Edmontosaurus regalis

† Edmontosaurus regalis, the 'royal Edmonton lizard,' is a large saurolophine hadrosaur from the Campanian Horseshoe Canyon Formation of Alberta, Canada. Up to 12 m long and 4 tonnes, it co-existed with tyrannosaur Albertosaurus in the high-latitude river delta environments of northern Laramidia. A crest of soft tissue has been proposed above its head. Its dental batteries of hundreds of teeth processed vast quantities of tough plant material, making it one of the most specialised herbivores of the Cretaceous.

Diet & Feeding

Herbivore

Edmontosaurus regalis was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Edmontosaurus regalis lived during the Cretaceous Late period of the Mesozoic Era, approximately 100.5 to 66.0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.