Many dinosaurs will never be revealed to the modern world. This is due to the fact that only very few dinosaur bones are actually fossilized through the delicate and temperamental process. The tiniest dinosaurs and the largest will most likely be a mystery for the rest of time. Even though many dinosaur bones have been unearthed, only a few complete skeletons have ever been found. When scientists attempt to put together a skeleton from bones, many times the process involves a large amount of comparison between size and morphology of other bones.

From looking at the bones of dinosaurs, it has become clear that most dinosaurs had large bodies. Even the tiniest dinosaurs were bigger than anything else in their ecosystem and the largest dinosaur bones ever found indicate animals on a scale never seen in modern times. Dinosaurs bigger than the 38 ft tall Brachiosaurus found in Tanzania sometime between 1907-1912 have only been indicated by isolated bones.