Spheruprismatoolithus

† Spheruprismatoolithus is a Late Cretaceous fossil egg ootaxon from the United States, combining features of both spheroolithid and prismatoolithid egg types. The hybrid microstructure may reflect a distinct dinosaurian egg-layer.

Diet & Feeding

Herbivore

Spheruprismatoolithus 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

Spheruprismatoolithus 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.