Dinosaurs share variety of skeletal features. Appalachiosaurus Fossils found give us information about its length, height, weight and other features of this dinosaur. The size of dinosaurs is enormous and contradicted all the laws of physics and the reason for their huge size is still not completely identified yet. Appalachiosaurus Characteristics tells us about its size and shape of body. Appalachiosaurus size tell us that its length is 23 m. Itweighed 1000 kg.