When Sharks Swam the Great Plains

  • Published on: 04 December 2018
  • Check out Origin of Everything: https://www.youtube.com/channel/UCiB8h9jD2Mlxx96ZFnGDSJw

    If you’ve ever been to, or lived in, or even flown over the central swath of North America, then you’ve seen the remnants of what was a uniquely fascinating environment. Scientists call it the Western Interior Seaway, and at its greatest extent, it ran from the Caribbean Sea to the Canadian Arctic.

    Thanks to Dmitry Bogdanov, Nobu Tamura, C.R. Scotese, NASA and the many others listed throughout the video for making their images available to use.

    Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

    Super special thanks to the following Patreon patrons for helping make Eons possible:

    Katie Fichtner, Anthony Callaghan, Neil H. Gray, Marilyn Wolmart, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, سلطان الخليفي, Gabriel Cortez, Marcus Lejon, Anel Salas, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, Colin Sylvester, Philip Slingerland, John Vanek, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Sapjes, Daisuke Goto, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ruben Winter, Ron Harvey Jr, Jacob Gerke, Alex Yan

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    Oceans of Kansas: A Natural History of the Western Interior Seaway (Second Edition) by Michael J. Everhart.
  • Runtime : 12:41
  • dinosaurs dinos paleo paleontology scishow eons pbs pbs digital studios hank green john green complexly fossils natural history North America Western Interior Seaway sharks ancient sea predators plesiosaurs mosasaurs reptiles Great Plains carnivores Farrallon plate Cretaceous Jurassic Appalachia Laramidia Clams Xiphactinus kansas limestone Clidastes Tylosaurus Styxosaurus toothy fish niche partitioning


  • Gloria McClamma
    Gloria McClamma   1 days ago

    I want to know how Andrewsarchus evolved into sheep and goats.

  • Elise V.
    Elise V.   3 days ago

    her voice is triggering my flight or fight response

  • Dumbledore's Lieutenant

    I just want to say I love this channel. There's so much incredible content that can help me learn about things in a fun and easy way for completely free. Thank you so much for making it and helping me understand how truly bizarre and wonderfully massive our planet and its history is.

  • Eric Dufrane
    Eric Dufrane   5 days ago

    Woulda been nice to see more actual fossils n not just artists' rendering

  • rejvaik
    rejvaik   1 weeks ago

    The narrator is very attractive

  • FuzzyWuzzy98
    FuzzyWuzzy98   1 weeks ago

    If all these massive carnivores could co-exist for millions of years then surely humanity can too... Right?

  • Julie Mercer
    Julie Mercer   1 weeks ago

    Hi from Hays, KS!!!! The fish within a fish is really cool to see at the Sternberg as well as many other specimens. They even have giant animatronic dinosaurs.

  • Valentin S.
    Valentin S.   1 weeks ago

    What wrong with your background music??

  • MarloSoBalJr
    MarloSoBalJr   2 weeks ago

    Imagine the farmers of today with that amazing waterfront

  • lemmingscanfly5
    lemmingscanfly5   2 weeks ago

    What if there were tons of soft bodied prey in the seaway that didn’t fossilize.

  • Lightning McDeutschland

    I live in da prairies :3 lol it would be terrifying if there were sharks swimming around over here

  • sierra 117
    sierra 117   3 weeks ago

    In many parts of the Wasatch mountains, you can find sea shells high in the mountains. Quite amazing.

  • Preston Miller
    Preston Miller   3 weeks ago

    5:08 What is the plesiosaur eating? Looks like a penguin with the worlds weirdest balloon feet.

  • ninerrider5
    ninerrider5   3 weeks ago

    HA! Take that you stupid Christians................

  • ham
    ham   3 weeks ago

    I live in CO rn and this makes me want to dig in the ground and find giant marine animals

  • Dally H.
    Dally H.   3 weeks ago

    One day I will know of this elusive "Steve" character!

  • Tom Kast
    Tom Kast   3 weeks ago

    What I would like to learn about? It is what I would like for you to learn about, it is to answer the question about the origin of life. I have seen your programs, very, very, good. Thank you so much. But as you see, you get no farther than the prokaryotes. And the viruses origin? Same deal, three or four theories without any commitment as to the truth of lifes origin. So I would suggest that life has always existed in the universe (hypothesis). Next, how about hurling a rock, heated to falling-asteroid-temperature with some heat resistant prokaryotes or similar inside the rock and please see if the prokaryotes live. Other similar experiments would be great. And you history of organelles was really good. But I need commitment from you on real answers to these harder questions. Maybe just take a position and go for it!

  • Justin Sander
    Justin Sander   3 weeks ago

    South East Missouri has an abundance of sea fossils. So it extended at least to there at some point.

  • Cory Branch
    Cory Branch   1 months ago

    So European explorers were 68 million years late to sail the Northwest Passage?

  • Chris Haugh
    Chris Haugh   1 months ago

    2:39 oh I'm sorry what did you just say, something about the cretaceous period being "unusually warm" and 6 degrees higher on average than it is today? Must be all that global warming from those dirty humans.

  • Solrod
    Solrod   1 months ago

    So that's why the maps from that time show water splitting the U.S. in two. I always wondered, how do they know there was a sea there? Well here's my answer

  • John Williamson
    John Williamson   1 months ago

    Could you guys do a video on, Why birds lost their teeth?

  • Jesse Patterson
    Jesse Patterson   1 months ago

    you need to do a episode on Steve. STEVE IS ALWAYS THERE

  • Equine Arrow
    Equine Arrow   1 months ago

    It’s so weird when we go on long drives and I always think about what my surrounding would’ve looked like under water along with what all buried underneath my feet. I live in Fargo, ND

  • Lauren
    Lauren   1 months ago

    love death robots. 😭😭

  • Blitznstitch2
    Blitznstitch2   1 months ago

    I live in that ancient sea and I can literally just walk around and pick up fossils of sea creatures. Limestone is what we have as ground and it causes the water to be very hard. Cool... wait, global warming so I guess it could happen again.

  • duping delight
    duping delight   1 months ago

    Mosasaurs are cutie patootie♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡♡

  • duping delight
    duping delight   1 months ago

    Plesiosaurs are cutie patootie too♡♡♡♡♡

  • duping delight
    duping delight   1 months ago

    The crow shark is cutie patootie! ♡♡♡♡♡♡♡

  • Northern Trek
    Northern Trek   1 months ago

    Love the presentation by the elegant narrator

  • The Yeti Paul
    The Yeti Paul   1 months ago

    This stuff is so interesting to me. Makes it even more interesting when you got a hot chick explaining it to you, she is sexxxxy

  • Neutrine
    Neutrine   1 months ago

    I love her voice, its so calming :D and great content as always!