Stellasaurus ancellae

† Stellasaurus ancellae is a Late Cretaceous centrosaurine ceratopsian from the Judith River Formation of Montana, USA. This horned dinosaur featured a distinctive star-shaped nasal boss, differentiating it from other North American centrosaurines.

Diet & Feeding

Herbivore

Stellasaurus ancellae 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

Stellasaurus ancellae 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.