Dinosaur: Tyrannosaurus rex
| Length*: | 12.6 m | 41.3 ft |
| Weight*: | 11 tons | 24,251 lb |
| Speed: | 23 km/h | 14 mph |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Details
Status: valid
Autor: Osborn
Year: 1905
Area: North America
Country: USA, Canada, Mexico ?
Region: Montana, North Dakota, South Dakota, Wyoming, Colorado, Texas ?, Utah ?, New Mexico ?, Alberta, Saskatchewan
Formation: Hell Creek, Lance, Ferris, Denver, Frenchman, Willow Creek, Scollard, Laramie, Arapahoe, McRae ?, North Horn ?, Javelina ?, Livingston ?, Lomas Coloradas ?
Other
Material: At least more than 60 individuals (include skulls and almost complete skeletons).
References: Paul GS, Persons WS, Van Raalte J (2022). "The Tyrant Lizard King, Queen and Emperor: Multiple Lines of Morphological and Stratigraphic Evidence Support Subtle Evolution and Probable Speciation Within the North American Genus Tyrannosaurus".
