Gateway to the Paleobiology Database
Einiosaurus procurvicornis Sampson 1994 (ceratopsid)

Reptilia - Neornithischia - Ceratopsidae

PaleoDB taxon number: 53954

Skull of Einiosaurus procurvicornis (MOR 456).

Synonym: Styracosaurus makeli Czerkas and Czerkas 1990 [replaced name] (taxon 113890)

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

Belongs to Einiosaurus according to P. Dodson et al. 2004

Sister taxa: none

Type specimens:

  • 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