Mantellisaurus

† Navajoceratops sullivani was a centrosaurine ceratopsid from the Late Cretaceous Kirtland Formation of New Mexico. An early member of its lineage, it inhabited the subtropical coastal ecosystems of southwestern North America approximately 75 million years ago.

Diet & Feeding

Herbivore

Mantellisaurus 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 Early Mesozoic Era

Mantellisaurus lived during the Cretaceous Early period of the Mesozoic Era, approximately 145.0 to 100.5 million years ago.

The Cretaceous saw continued dinosaur evolution with the rise of ornithopods and early ceratopsians. Flowering plants first appeared and began to transform terrestrial ecosystems. Spinosaurus and other large theropods lived during this time.