Its fossils were found in the Late Cretaceous-age North Horn Formation of Utah (United States).
This specimen was discovered at the "Lizard Locality" in the Manti National Forest, Emery County, Utah.
He ruled out all then-known orders of reptiles on anatomical ground except for Crocodilia (which had a more expansive definition at the time) and the nebulous thecodontia.
Gilmore regarded the specimen as an adult because the vertebrae lacked sutures for their neural arches, a sign of maturity.
In the text of this publication, it is mentioned that Kenneth Carpenter had observed "some faint resemblances" to the Morrison Formation goniopholidid genus Eutretauranosuchus.