conocido principalmente por restos procedentes de la provincia de Shandong

a Gorgosaurus libratus

Length 85mm

but a complex process of reduction

una región que ha proporcionado abundante evidencia sobre la transición entre reptiles mamiferoides y los primeros mamíferos

Zuniceratops christopheri Variante:Imprimado conocido principalmente por restos procedentesZuniceratops christopheri was a ceratopsian dinosaur from the Late Cretaceous of North America, known from fossil remains recovered from the Moreno Hill Formation in western New Mexico, United States. Formally described by Douglas Wolfe and James Kirkland in 1998, this taxon occupies a particularly important position in the evolution of horned dinosaurs, as it represents a transitional form between more primitive neoceratopsians and the more derived