Edmontonia longiceps

† Edmontonia longiceps is a nodosaurid ankylosaur from the Late Cretaceous (Maastrichtian) Horseshoe Canyon and Lance Formations of the United States and Canada. Its species name longiceps ('long head') reflects its relatively elongated skull compared to E. rugosidens. Approximately 6 m long, it was a low-browsing herbivore protected by extensive body armour and large shoulder spikes. It represents the stratigraphically latest and among the largest of the Edmontonia species.