Concavenator (Cretaceous)

The Concavenator is a humpy carnivorous reptile closely related to Acro-canto-saurus. It inhabited the Spain territory in the early Cretaceous period. Its name means "Ku-wen-kuh hunter with a hump" because of the recovery place in the Ku-wen-kuh province. This is the most mysterious dinosaur with almost nothing revealed about the reptile’s life and habits. It definitely was carnivorous, attacking herbivores in the bushes or lake shores and was even capable of preying on large animals like Morelladon. The dinosaur was, however, smaller than its prey and pretty slow. It still unknown how it was capable of pinning down bigger and faster species.
Scientists assume Concavenators hunted in either a herd or solely ambushing a prey and sneaking up on it like cats. Another unusual feature was its hump. Paleontologists still do not even have a theory about what it was used for. They only have a few hypotheses. Perhaps it was brightly coloured and served for identification of its kind or perhaps it scared off the attackers or was used for thermal regulation or in mating rituals.