10 WEIRDEST Prehistoric Sharks That Ever Lived!

  • Published on:  3/14/2020
  • Hi, it’s Katrina! From a shark with a teeth that worked like a circular saw to another with a spiked fin shaped like an ironing board sticking out from its head, here are 10 of the weirdest prehistoric sharks!

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    10. Galagadon
    This ancient shark had teeth in the form of an alien spaceship!! This prehistoric freshwater shark was called Galagadon nordquistae, named after the 1980s video game “Galaga” for its tiny, alien-like, triangular teeth. Did any of you play this game? Do you know what I’m talking about?

    9. Phoebodus
    The primitive eel-like Phoebodus shark genus lived 360 million or more years ago, during the Late Devonian period. Last October, an international team of researchers announced the discovery of the first nearly-complete Phoebodus shark skeleton in Morocco’s Anti-Atlas Mountains. The find was especially significant because sharks are made of cartilage.

    8. Scaleless Shark
    Considered the first “true shark,” the extinct Cladoselache genus lived around 380 million years ago in Europe and North America, during the Late Devonian period.

    7. Scapanorhynchus
    Scapanorhynchus means “spade snout” and is an extinct shark genus that dwelled in what is now the Atlantic Ocean, and perhaps worldwide, from the Early Cretaceous period and possibly into the Miocene.

    6. Anvil Shark
    Nicknamed the “anvil shark” and the “ironing board shark,” this extinct prehistoric shark genus is most recognizable by its anvil- or ironing board-shaped dorsal fin. If it weren’t for that it would look like many modern sharks today, but that bizarre fin separates them from the bunch and was also covered with rough, tooth-shaped scales or spikes, along with a matching patch on their snout.

    5. Crusher Shark
    Ptychodus mortoni, or the crusher shark, is an extinct genus that lived between 100 and 85 million years ago.Why is it called the crusher shark? Because it had 1,000 teeth which it used to pulverise shelled animals. It was one of the largest sharks of the Late Cretaceous period and was one of the largest ever shellfish eating animals.

    4. Ginsu Shark
    Cretoxyrhina lived throughout the world’s waterways between 100 and 75 million years ago, during the Middle- to Late Cretaceous. Known more commonly as the Ginsu shark, it was one of the largest sharks of its time, growing over 24 feet (7 meters) long and weighing between 1,000 and 2,000 pounds (454-907 kg) -- comparable in size to today’s great white.

    3. Scissor-Toothed Shark
    The Edestus, or scissor-toothed shark genus lived between 330 and 300 million years ago, during the Late Carboniferous period. For a long time, scientists were stumped by its bizarre tooth configuration. The scissor-toothed shark was a member of a poorly-studied, strange order of cartilaginous fish called Eugeneodontida, who had large, often spiral-like sets of teeth unlike anything seen in today’s animal kingdom.

    2. Buzzsaw Shark
    The extinct shark-like Helicoprion genus is related to the scissor-toothed shark and existed as far back as 290 million years ago, during the Early Permian period. It was incredibly large, reaching between 20 and 25 feet (6.1- 7.6 meters) long.

    1. Bandringa
    The bandringa was a single shark species that lived over 300 million years ago in what is now the upper Midwest of the United States. It’s the earliest-known migratory animal and the only known shark that migrated from freshwater to saltwater.