Answer:
Coprolites or Fossil ''poop'' is one method scientist (Palenontologist) like Karen employed to to discern what scientist eats.
Tryannosaurus Rex,(T.Rex) was the actual dinosaur that Karen understudied. This creature''s Coprolites dated about 65 million years ago, during the period of of Late Cretaceous. The T.Rex was a mammoth creature.With Coprolites of weight 17'' long, height 6'' and breadth of 15''. Consequently, Karen and colleagues concluded that, since T.Rex was the only huge carnivorous at the Late Cretaceous period, technically the Coprolites definitely belong to it.
Additionally, the fragments of bone found in the Coprolites was proof by Kreen to conclude that T.Rex crushed and chew his preys, and therefore must be a Carnivore. And the it fed on Triceratops because the bone fragments in the Coprolites was found in the skull of Triceratops.
Explanation: