Phylogenetic systematics of crotaphytid lizards (Reptilia: Iguania: Crotaphytidae)Published in Bulletin of Carnegie Museum of Natural History, in 1996, in volume 32, pages 1-143Taxonomy and evolution of Late Cretaceous lizards (Reptilia: Squamata) from Western CanadaPublished in Bulletin of Carnegie Museum of Natural History, in 1996, in volume 33, pages 1-107
Taxonomy and evolution of Late Cretaceous lizards (Reptilia: Squamata) from Western CanadaPublished in Bulletin of Carnegie Museum of Natural History, in 1996, in volume 33, pages 1-107