Top 10 Scariest Prehistoric Sea Creatures

This thing is 20meters long that's larger then a whale shark
A huge shark that can eat you whole.
If you think mosasaurus first then you're weird. if you watched jurassic world then the real mosasaur is two times smaller. Its teeth were designed to crush small ammonites and turtles. megalodon teeth were designed to kill animals two times its size in one bite. sooo...

The Liopleurodon will forever be my favorite animal.
Liopleurodon's bite force is 10 TIMES STRONGER THAN T. REX! And a T. Rex's bite is three times stronger than a crocodile, which is almost exactly 50 times stronger than a human's strongest bite! Which makes the Liopleurodon's bite 1,500 stronger than a human's bite. Whoa...
It killed the indominus Rex.
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Who voted this it’s so small
I mean, it is a filter feeder
This denizen of the Devonian is not the biggest creature on this list. It is, admittedly, probably not the most objectively dangerous. But what I find unsettling about Dunkleosteus is its beaklike jaws. Those could shear a limb-maybe even a head-clean off a hypothetical time-traveling scuba diver. In addition, Dunkleosteus seems just the right size to consider a human worthwhile prey.
Gigantic fangs that could easily impale you...
