Largest extinct animals
There is much controversy here. Fossil remains of a pliosaur nicknamed Predator X were excavated from Norway in 2008. It was about  in length and 41 metric tons in weight. However, in 2002, a team of paleontologists in Mexico discovered the remains of a pliosaur Monster of Aramberri, which is also estimated at  in length. However, this specimen is thought to be a juvenile, with evidence that it had been attacked by an even larger pliosaur. Some media claimed that Monster of Aramberri was a Liopleurodon this is unconfirmed.