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.