 All that can be said for certain, according to Michel Monbaron and colleagues, is that "Breviparopus" is quite distinct from the prints made by "Atlasaurus".However, the presence of a small medially directed thumb-claw print makes it likely the animal was a brachiosaur, since they have small thumb claws at ground level (as opposed to diplodocids and camarasaurids, whose thumb metacarpals are short and hold their thumb claws off the ground), and the narrow-gauge stance also fits with a brachiosaur body shape - in the Early Cretaceous, the dominant sauropods were wide-bodied titanosaurs, and deep-bodied brachiosaurs which had more narrowly spaced legs - therefore the narrow gauge of the "Breviparopus" prints favors a brachiosaurid diagnosis (this seems to be corroborated by the sacrum of "Brachiosaurus nougaredi", which is unusually narrow for its length even by brachiosaur standards).It is also worth noting that the bone fossil record from the Middle Jurassic, according to C.A.