What was one of the largest sea dinosuars?

Question

Maybe the largest? Ive been looking for a good size comparison/image, but can't find it.

It's this huge... no..
HUGE, MONSTOROUS, ENORMOUS sea dino that has a name beginning with "L". can anyone give me a good reference or name to search? Thanks :)

I'm serious. No myths (though I do believe in nessie), like the loch ness monster. >>

Answer 1

Liopleurodon

Liopleurodon is a relatively common and well preserved fossil from several marine deposits throughout Europe. It was a type of pliosaur, or short-necked plesiosaur.

Pliosaurs are a group of plesiosaurs. Plesiosaurs are one of a type of reptiles that returned to the sea. They appeared in Early Jurassic times and rapidly split into two major groups: long-necked forms like Cryptoclidus, and short-necked forms, or pliosaurs like Liopleurodon.

It had four large paddle-shaped limbs, which made it a powerful swimmer. At almost 25 m long Liopleurodon was the biggest carnivore that ever existed. It had an enormous 3 metre long mouth which contained teeth twice as long as those of Tyrannosaurus. These were arranged in a distinctive rosette at the end of its snout. The remains of Liopleurodon attacks are also preserved in the fossil record. Half-eaten ichthyosaurs and teeth marks in plesiosaur flippers are clear evidence of their voracious appetites.

Answer 2

The sea dinosaur called Leviathan were supposed to be one of the largest of the Sea creatures. This webauthor also mentions two others that I had not heard of. They are the Sauropod dinosaur and the Hadrosaur,

Answer 3

Lochness monster

Answer 4

I don't think there were any aquatic dinosaurs. Those things were just big reptiles.

Answer 5

dunkuleosteus