Las mandíbulas presentaban una curvatura hacia arriba

Diictodon feliceps and other dicynodonts became extinct

in what is now the western United States and Canada

Longitud hocico-cola 142 mm

approximately 125 to 100 million years ago

Triceratops diorama Hell Creek Nyctosaurus Las mandíbulas presentaban una curvaturaThe diorama depicts a vibrant scene from the Hell Creek Formation, approximately 66 million years ago, where a Triceratops dominates the landscape with its imposing size. Its scaly skin displays a camouflage pattern between brown and greenish tones, and its enormous skull with three horns and a large bony frill casts a shadow on the ground. Its robust legs sink slightly into the wet mud as it strides steadily near the water. Nearby, a