Top 20 Most Incredible Prehistoric Sea Monsters

Time travelers should stay out of the water! For this list, we’ll looking at the most fascinating and remarkable sea creatures from prehistoric times. Our countdown includes Mesosaurus, Kronosaurus, Helicoprion, Megalodon, Livyatan Melvillei, and more! What’s YOUR favorite prehistoric sea monster? Let us know in the comments!

Watch more great monster videos here:
Top 20 Monster Characters of All Time: https://youtu.be/Wo3Hp0oMHfk
Top 10 Scariest Movie Monsters: https://youtu.be/8wvwOKT3h7I
Top 20 Best Monster Movies of the Century (So Far): https://youtu.be/yYiMBsQMWkY

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