Tenontosaurus tilletti Variant:Primed con una antigüedad aproximada de

con una antigüedad aproximada de 95 millones de años

which was made up of tall structures of bone and skin on its upper back

pelvis and shoulder girdle adapted to support a large-mass animal

Durante mucho tiempo

Utahceratops gettyi

Tenontosaurus tilletti Variant:Primed con una antigüedad aproximada deTenontosaurus tilletti is a herbivorous ornithischian dinosaur from the Early Cretaceous, dated primarily between 115 and 108 million years ago (Aptianearly Albian), belonging to the Iguanodontia group and considered a relatively basal form within Ornithopoda. Its fossil remains have been found mainly in the Cloverly and Antlers formations of the United States, especially in the states of Montana, Wyoming, Oklahoma, and Texas, making it one of the