Ovaloolithus tenuisus

† Ovaloolithus tenuisus is an oogenus from Late Cretaceous North America. These thin-shelled ellipsoidal eggs document nesting behavior of small-to-medium-sized dinosaurs in the Late Cretaceous of the western United States.

Diet & Feeding

Herbivore

Ovaloolithus tenuisus 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

Ovaloolithus tenuisus 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.