Synonyms: Hanssuessia Sullivan 2003, Hansuessia Sullivan 2003, Ornatotholus Galton and Sues 1983
Full reference: L. M. Lambe. 1902. New genera and species from the Belly River Series (mid-Cretaceous). Geological Survey of Canada Contributions to Canadian Palaeontology 3(2):25-81
Parent taxon: Eupachycephalosauria according to P.-E. Dieudonné et al. 2020
See also Butler et al. 2008, Carroll 1988, Charig 1967, Clemens 1986, Dodson 1983, Dong 1978, Eberth 1997, Eberth et al. 2001, Galton 1974, Gilmore 1924, Goodwin 1990, Goodwin et al. 2004, Goodwin and Evans 2016, Hatcher et al. 1907, Hay 1930, Hennig 1915, Huene 1909, Huene 1927, Jasinski 2015, Jasinski and Sullivan 2011, Kuhn 1964, Lambe 1902, Lambe 1905, Lambe 1911, Lambe 1918, Longrich 2008, Longrich et al. 2010, Maryanska 1990, Maryanska et al. 2004, Maryańska and Osmólska 1974, Maryanska and Osmólska 1985, Molnar 1980, Nopcsa 1915, Nopcsa 1923, Nopcsa 1928, Nopcsa 1928, Olshevsky and Ford 1994, Parsch 1963, Rage 1981, Romer 1956, Romer 1966, Russell 1984, Russell and Chamney 1967, Ryan and Evans 2005, Schott et al. 2009, Sereno 1986, Sereno 1997, Sereno 1998, Sereno 1999, Sereno 2000, Sternberg 1945, Sues 1997, Sues and Galton 1982, Sues and Galton 1987, Sullivan 2003, Sullivan 2003, Sullivan 2006, Sullivan and Lucas 2006, Swinton 1970, Tatarinov 1964, Thulborn 1974, Wall and Galton 1979, Williamson and Carr 2003, Williamson and Carr 2006, Wolberg 1980, Woodruff et al. 2021 and Zhao 1983
Sister taxa: Homalocephale, Pachycephalosaurus, Prenocephale
Subtaxa: Stegoceras novomexicanum Stegoceras validum
Ecology: ground dwelling herbivore
Distribution:
• Cretaceous of Canada (20: Alberta, Saskatchewan collections), United States (21: Montana, New Mexico)
Total: 41 collections including 42 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.