein, Lazzari, V., Marivaux, L., Marandat, B., Myat Swe, Rugbumrung, M., Thit Lwin, Valentin, X., Zin-Muang-Muang-Thein, Jaeger, J.-J. (2012). Late Middle Eocene primate from Myanmar and the initial anthropoid colonization of Africa. Proceedings of the National Academy of Sciences 109, 10293-10297.

Chaimanee, Y., Lebrun, R., Yamee, C., and Jaeger, J.-J. (2011). A new middle Miocene tarsier from Thailand and the reconstruction on its orbital morphology using geometric-morphometric method. Proceedings of the Royal Society B., 278, 1956-1963.

Jaeger, J.-J., Aung Naing Soe, Chavasseau, O., Coster, P., Emonet, E., Lebrun, R., Aye Maung, Aung Aung Khyaw, Hla Shwe, Soe Thura Tun, Kyaw Linn Oo, Rugbumrung, M., Bocherens, H., Benammi, M., Chaivanich, K., Tafforeau, P., Chaimanee, Y. (2011). First hominoid from the Late Miocene of the Irrawaddy Formation (Myanmar). PlosONE 6 (4): e17065. doi: 10.1371/journal.pone.0017065.

Jaeger, J.-J., C. K. Beard, Chaimanee, Y., Benammi, M., Coster, P., Salem, M., Bilal, A., Hlal, Osama A. O. A., Schuster, M., Duringer, P., Valentin, X., Marandat, B., Marivaux, L., Metais, E., Hammuda, O. Brunet, M. (2010). Late Middle Eocene of Libya yields earliest known radiation of African anthropoids. Nature, 467, 1095-1098

Jaeger J.-J., Marivaux L., Salem M., Bibal. A., Benammi M., Chaimanee Y., Duringer P., Marandat B., Metaias E., Schuster M., Valentin X., Brunet M. (2010) New rodent assemblages from the Eocene Dur At-Talah escarpment (Sahara of Central Libya): systematic, biochronologic and paleobiogeographic implications. Zoological Journal of the Linnean Society 160: 195-213.

Pushkina D., Bocherens H., Chaimanee Y., Jaeger J.-J. (2010) Stable carbon isotope reconstructions of diet and paleoenvironment from the late Middle Pleistocene Snake Cave in Northeastern Thailand. Naturwissenschaften 97:299-309.



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