My primary area of expertise is evolutionary paleobiology, archosaurian reptiles (crocodiles, non-avian and avian dinosaurs (birds), and pterosaurs) in particular. I also have ancillary interests in the evolution of terrestrial oxudercine gobies (mudskippers). The major focus of my research is the form, function, performance, and development of the musculo-skeletal system from which inferences on life history, physiology, biomechanics, and ecology are drawn. This provides new and novel insights into the most important radiations in earth history (e.g. the 85-million year domination of predatory niches at the water-land interface by crocodilians, the evolution of gigantism and diversification of dinosaurs, the evolution of avian flight, the evolution of dental occlusion and diversification in herbivorous reptiles, and the vertebrate conquest of land).