The Most Useful Fossils in the World

  • Publicado el 26 mar 2018
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    For decades, one of the most abundant kinds of fossils on Earth, numbering in the millions of specimens, was a mystery to paleontologists. But geologists discovered that these mysterious fossils could basically be used to tell time in the deep past.
    Thanks as always to Nobumichi Tamura for allowing us to use his wonderful paleoart :
    Produced in collaboration with PBS Digital Studios:
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    Agematsu S, Uesugi K, Hiroyoshi S, Sashida K. 2017. Reconstruction of the multielement apparatus of the earliest Triassic conodont, Hindeodus parvus, using synchotron radiation X-ray micro-tomography. Journal of Paleontology.
    Briggs DEG, Clarkson ENK, Aldridge, RL. 1983. The conodont animal. Lethaia 16: 1-14.
    doi: 10.1111/j.1502-3931.1983.tb01993.x
    Dzik J. 1991. Evolution of oral apparatuses in the conodont chordates. Acta Palaeontologica Polonica 36(3): 265-323.
    Goudemand N, Orchard MJ, Urdy S, Bucher H, Tafforeau P. 2011. Synchotron-aided reconstruction of the conodont feeding apparatus and implications for the mouth of the first vertebrates. PNAS 108(21): 8720-8724.
    Purnell MA, Donoghue PC. 1997. Architecture and functional morphology of the skeletal apparatus of ozarkodinid conodonts. Philosophical Transations of the Royal Society B 352: 1545-1564.
    DOI: 10.1098/rstb.1997.0141
    Purnell MA, Donoghue PC. 1998. Skeletal architecture, homologies and taphonomy of ozarkodinid conodonts. Palaeontology 41(1): 57-102.
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Comentarios • 316

  • Zachary Tolbart
    Zachary Tolbart Hace un mes

    Cool my undergrad research project for my Geology degree was part of a study using E. notchpeakensis as the base for stage 10 of the Cambrian Period (though I was mostly finding trilobite species to strengthen the GSSP case for it)

  • Dexter Soderberg
    Dexter Soderberg Hace un mes

    i found out this video is like really cool.. yeah

  • Zemplin Castellan
    Zemplin Castellan Hace un mes

    In a sense, they're also our ancestors, as well as all other vertebrates. We wouldn't be here without them.

  • Raid Leet
    Raid Leet Hace un mes

    Can we also get a "Most Useless Fossils in the World" video?

  • Robert Pruitt
    Robert Pruitt Hace un mes

    How about a show on the longest lived animals, insects, plants, and fungus?

  • JUST Darren
    JUST Darren Hace 2 meses

    I found some of those fossels in a creek beed once though they might have been some kind of fish teeth and know I know.

  • tiffany norris
    tiffany norris Hace 2 meses +1

    Loved this

  • x0xtran9x0x
    x0xtran9x0x Hace 2 meses

    Wow her voice me gusta

  • Phasian LeDee
    Phasian LeDee Hace 2 meses

    A video about the evolution of spiders would be interesting

  • Arijit Kundu
    Arijit Kundu Hace 3 meses

    Thank you! That's a wonderful introduction to the conodonts. Kindly try to make video on the classification of conodont.

  • Dis mal
    Dis mal Hace 3 meses +2

    Probably best channel in a whole damn site馃憣

  • Thierry Salmon
    Thierry Salmon Hace 3 meses


  • wrybreadspread
    wrybreadspread Hace 3 meses

    So conodont fossils are indicators like pottery shards in archeology
    As for liking faces...Kallie's dimples are most endearing,...if I may say so

  • Josh Weissenberger AKA Sledge 121212


  • alus nova
    alus nova Hace 3 meses

    I love the way she speaks and the happy excitement in her voice when she explains these vids!!!!!!!

  • zjkovach324
    zjkovach324 Hace 4 meses

    I work in a conodont biostratigraphy lab at the Indiana Geological and Water Survey, working under the successor of Carl Rexroad. Super excited to see the spotlight on conodonts!

  • Fran莽ois-Xavier Dessureault

    I'd like an episode about limestone and flint! Arguably two of the fossil products that were most crucial to the development of human technology, long before fossil fuels were.

  • Nexu Jin
    Nexu Jin Hace 4 meses

    "because I like your face" 馃槀 that's a hilarious response on all the comments in other videos

  • starspawn
    starspawn Hace 4 meses

    Is it possible that the lampreys of today are actually descended from a kind of conodont?

  • YPG
    YPG Hace 5 meses

    Vamos, que son lampreas.

  • pivot
    pivot Hace 5 meses

    please make a video on the evolution of pangolins and armadillos!

