Iguanacolossus

† Iguanacolossus — an Early Cretaceous iguanodontian ornithopod from the Yellow Cat Member, Utah. Large herbivore (~9 m long, ~3,000 kg). 'Iguana colossus' was a massive member of the Cedar Mountain Formation fauna. One of the larger ornithopods from Early Cretaceous North America.

Diet & Feeding

Herbivore

Iguanacolossus 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

Iguanacolossus 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.