My research program applies a phylogenetic perspective to temporal issues in paleontology and evolutionary biology. I am very interested in the ways phylogeny can illuminate patterns among both living and extinct organisms, from molecular estimates of divergence timing to patterns of fossil diversity over geological time. Most of my work explores the phylogeny and historical biogeography of archosaurs, especially crocodylians and theropod dinosaurs (Figure 1). I am also involved with various projects studying the archosaur skull with high-resolution computed tomography (Figure 2).
 
 

Figure 1

Figure 2