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.
Microraptor was not a sea creature but a small feathered Dromaeosaurid dinosaur and is a link between birds and dinosaurs. Their size ranges between 42 to 83 cm (1.4 to 2.7 ft). From the early Cretaceous period between 110 â 120 million years ago. Its torso is less than one hand wide.