With its disappearance

Estos animales son parte de la familia Protocetidae

Tyrannosaurus rex stood upright on its hind legs and had a long

all of them small

with a dense bone structure and robust limbs

Zuul crurivastator Monolophosaurus With its disappearanceZuul crurivastator is a herbivorous ankylosaurine dinosaur from the Campanian stage of the Late Cretaceous (approximately 76. 275. 2 million years ago) that has provided valuable morphological and paleoecological data thanks to an exceptionally complete specimen recently described. It was found in the Judith River Formation in northern Montana (USA), and its extraordinary preservation includes a complete skull, caudal club, osteoderms in situ, keratin