They were quite large animals for their time

incluyendo un cráneo

con pies anchos y dedos con garras curvas

estabilizada por tendones osificados que limitaban su flexión

específicamente en la época del Triásico Inferior

Aquilops americanus Arthropleura They were quite large animalsOsteological description and phylogenetic considerations of Aquilops americanus (Dinosauria, Ornithischia, Neoceratopsia) from the Early Cretaceous of North America Aquilops americanus is a basal species of neoceratopsian that represents one of the oldest and most primitive records of this clade in North America. Its discovery, based on an exceptionally preserved partial skull from the Cloverly Formation (Early Cretaceous, AptianAlbian) in Montana,