Bistahieversor sealeyi

† Bistahieversor sealeyi was a Late Cretaceous tyrannosaurid theropod from the Kirtlington Formation of New Mexico, United States. Approximately 9 m long, this apex carnivore possessed a distinctive skull with many openings reducing weight. An exceptionally complete specimen includes a skull revealing an unusual array of oral sensory features, contributing to understanding tyrannosaur sensory biology.

Diet & Feeding

Carnivore

Bistahieversor sealeyi was a meat-eating predator. Carnivorous dinosaurs were active hunters or scavengers, equipped with sharp teeth and claws for catching and consuming prey. They occupied the top of the food chain in their ecosystems.

Time Period

Cretaceous Late Mesozoic Era

Bistahieversor sealeyi 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.