Barnum Brown
"Hanssuesia" is based on a skull dome originally named "Troodon sternbergi" by Barnum Brown and Erich Maren Schlaikjer in 1943. The specific name honoured Charles Mortram Sternberg who found the dome in 1928 near Steveville in south Alberta. In 1945, it was transferred to "Stegoceras" by C.M. Sternberg himself, as a "Stegoceras sternbergi".