Full reference: E. L. Nicholls, D. B. Brinkman, and X.-C. Wu. 1998. A new archosaur from the Upper Triassic Pardonet Formation of British Columbia. Canadian Journal of Earth Sciences 35:1134-1142
Sister taxa: none
Type specimen: RTMP 94.382.3. Its type locality is Locality D, headwaters of Chicken Creek, which is in a Norian deep subtidal shelf limestone in the Pardonet Formation of Canada.