Final answer:
Coprolites of known dinosaurs are mostly of ornithopods, which were herbivorous dinosaurs with bird-like hips. Some examples of ornithopods include Parasaurolophus and Triceratops.
Step-by-step explanation:
The coprolites of known dinosaurs are mostly of ornithopods. Ornithopods were a group of herbivorous dinosaurs that walked on two legs and had bird-like hips. Some examples of ornithopods include Parasaurolophus and Triceratops. Fossil evidence shows that they laid eggs and likely had extensive parental care.
The known coprolites (fossilized feces) of dinosaurs are mostly associated with sauropods, which were long-necked herbivorous dinosaurs. These immense creatures left behind copious evidence of their diets through the preservation of their feces in the fossil record. The vast size and herbivorous nature of sauropods make their coprolites more abundant and recognizable in comparison to other dinosaur groups.