When Sharks Swam the Great Plains

  • Published: 05 December 2018
  • Check out Origin of Everything: http://superiorjanitorial.pro/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: superiorjanitorial.pro/user/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.
  • Science and Technology Science and Technology

Comments • 963

  • Emma Cat
    Emma Cat  15 hours back

    Chicago sits on top of ancient Silurian reefs.

    • Zimrian Zimrian
      Zimrian Zimrian  5 days back


      • Joelle Wong
        Joelle Wong  3 weeks back

        This is one of my favorite Eons episodes. Cool ancient marine life!

        • Linda T
          Linda T  4 weeks back

          lol I always laugh when American's pronouce things such as niche and route hahaha...

          • KTSP
            KTSP  1 months back

            If I stayed where I am now and went back in time far enough my state( Texas ) and a the middle of the us would be a sea

            • ivan abrosimov
              ivan abrosimov  1 months back

              i like how your smiling when you said the 2.5 long fish inside xiphactinus must have exploded some of its organs or something.

              • Jake Currier
                Jake Currier  1 months back

                I went to college in Hays, KS and have seen the fossil shown, fish within a fish, very cool to see this featured in an educational video.

                • JoJo Bean
                  JoJo Bean  1 months back

                  It shows Michigan and its lakes are intact. Any way to see how they form?

                  • Stanley Osburn
                    Stanley Osburn  1 months back

                    I came across a airra with fossilized animals in the donkey hills in Idaho one rock has the rib cage of a large animal of some kind ,the ribcage is 6ft long

                    • M33t My Blade
                      M33t My Blade  1 months back

                      Why tf she calling dinosaurs reptiles

                      • B Fowl
                        B Fowl  1 months back

                        Now I wanna build a seashell castle

                        • Dennis Weber
                          Dennis Weber  2 months back

                          can the western interior seaway come back w/ global warming?

                          • will Thomas
                            will Thomas  2 months back

                            she's kinda cute

                            • Maggot
                              Maggot  2 months back

                              Why does no one ever mention the third large landmass up north?

                              • Kevin Lalonde
                                Kevin Lalonde  2 months back

                                Wow crazy that the great lakes were around back then

                                • Login Yoass
                                  Login Yoass  2 months back

                                  I've found tube like fossils of plants and some shells

                                  • Gloria McClamma
                                    Gloria McClamma  2 months back

                                    I want to know how Andrewsarchus evolved into sheep and goats, please!

                                    • Steve Okay
                                      Steve Okay  3 months back

                                      I'm totally going to recommend the book "The Oceans of Kansas" , by Michael Everhart, curator at the Sternberg Museum as a great book followup to this video.

                                      • Mitchell Whitehead
                                        Mitchell Whitehead  3 months back

                                        How global warming lead to global warming.

                                        • jake saenz
                                          jake saenz  3 months back

                                          i live in texas and i find seashells in my backyard

                                          • DMB fan
                                            DMB fan  3 months back

                                            Minnesota has a state park that you can dig for fossils, found a shark tooth there.

                                            • Michael Nonya
                                              Michael Nonya  3 months back

                                              No megladon ???

                                              • Veggieboy Ultimate
                                                Veggieboy Ultimate  3 months back

                                                Niche partitioning could be seen in YouTube, trying to make videos that does not have same content or else your channel will be deleted. Quite a similarity here huh?

                                                • Gloria McClamma
                                                  Gloria McClamma  3 months back

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

                                                  • Awkwurd Knight
                                                    Awkwurd Knight  3 months back

                                                    Big ol thighs

                                                    • Elise V.
                                                      Elise V.  3 months back

                                                      her voice is triggering my flight or fight response

                                                      • Brett
                                                        Brett  3 months back

                                                        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  3 months back

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

                                                          • rejvaik
                                                            rejvaik  3 months back

                                                            The narrator is very attractive

                                                            • FuzzyWuzzy98
                                                              FuzzyWuzzy98  3 months back

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

                                                              • Julie Mercer
                                                                Julie Mercer  3 months back

                                                                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.  3 months back

                                                                  What wrong with your background music??

                                                                  • MarloSoBalJr
                                                                    MarloSoBalJr  4 months back

                                                                    Imagine the farmers of today with that amazing waterfront

                                                                    • lemmingscanfly5
                                                                      lemmingscanfly5  4 months back

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

                                                                      • Lightning McDeutschland
                                                                        Lightning McDeutschland  4 months back

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

                                                                        • sierra 117
                                                                          sierra 117  4 months back

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

                                                                          • Dustin Langewand
                                                                            Dustin Langewand  4 months back

                                                                            10:20, the first casualty of deapthroat :P

                                                                            • Preston Miller
                                                                              Preston Miller  4 months back

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

                                                                              • ninerrider5
                                                                                ninerrider5  4 months back

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

                                                                                • ham
                                                                                  ham  4 months back

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

                                                                                  • Dally H.
                                                                                    Dally H.  4 months back

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

                                                                                    • Vijay Panchal
                                                                                      Vijay Panchal  4 months back

                                                                                      Love u sex bom

                                                                                      • Tom Kast
                                                                                        Tom Kast  4 months back

                                                                                        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  4 months back

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

                                                                                          • Cory Branch
                                                                                            Cory Branch  4 months back

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

                                                                                            • Jon Ballard
                                                                                              Jon Ballard  4 months back


                                                                                              • Chris Haugh
                                                                                                Chris Haugh  4 months back

                                                                                                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  4 months back

                                                                                                  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