Dinosaur coprolite collected from Cretaceous sediments in North West USA. Coprolites are the fossilised feces of ancient organisms. These dinosaur droppings were deposited 70 to 145 Mya just before dinosaurs became extinct at the end of the Cretaceous period. Coprolites are classed as trace fossils; they are particularly important to science because they often provide us with information regarding the diet of ancient organisms which in turn helps us interpret their mode of life. The original organic droppings have been replaced by agate stone which has preserved and helped retain the shape of the coprolites. Each coprolite is supplied in a 2" x 2" white card tray with an information label. Ideal for serious fossil collectors or within educational establishments.