What is the biggest dinosaur in the World?

Amphicoelias might have been the biggest, heaviest and longest dinosaur to ever roamed the Earth.

Amphicoelias facts:

Based on fossil records, this dinosaur was the biggest ever. At over 200ft long and 120 tons. Very little is known about this giant dinosaur.


smallest dinosaur: Parvicursor facts

Parvicursor is the smallest dinosaur to have walked on Earth.
At about 15 inches tall and 5 ounces, Parvicursor was the smallest dinosaur. It walked and runned upright with two long legs and small arms.