Pachyrhinosaurus lakustai

Age: Upper Cretaceous (73.5-72.5 Ma)
Length: up to 6 metres
Weight: up to 2 tons
Taxonomy: Dinosauria > Ornithischia > Ceratopsia > Centrosaurinae
Diet: herbivorous
Locality: Horseshoe Canyon and Bearpaw Formations, Alberta (Canada) and Alaska (USA); the related species Pachyrhinosaurus canadensis is to be found only in Canada.