Profile photo of Dr. Timothy Gaudin
Dr. Timothy Gaudin
UC Foundation Professor; Senior Associate Department Head
Biology, Geology and Environmental Science
Ph.D. - University of Chicago
  227A Holt

Research Interests

My primary research interests are in the systematics and morphological evolution of edentate mammals (including anteaters, sloths, armadillos, pangolins and related fossil forms). In addition, I am interested in the biodiversity and biogeography of living mammals in southeastern Tennessee. I am also working on a long-term project involving the recovery and analysis of Late Pleistocene vertebrate faunas from Lookout Mountain, TN, in order to better understand the historical biodiversity, biogeography, and paleoecology of southeastern Tennessee vertebrates.

Grants/Projects Since 2009

2006-2011 National Science Foundation, ATOL grant, Collaborative Research. Project: “Resolving Mammalian Phylogeny with Genomic and Morphological Approaches.” (Co-PI, with PI Dr. Zhexi Luo and Co-PI Dr. John Wible of Carnegie Museum of Natural History).

Publications Since 2009

Gaudin, T.J., G. DeIuliis, N. Toledo, and F. Pujos. 2015. The basicranium and orbital region of the early Miocene Eucholoeops ingens Ameghino, 1887 (Xenarthra, Pilosa, Megalonychidae). Ameghiniana 52: 226-240. 

Gaudin, T.J., and D.A. Croft. 2015. Paleogene Xenarthra and the evolution of South American mammals.  Journal of Mammalogy, special feature  96(4): 622-634.

Lyon, L. M., C. Powell, H. G. McDonald, and T. J. Gaudin. 2015. Premaxillae of the extinct megalonychid sloths Acratocnus, Neocnus, and Megalonyx, and their phylogenetic implications (Mammalia, Xenarthra). Journal of Mammalian Evolution. DOI 10.1007/s10914-015-9308-7

O’Leary, M. A., J. I. Bloch, J. J. Flynn, T. J. Gaudin, et al. 2013. Technical Comment: Response to comment on “The placental mammal ancestor and the post-KPg radiation of placentals.” Science 341: 613. 

McDonald, H.G., A. Rincón, and T.J. Gaudin. 2013. A new genus of megalonychid sloth (Mammalia, Xenarthra) from the late Pleistocene of Sierra de Perijá, Zulia State, Venezuela. Journal of Vertebrate Paleontology 33(5): 1226-1238.

O'Leary, M. A., J. I. Bloch, J. J. Flynn, T. J. Gaudin, A. Giallombardo, N. P. Giannini, S. L. Goldberg, B. P. Kraatz, Z. X. Luo, J. Meng, X. Ni, M. J. Novacek, F. A. Perini, Z. Randall, G. W. Rougier, E. J. Sargis, M. T. Silcox, N. B. Simmons, M. Spaulding, P. M. Velazco, M. Weksler, J. R. Wible, and A. L. Cirranello. 2013. The placental mammal ancestor and the post-KPg radiation of placentals. Science 339: 662-667. DOI: 10.1126/science.1229237.

Pujos, F., T.J. Gaudin, G. De Iuliis, and C. Cartelle. 2012. Recent advances on variability, morpho-functional adaptations, dental terminology, and evolution of sloths. Journal of Mammalian Evolution 19(3): 159-169.

Babot, J., D. A. García-López, and T. J. Gaudin. 2012. The most ancient xenarthran petrosal: morphology and evolutionary significance.  Journal of Vertebrate Paleontology 32(5): 1186-1197.

Eichler, S. E. and T. J. Gaudin. 2011. New records of the nine-banded armadillo, Dasypus novemcinctus (Mammalia, Xenarthra, Dasypodidae), in southeast Tennessee, and their implications. Edentata 12: 7-13.

Giannini, N.P., P. Gaudioso, D. A. Flores, and T. J. Gaudin. 2011. A possible function for an enigmatic synapomorphy of Didelphis. Mammalian Biology 76: 512-514.

Gaudin, T. J. 2011. On the osteology of the auditory region and orbital wall in the extinct West Indian sloth genus Neocnus (Megalonychidae, Xenarthra, Placentalia). Annals of the Carnegie Museum of Natural History 80(1): 5-28.

Gaudin, T. J., A. N. Miller, J. L. Bramblett and T. P. Wilson. 2011. Holocene and Late Pleistocene bat fossils (Mammalia: Chiroptera) from Hamilton County, TN, and their ecological implications. Southeastern Naturalist 10(4): 609-628.

DeIuliis, G., T.J. Gaudin, and M.P. Vicars. 2011. A new genus and species of nothrotheriid sloth (Xenarthra, Tardigrada, Nothrotheriidae) from the late Miocene (Huayquerian) of Peru. Palaeontology 54(1): 171-205.

Gaudin, T. J., R. J. Emry and J. R. Wible. 2009. The phylogeny of living and extinct pangolins (Mammalia, Pholidota) and associated taxa: a morphology based analysis. Journal of Mammalian Evolution 16(4): 235-305.



Gaudin, T.J. and F. Pujos. 2012. Form and Function in the Xenarthra – Symposium Proceedings Volume.  Journal of Mammalian Evolution  19(3):155-234.

Carrano, M. T., Gaudin, T. J., Blob, R. W. & Wible, J. R. (eds.). 2006. Amniote Paleobiology: Perspectives on the Evolution of Mammals, Birds, and Reptiles. University of Chicago Press, Chicago, IL, 547 pp.


Additional Information

Editorial Board, Journal of Mammalian Evolution