The spinosaurus jawbone recently described by Buffetaut and Del Sasso, belongs to probably the biggest carnivorous dinosaur known so far. Its dimensions confirm the size of the sample proposed by Spielberg in Jurassic Park III. Spinosaurus looked quite different from any other species of dinosaur, with huge apophysis on the dorsal vertebras, bigger even than its contemporary Ouranosaurus. The remains of this animal are always fragmentary as the skeletons are transported and scattered after death, before piling up disjointedly in the coastal deposits that produce the fossil layers.

​