Paleobiology of the late Cenozoic amphibians, reptiles, and mammals. Current projects
focus on late Pleistocene extinctions, biogeography, cave paleontology, paleoecology
and systematics.
OTHER AFFILIATIONS
Executive Director, Don Sundquist Center of Excellence in Paleontology (ETSU); Adjunct
professor Department of Biological Sciences (ETSU); Research Associate, Museo de la
Plata, Argentina; Society of Vertebrate Paleontology; National Speleological Society;
Southeastern Cave Conservancy; Tennessee Cave Survey; Tennessee Herpetological Society.
