Mikko's Phylogeny Archive Back to Pachycephalosauria   Taxonomic history of the genus Hanssuessia Sullivan, 2003

After Sullivan, 2003

    †Hanssuessia Sullivan, 2003
        †Troodon Leidy, 1856; Brown & Schlaikjer, 1943 (in partim)
        †Stegoceras Lambe, 1902; Sternber, 1945 (in partim)
        †Stegoceras Lambe; Wall & Galton, 1979
        †Stegoceras Lambe; Sues & Galton, 1979 (in partim)
        †Gravitholus Wall & Galton, 1979
        †Stegoceras Lambe; Marya´nska, 1990
        †Gravitholus Sues & Galton; Sullivan, 2000
        †Hanssuessia Sullivan, 2003

    †Hanssuessia sternbergi (Brown & Schlaikjer, 1943); Sullivan, 2003
        †Troodon sternbergi Brown & Schlaikjer, 1943
        †Stegoceras sternbergi (Brown & Schlaikjer, 1943) Sternberg, 1945
        †Stegoceras validus Lambe; Wall & Galton, 1979
        †Gravitholus sternbergi (Brown & Schlaikjer); Wall, & Galton, 1979
        †Stegoceras validum (Lambe); Sues & Galton, 1987 (in partim)
        †Stegoceras validum (Lambe); Marya´nska, 1990 (in partim)
        †Gravitholus sternbergi (Brown & Schlaikjer); Sullivan, 2000
        †Hanssuessia sternbergi (Brown & Schlaikjer); Sullivan, 2003

Reference(s):

Marya´nska, T., 1990: Pachycephalosauria. 564-577
in Weishampel, D. B., Dodson, P., & Osmólska, H. (eds.), 1990: The Dinosauria.
–University of California Press, Berkley, Los Angeles, Oxford, 1990 xvi-733

Sullivan, R. M., 2003: Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauria).
–Journal of Vertebrate Paleontology: Vol. 23, #1, pp. 181-207