Spheroolithus maiasauroides

† Spheroolithus maiasauroides is a Late Cretaceous ootaxon from Mongolia, closely resembling the egg type found at Maiasaura nesting sites in North America. Its occurrence in Mongolia suggests parallel nesting strategies in Asian and North American hadrosaurs.

Diet & Feeding

Herbivore

Spheroolithus maiasauroides 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

Spheroolithus maiasauroides 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.