Allosaurus fragilis mesozoico Extinción: El Elasmotherium sibiricum se

Extinción: El Elasmotherium sibiricum se extinguió al final del Pleistoceno

The most notable feature of Nanuqsaurus is its skull

although some fossil specimens suggest that it could have been even larger

the Mercuriceratops gemini was a relatively small dinosaur compared to other ceratopsians

Allosaurus fragilis mesozoico Extinción: El Elasmotherium sibiricum seAllosaurus (A. fragilis, `Different Lizard) was the most common predatory theropod of the Kimmeridgian and Titionian Ages of the Late Jurassic and also the most dangerous. 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 three fingered arms with claws up to 15 cm long, which helped it hold on to its prey. Its tail was long and