25 Responses

  1. Dennis at |

    What about Godzilla?…No wait..he wasn’t prehistoric..He was caused by radiation…never mind.

    Reply
    1. Brandon Noble at |

      Megalodon should be number one!

      Reply
      1. Brandon Noble at |

        10.Sea Scorpion 9. Helicoprion 8.Kronosaurus 7. Basilosaurus 6.Elasmosaurus (Pleasiosaurus) 5. Dunkleosteus 4.Mosasaurus 3.Hainosaurus 2. Tylosaurus 1. Megalodon <What the list should be!

        Reply
        1. zai at |

          What about the PLESIOTH

          Reply
  2. Mike D. at |

    what about Sigmund da Seamonster?

    Reply
  3. Dennis at |

    Hey, you left out Nemo.

    Reply
  4. The Riddler at |

    Nice list, although I expected the number 1 monster to be a bit more…monstrous.

    Reply
    1. Tom at |

      I guess #1 got there because it can still kill you. :D

      I think it is a good list as it stands. I would have expected Meg at #1, but I did not realize most of these beasts existed until today. And giant stingrays? Yeah, never getting near a body of water larger than my bathtub ever again.

      Reply
  5. Brian Myers at |

    #2 … “They lived in the same oceans and ate the same food as the Megalodon, so this whale actually had to compete with the largest predatory shark ever.”

    WHY has this not been made into a drive-in movie yet?!?!?!?!?

    Reply
    1. Dennis at |

      Because there are no drive-in movies now.

      Reply
      1. Brian Myers at |

        Actually, there a handful of drive-ins left http://www.driveinmovie.com/mainmenu.htm I have 2 within 40 miles of where I live. I forgot how cool they used to be when we were kids :D

        Reply
  6. Ian at |

    Hey giant squids are still alive too, and they’re pretty monstrous…

    Reply
  7. write at |

    Wow, Jaekelopterus rhenaniae are the sea scorpion…

    Reply
  8. dallas daniel hessler junior at |

    they did not mention the kraken

    Reply
  9. Dennis at |

    What about the Rosie O’Donnellsaurus? That’s as terrifying as it gets.

    Reply
  10. Colin Burns at |

    Six giant fearsome predators of the ancient seas are not shown here. I doubt you have done much research on everything and anything ever written about them. Here is a list of Apex predators:
    PURRUSAURUS , which is a type of Cretaceaus Caiman up to 13 metres long.
    SARCOSUCHUS, a Cretaceaus Crocodile up to 15 metres (50 ft) long.
    The DEINOSUCHUS is another Cretaceaus Crocodile up to 15 metres (50 ft) long. The above three are considered with the top seven greatest bite force of all time.
    The ICHTYOSAUR is a giant predatory sea reptile in which the largest of the specjes is at 75 feet long that looked like a cross between a dolphin and a fish with a shark-like tail.
    The DUNKLEOSTIUS, at around 33 ft long is considered in the top three apex sea predator of all time and top two bite force along with the PREDATOR X, an apex at 49 ft and considered to be the one with the greatest bite force (x4 that of T-Rex) of any other creatures past or present.

    Reply
    1. Colin Burns at |

      Correction. Deino is an Alligator. Top three greatest bite force at number one is the MEGALODON, then a toss up between DUNKY and PRED X for 2nd and 3rd.

      Based on updated findings.

      Reply
  11. August at |

    Just so no one is confused liopluridon was not 20 feet long but actually 20-30 METERS long with the largest being close to 50 meters making it one of, if not the largest predatory animal ever to live on the planet.

    Reply
  12. Hina at |

    Thanks for the great list! Very interesting!!

    Reply
  13. Alas at |

    I’d except Godzilla as NUMBER 1

    Reply
  14. Hezekiah at |

    Levyatan.. that sea monsters was mention in the bible… find it in The book of JOB

    Reply
  15. Alas at |

    Well Godzilla is not real,so it is not number 1. The true number 1 is the 300 ton balenosaurus whale.

    Reply
  16. zai at |

    How big was MICRORAPTOR?

    And how long was is it?

    What year was they live?

    pls. reply me

    Reply
    1. Colin at |

      Microraptor was not a sea creature but a small feathered Dromaeosaurid dinosaur and is a link between birds and dinosaurs. Their size ranges between 42 to 83 cm (1.4 to 2.7 ft). From the early Cretaceous period between 110 – 120 million years ago. Its torso is less than one hand wide.

      Reply

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