Mastodonte americano edmontosaurus a large bony crest on

a large bony crest on the back of the skull

Los fósiles de Platecarpus se han encontrado principalmente en América del Norte

such as Velociraptor

The name "Yutyrannus" means "feathered tyrant" and refers to its relationship with tyrannosaurs

majestic flying creatures of the Mesozoic

Mastodonte americano edmontosaurus a large bony crest onThe American mastodon, scientifically known as Mammut americanum, was a species of extinct mammal that belonged to the mastodon family. These huge animals lived during the Pleistocene period, from about 2. 5 million years ago to about 11,700 years ago, and were native to North America. The American mastodon was similar in appearance to modern elephants, but had some distinctive differences. It had a stocky body and large, downward curving tusks. Its