19. A Tiny T-Rex Cousin
This fossil belongs to a dinosaur species called Suskityrannus hazelae, which was alive around 92 million years ago. At only 3 feet tall, after more fossils of this species have been found, scientists realized that the Suskityrannus is actually related to the huge T-Rex! The two species, although their sizes are very different, are related: the two have strong feet an jaws to crush their prey.