Diplodocus

One of the largest dinosaurs ever to be discovered and the longest of all the sauropods, but it was still lightweight compared 
to some.Its length was boosted by an extraordinary whip-like tail.They lived in herds of 20 or more, which contained only adults
or sub-adults.IT had large heavy scales on its back and spines running the length of its entire body.Such a large dinosaur may appeared as though it had nothing to fear, but it did.The Tyrannosaurus and the Allosaurus would attack this giant herds quite usually attack
these herds often taking the young, the weak and the wounded.
EVIDENCE:based on based on 5 skeletons without skulls, 2 with skulls and several skulls with isolated elements of the skeleton.
Four species have been identified from Wyoming and Colorado Morris Formation.
Category:Dinosaurs