Niobrarasaurus coleii

† Niobrarasaurus coleii is a Late Cretaceous nodosaurid ankylosaur from Kansas, USA. Found in marine sediments of the Western Interior Seaway, this ~6 m herbivore likely washed out to sea after death in Late Cretaceous North America.

Diet & Feeding

Herbivore

Niobrarasaurus coleii 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

Niobrarasaurus coleii 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.