Description
Edmontosaurus annectens
Cretaceous
Lance Creek Formation, Niobrara County, Wyoming
A presentation of twelve consecutive caudal (tail) vertebrae of the duckbilled dinosaur, Edmontosaurus annectens, displays both the dorsal spines and chevrons. Edmontosaurs, large, herbivorous dinosaurs that ranged in herds throughout North America during the Cretaceous, have been called the Cattle of the Cretaceous by...