Suchosaurus
In 1820, scientist Gideon Mantell got hold of some fossilized teeth discovered near East Sussex, and in 1822, the British naturalist William Clift identified them as crocodile teeth. Two years later in 1824, Georges Cuvier mentioned them in the first interpretation of a spinosaurid fossil. But at the time, paleontologists didn't know about the crocodile-like teeth of spinosaurids