How big was a liopleurodon?

A liopleurodon did not really reach the lenths of 80 feet long (it was only a predicted size) .They were really 33 feet long on average and grew up to a maximum size of 42 feet long but a new species of liopleurodons called Predator x (the Salvabard PliOSaur) could grow almost 55 feet long .