In numerous campaign settings of the Dungeons & Dragons fantasy role-playing game, dinosaurs, based upon the actual-life extinct reptiles of prehistoric ages, are present. Some of the dinosaurs used in D&D, such as the Triceratops, Tyrannosaurus Rex, and Ankylosaurus, are real ones which used to exist on earth. Others, such as the bloodstriker, fleshraker, and swindlespitter from the Monster Manual III, though labeled as dinosaurs, are made up, and as such are likely better regarded as monsters. Most D&D settings have a location where dinosaurs are known to dwell, and seeing as they coexist with intelligent races, they are sometimes depicted as tamed, with such things as armored T. rexes being used in battle and velociraptors used as mounts.