Synonym: Styracosaurus makeli Czerkas and Czerkas 1990 [replaced name]
Full reference: S. D. Sampson. 1994. Two new horned dinosaurs (Ornithischia: Ceratopsidae) from the Upper Cretaceous Two Medicine Formation, Montana, USA. Journal of Vertebrate Paleontology 14(3, suppl.):44A
See also Currie et al. 2008, Farke 2011, Farke et al. 2011, Hieronymus et al. 2009, Horner et al. 2001, Longrich 2010, Lund et al. 2016, McDonald and Horner 2010, Rogers 1997, Ryan et al. 2007, Sampson 1994, Sampson 1995 and Trexler 2001
Sister taxa: none
- Einiosaurus procurvicornis: MOR 456. Its type locality is Canyon Bonebed, MOR TM-046, which is in a Campanian lacustrine - small siltstone in the Two Medicine Formation of Montana.
- Styracosaurus makeli:
Ecology: ground dwelling herbivore
• Cretaceous of United States (3: Montana collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.