It is good to see the mixed nature of these huge herds been confirmed so powerfully in their sudden death. I suspect that the Therapods acted as the lions and simply followed these herds as they grazed. It is still a dramatic picture caught for an instant of time.
The size of this bone-yard is huge and we are getting multiple specimens which is often as important as any single specimen. Here we can make educated guesses regarding relative species densities even with some level comfort.
Alberta has become a treasure house of fossils that continues to surprise and impress..
Massive dinosaur boneyard gives up its secrets