Dinosaur: Triceratops horridus
| Length*: | 8.5 m | 27.9 ft |
| Weight*: | 8.3 tons | 18,298 lb |
ESR: 4 / 4 (estimated size reliability)
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Details
Status: valid
Autor: Marsh
Year: 1889
Area: North America
Country: USA, Canada
Region: Wyoming, Montana, South Dakota, North Dakota, Colorado, Saskatchewan, Alberta
Formation: Lance, Laramie, Hell Creek, Denver, Frenchman, Scollard, Evanston
Other
Material: At least several dozen individuals.
References: Ostrom, J. H. & Wellnhofer, P. (1986) "The Munich specimen of Triceratops with a revision of the genus".Scannella, John B.; Fowler, Denver W.; Goodwin, Mark B.; Horner, John R. (2014). "Evolutionary trends in Triceratops from the Hell Creek Formation, Montana".Ryan et al. (2010). New Perspectives on Horned Dinosaurs.Weishampel, D. B., Dodson, P., Osmólska, H., & Hilton, Richard P. (2004). The Dinosauria.
