although poorly known

saurópodos

y que caminaba sobre cuatro patas robustas y columnares

queenslandicus

in the province of Río Negro

Tenontosaurus tilletti Variant:Primed although poorly knownTenontosaurus 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