Cimolopteryx rara

A Late Cretaceous bird from North America, Cimolopteryx rara ('rare slender wing') is known from isolated tarsometatarsal elements from the Lance Formation of Wyoming. As a cimolopterygid bird, it was part of the diverse avian assemblage that survived alongside Triceratops and Tyrannosaurus in the final Cretaceous ecosystems of Laramidia.

Diet & Feeding

Carnivore

Cimolopteryx rara 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

Cimolopteryx rara 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.