Full reference: K. -Q. Gao and R. C. Fox. 1996. Taxonomy and evolution of Late Cretaceous lizards (Reptilia: Squamata) from western Canada. Bulletin of the Carnegie Museum of natural History 33:1-107
Sister taxa: none
Type specimen: UALVP 29789, a mandible (incomplete right dentary with six teeth and the broken bases/vacant alveoli for 16 others). Its type locality is Verdigris Coulee (UA-MR-6), which is in an Aquilan terrestrial sandstone/shale in the Upper Milk River Formation of Canada.
Ecology: ground dwelling insectivore