which lived during the Miocene

such as large marine reptiles and sharks

and it is thought that it may have evolved in this way to compete with each other

permitiendo a los científicos estudiar y comprender mejor la evolución de los animales a lo largo de la historia de la Tierra

They were characterized by their body armor and a club-shaped tail

Allosaurus fragilis Tylosaurus which lived during the MioceneAllosaurus (A. fragilis, 'Different lizard') was the most common predatory theropod of the Kimmeridgian and Tithionian Age of the Upper Jurassic and the most dangerous as well. The Allosaurus had a large and robust head with serrated, sharp and curved teeth of between 5 10 cm, which allowed it to tear the flesh of its prey. It also had muscular arms with three fingers with claws up to 15 cm long, which helped it hold onto its prey. Its tail was long