In the years to come, additional material would be recovered at the Scabby Butte locality of the St. Mary River Formation near Lethbridge, Alberta, from terrestrial sediments considered to be between 74 and 66 million years old.
Negli anni a venire, sono stati portati alla luce altri fossili, recuperati presso la frazione Rognosa Butte del St. Mary River Formation vicino a Lethbridge, in Alberta, da sedimenti terrestri datati tra i 74 e i 66 milioni di anni.