sure,many people must have know about liopleurodon............
its a marine reptile during mesozoic era.........belonging to plesiosaurus family.it is very huge.its skull is 15 feet long,it measures over 75 feet in length and weighing 150 tonnes.it is almost close to blue whale............But many people are not talking great about it in any site as far as i have seen .why ?
many say that blue whale is the largest animal ever lived...............who knows may be a larger reptile like liopleurodon would be even more bigger than blue whale in the past.may be the remains might have been destroyed............the same condition to sauropods also...................
they can say blue whale is the largest animal,but how they can say it is the largest ever lived.....i cant agree that

They don't say "That ever lived"

Well not anyone half decent anyway -

"That is living"

Is the term that should be used.

no man.............i saw in some site.i remember very well.living is the correct sentence,but i saw in some site............1 said that it is the largest ever lived.

I have read a few accounts that liopleurodon has been exaggerated and not actually that big, and the TV show "Walking with Dinosaurs" added to the hype. There has also been an enormous Icthyosaur bound in British Columbia that is about as huge. As I recall, it had no teeth and may have been a plankton feeder like the baleen whales. This animal seems to have a very massively thick body and therefore could outweight the blue whale.

Several new prehistoric animals are found every year, so yes, it is possible the largest sea reptile or dinosuar has not been discovered yet.

u r absolutely right man.............as i expected,that is there is possible that the bigger dinosaur or marine reptile has not been discovered yet.