Naturalist Charles Pickering was the librarian and a curator of the Academy of Natural Sciences. In 1843, he traveled to Africa and India to research human races. In 1848, Pickering published Races of Man and Their Geographical Distribution, which enumerated eleven races.
It lived from 98 to 83 million years ago, separating itself from the Velociraptor by roughly 10 million years. You might say it's an ancestor of the actual Velociraptor, even though the original specie of raptor was almost the size of modern chicken and the Achillobator was roughly 1 ft taller than the average person.
Velociraptor (meaning Speedy Thief) is a prehistoric creature that was included in the original Fossils and Archeology Mod. It grows to over 1 block tall and 2.5 blocks long in six Minecraft days. Upon death, they can drop velociraptor meat, velociraptor talons, leg bones, arm bones, rib cages, vertebrae, claws, feet, and skulls. Like most other mobs in the mod, they do not spawn naturally in the world and must be created by the player.