2 toneladas

although a more typical size range would be 5 to 7 m (16 to 23 ft)

added a unique touch to his appearance

which has led to speculation about their herd behavior

The horns and ruff of Styracosaurus albertensis probably had a function for species recognition and mating rituals

Dryosaurus altus Simosuchus 2 toneladasDryosaurus altus, a species of ornithopod dinosaur that inhabited what is now North America during the Jurassic period, approximately 155 million years ago. It is one of the best known and most studied species of the Dryosaurus genus. Its name "Dryosaurus" means "oak lizard", and "altus" refers to its height and agility, as it was a relatively tall and agile dinosaur. This dinosaur was medium sized and had a slender body with long, strong legs, which