Top 10 Deadliest Prehistoric Sea Monsters

This list is about deep sea horrors such as megalodon. Vote now!

The Top Ten

1 Megalodon Megalodon The megalodon is an extinct species of shark which was about 59 feet (18 meters) long and hunted in the seas until about 1.5 million years ago. It was similar to today's great white shark-but three times longer and 20 times heavier. ...read more.

They ate eobaelanoptera. But too good to true they gone

Megalodon is big has a great bite have a strong tail and have a excellent sense so it is the best

Deadly. end of story cause they hunted 20m whales with a massive bite and super senses. they are the masters of all sharks.

Quote "the masters of all sharks"

V 2 Comments
2 Predator x
3 Liopredon

Liopleurodon is predator x and its liopleurodon.

4 Biting Sperm Whale
5 Kronosaurus
6 Mosasaurus
7 Deinosuchus Deinosuchus Deinosuchus is an extinct genus related to the alligator that lived 80 to 73 million years ago, during the late Cretaceous period.
8 Dunkleosteus

CAN CRACK CONCRETE! 1

9 Livyatan Melvillei

It rivaled Megalodon as King of the Seas. Twice the size of Liopleurodon and bigger than Predator X. Biting sperm whale? The Livyatan is king of sperm whales. It would crush everyone here except mabe Megalodon and Dunkleosteus. Also, Liopleurodon is spelled wrong.

Lmfao, “biting sperm whales”.

10 Sarcosuchus

The Contenders

11 Basilosaurus
12 Shonisaurus
13 Elasmosaurus
14 Ichthyosaur
15 Rhomaleosaurus
BAdd New Item
P