Palaeontologists have identified a new species of dinosaur - 125 years after its fossil was found.

The team from the University of Bristol used modern digital scanning to reveal more detail on the fossilised jawbone, which was first found in Penarth, South Wales, in 1899 and has been on display at the National Museum of Wales.

The fossil consists of natural moulds left in limestone rock and students were able to use photo scanning to make a perfect 3D digital reconstruction.

The dinosaur has been named Newtonsaurus cambrensis, after Isaac Newton, because, "it is different from all other dinosaurs from around that time, and requires a distinctive name", said palaeontology student Owain Evans.

The students say the new information has revealed details that point to Newtonsaurus cambrensis being a large, carnivorous, predator that roamed what is now South Wales in the Triassic period.