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

    If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

    Want to follow Eons elsewhere on the internet?
    Facebook - https://www.facebook.com/eonsshow
    Twitter - https://twitter.com/eonsshow
    Instagram - https://www.instagram.com/eonsshow/

    References:
    Oceans of Kansas: A Natural History of the Western Interior Seaway (Second Edition) by Michael J. Everhart.
    https://www.tandfonline.com/doi/abs/10.1080/02724634.2014.838573?journalCode=ujvp20#.U8BQ-61OURY
    https://www.researchgate.net/publication/259517413_Cretaceous_Eustasy_Revisited
    https://www.researchgate.net/profile/Joshua_Slattery/publication/280641436_EARLY_CRETACEOUS_TO_PALEOCENE_PALEOGEOGRAPHY_OF_THE_WESTERN_INTERIOR_SEAWAY_THE_INTERACTION_OF_EUSTASY_AND_TECTONISM/links/55c0927208aed621de13c50d/EARLY-CRETACEOUS-TO-PALEOCENE-PALEOGEOGRAPHY-OF-THE-WESTERN-INTERIOR-SEAWAY-THE-INTERACTION-OF-EUSTASY-AND-TECTONISM.pdf
    https://www.researchgate.net/publication/321632109_The_Late_Cretaceous_Western_Interior_Seaway_as_a_model_for_oxygenation_change_in_epicontinental_restricted_basins
    https://www.tandfonline.com/doi/abs/10.1080/02724634.2011.601714
    https://www.jstor.org/stable/1306568
    https://www.sciencedirect.com/science/article/pii/003101829090110S
    https://pubs.er.usgs.gov/publication/pp1561
    http://rspb.royalsocietypublishing.org/content/278/1706/681.short
    https://link.springer.com/article/10.1007%2FBF02990187
    https://pubs.geoscienceworld.org/gsa/geology/article-abstract/44/11/903/195080/temperature-and-salinity-of-the-late-cretaceous?redirectedFrom=fulltext
    https://www.rushcounty.org/PostRockMuseum/PostRockMuseum2.htm
  • 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

COMMENTS: 40

  • Uninspirational Lizard

    7:08 I collect fossil and one like this is next to my 2 million year old fossilized poop

  • Julianna Findley
    Julianna Findley   20 hours ago

    I would love to learn about the geology of the Appalachian mountains and how they were once the tallest mountains on earth (or were they?)

  • Pandas Panda Pan Das

    Nature: No peace.... just war.prehistoric Life: (had to dodge earth quakes, volcanoes and floods)

  • Nadjat Hettak
    Nadjat Hettak   2 days ago

    Dinosaur to live here in specially in the ocean🦖🦖

  • Bobby Albert
    Bobby Albert   1 weeks ago

    This is why the Great Plains is known to have tons of oil.Oil = prehistoric fossils.

  • Stella Chang
    Stella Chang   1 weeks ago

    “Predators lived in harmony, co-existing with countless other big predators. They didn’t compete each other to extinction” Prey: (0_0)

  • GohanLSSJ2
    GohanLSSJ2   1 weeks ago

    The whole Niche partitioning almost makes me think that each predators were like a gang operating in their own territories.

  • Blue_Kobolt
    Blue_Kobolt   2 weeks ago

    As a Canadian, the way you say niche irks me. That's a small grievance, though. I still greatly enjoyed the video :)

  • Helena Nilsson
    Helena Nilsson   3 weeks ago

    As someone who grew up on the fertile soil of a former lake, I'd be more surprised to hear about fertile farmland that hasn't been under water at one point or another. Heck, going back far enough and our plains used to be ocean floor too, the soil is full of trilobite and mollusc fossils. Really bummed me out as a kid, I wanted to find something bigger, like a t-rex, not water bugs and snails.

  • Zutto Aragi
    Zutto Aragi   1 months ago

    One thing I've always wondered about is what kinds of fossils might be in the ocean floor that we simply don't have a way to reach yet.

  • WestOfEarth
    WestOfEarth   1 months ago

    Growing up in the Midwest, I found a limestone rock as a kid which bore a fossilized imprint of a seashell. I remember being astounded at such a discovery wondering how it would have gotten there so far from any water. When I showed it to my dad, he explained how that part of the Midwest was once a sea. I think that was the first time I began to ponder the vast age of our planet.

  • Quarantini Olini
    Quarantini Olini   1 months ago

    I’ve always wondered why there is fossilized coral in the hills of southern Tennessee

  • TBR
    TBR   1 months ago

    Sharks had teeth like knives? Is this a species that can finally contend with humanity?!

  • Zackery German
    Zackery German   1 months ago

    I wish I could see that environment for just 48 hours

  • Lucifer's Devilish details

    Is it fun to think at those far away stars there planets that could be look though a telescope and looking at earth described like this.

  • Thutil
    Thutil   1 months ago

    The song that plays at the beginning and end is amazing and I desperately want to be able to listen to it by itself

  • Beeblaine
    Beeblaine   1 months ago

    It’s like discord. A lot of predators

  • Mr Bojangles
    Mr Bojangles   1 months ago

    I'll never go to Kansas. With global warming and rising sea levels it's only a matter of time before it is an ocean with terrible sea creatures like this again.

  • roguelineage isfun
    roguelineage isfun   1 months ago

    Paleontologist found thay giant predator fish near my house I live in Texas btw

  • Viv Wallace
    Viv Wallace   1 months ago

    I love it when pictures of old times are painted like that.

  • Thani B
    Thani B   1 months ago

    This was the Northwest Passage those colonizers looked for back then. They were just a few million years too late.

  • Rachel W
    Rachel W   2 months ago

    ok i love this queen so much don’t get me wrong but anyone think she stands very awkwardly? i’ve watched so many of these and only just noticed but now i can’t unsee it

  • Νικόλαος
    Νικόλαος   2 months ago

    Από πού προήλθαν οι ήπειροι; Τόσα εκατομμύρια χρόνια μόνο αυτές υπάρχουν; Στο 1:35 σχηματίζουν κάτι σαν κρατήρα. Μήπως αυτό είναι μετά από πρόσκρουση που είχε η γη με άλλο σώμα;

  • QBig1234
    QBig1234   2 months ago

    According to the scale that is in the picture of that Inoceramus shell, the thing would be only about 4 inches.

  • Necaradan666
    Necaradan666   2 months ago

    How do all these predators live in the same oceans?.. The Arks are monitored and curated ~Helena.

  • B M-Y
    B M-Y   2 months ago

    What's the point of the wide angle shot of her? Kind of weird.

  • Kalevipoeg
    Kalevipoeg   2 months ago

    I REALLY want to know where she gets her shirts, and whether they have them for men. Maybe include that at the end or start of one of your videos? Also, maybe a good video topic would be "Why you aren't likelty to find a dinosaur in the midwestern United States"...I say this because a lot of people approach my paleo / geo community asking if this or that is a dinosaur and they're over in Wisconsin or Illinois or Iowa. The understanding that a lot of those sediments simply didn't survive to the present isn't very public, I guess.

  • ARNAB GORAI
    ARNAB GORAI   2 months ago

    I like her because of her accent.... I can understand her more easily.... Than others as she doesn't speak as fast like others....😇....👌

  • Max Luthander
    Max Luthander   2 months ago

    Gives me intense anxiety thinking of falling into that sea