Dinosaurs share variety of skeletal features. Alvarezsaurus 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. Alvarezsaurus Characteristics tells us about its size and shape of body. Alvarezsaurus size tell us that its length is 1 m and was 0.5 m tall. Itweighed 3 kg.