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Scolosaurus Scolosaurus

"pointed stake"

You 1.8 m (5.9 ft) tall
Scolosaurus 5.6 m (18.4 ft) long
4 people holding hands
Length
5.6 m (18.4 ft)
Period
Late Cretaceous (76.5–74 Mya)
Place
United States · Canada · Alberta, Canada · Montana, USA
Food
Herbivore
Clade
Ankylosauridae Dinosauria Ornithischia Thyreophora Ankylosauria

Scolosaurus is an extinct genus of ankylosaurid dinosaurs within the subfamily Ankylosaurinae. It is known from the lower levels of the Dinosaur Park Formation and upper levels of the Oldman Formation in the Late Cretaceous (latest middle Campanian stage, about 76.5 Ma ago) of Alberta, Canada. The genus contains two species, S. cutleri and S. thronus. The type species, S. cutleri, measured up to 5.6 m in length and 2.2 MT in body mass.

The genus was once believed to represent a synonym of the coeval Euoplocephalus, but this is no longer thought to be the case, and Scolosaurus is now accepted as a valid taxon. Some researchers have considered the genus Oohkotokia, known from the also Campanian-aged Two Medicine Formation of Montana, United States, to be synonymous with Scolosaurus.

What we know

  • Named by Nopcsa, 1928.
  • Body length estimated at about 5.6 m.
  • Fossils found in United States and Canada.