The remains were uncovered in the Sahara by Dr Paul Sereno of Chicago University, one of the world’s greatest fossil hunters.
In 2001 Dr Serno discovered the “supercroc” – an eight ton, 40ft long monster that lived at the time of the dinosaurs. The latest haul includes new species with an astonishing array of snouts and teeth.
The most ferocious is the “Boar Croc” – a 20ft long meat eater with an armoured snout for ramming its prey and three sets of dagger-shaped fangs for slicing up meat. The creature – Kaprosuchus saharicus – was found in Niger.