  • Aakash Nair
    Aakash Nair Hace 5 meses

    Perhaps they werent as abundant as they seem cos they lingered mainly around dead bodies eating dead matter which later became fossils. Hence they cld get wiped out despite turning up all over the fossil record.

  • Rizka Sekar
    Rizka Sekar Hace 6 meses +1

    Everybody talking about conodont but nobody care about what cono could do

  • Joseph Matthews
    Joseph Matthews Hace 6 meses +3

    Lol humans are all like, "we are the Pinnacle of evolution!"
    Conodonts are like "pffft son, we existed for dang near 300 million years. Keep you're so called 'intelligence.' prolly gonna blow yourself before you get half our age."

  • Celestine H.
    Celestine H. Hace 6 meses

    no most useless fossils?

  • Jeronimo Tamayo Lopera
    Jeronimo Tamayo Lopera Hace 7 meses


  • Michael Urban
    Michael Urban Hace 7 meses

    Pollen. Pollen. Pollen. POLLEN

  • Drew B
    Drew B Hace 7 meses

    My Mom always taught me to not focus on the Conodonts - but instead on the Cono"do"s

  • scott gurney
    scott gurney Hace 8 meses

    subtitles only please

  • Juan Jackson
    Juan Jackson Hace 8 meses +1

    Solid presentation skills, as usual.

  • Michael Exman
    Michael Exman Hace 8 meses

    Like Vole teeth

  • BlueM00n
    BlueM00n Hace 8 meses

    Ive seen these conodont fossils but i never knew what they were. Really cool!

  • Nick Nack
    Nick Nack Hace 8 meses

    Somebody share this with Ken Ham

  • martijn van weele
    martijn van weele Hace 9 meses

    What about the most useless fossils in the world?

  • Mario Pineda
    Mario Pineda Hace 9 meses

    Magnificent explanation... it would be great to expand it with more details... congratulations!

  • Pasta Sarmonella E-Special茅

    Wouldn麓t it be cool if you could bring the condolates to life again?

  • Romain Burlot
    Romain Burlot Hace 9 meses

    Caution your Siphonodella sulcata is an Siphonodella obsoleta!

  • yogesh kumar
    yogesh kumar Hace 9 meses

    plz Make a video on when Human will possibly go extinct

  • pigtailsboy
    pigtailsboy Hace 9 meses

    Weird, I didn't realize it was the same person. That museum of the rockies video felt like the hostest was taking the viewer or inventory person out on a date. I prefer this format. Much more toned down and less sickening. And it's focused on why I came here in the first place. Much appreciated.

  • Bucket List
    Bucket List Hace 9 meses +1

    This is by far my favourite channel on ESclips. Please never stop producing content, even if you have to get really obscure and technical.

  • Andre Gulbis
    Andre Gulbis Hace 9 meses +1

    Goddamit I love this show. Just found it and can't stop watching...

  • A Ryder
    A Ryder Hace 10 meses

    So much interesting info from PBS Eons.. so captivating.. sometimes makes me wonder if there are actually people who think dinossaurs are a conspiracy, a the Earth is flat.....

  • Za Ha
    Za Ha Hace 10 meses

    Why, if some Organism had Millions of years to Evolve.
    Why no intelligence?

  • Christopher C
    Christopher C Hace 10 meses +1

    Thanks for this highlight!! My PhD work involves the study of chemical signals preserved in conodont apatite, so essentially all I do is pick them out under a microscope so I can dissolve them for mass spectrometry (sorry biostratigraphers :)). They are truly a versatile thing (similar to diatoms and forams as others have mentioned). Great job!

  • Yal Rathol
    Yal Rathol Hace 10 meses

    weird eel monster that are a better calendar/thermometer mix than anything else that ever lived?
    sounds like paleontology to me.

  • itsdonaldo
    itsdonaldo Hace 10 meses

    Eel teeth

  • Dharani kanthan
    Dharani kanthan Hace 10 meses +1

    This is super cool. PBS is awesome

  • Tim Sullivan
    Tim Sullivan Hace 10 meses

    "Conodont The Barbed-variant"

  • Nachannachle
    Nachannachle Hace 10 meses +2

    I like it how every single video from this channel ends with the extinction of the species presented.
    Mass extinction definitely is your business, PBS EONS.

  • DysnomiaFilms
    DysnomiaFilms Hace 10 meses

    ...And these fossils helped geologists date rock to different periods, among many other useful applications but they never knew what it belonged to. That animal... Albert Einstein.

  • Charles Champ
    Charles Champ Hace 10 meses

    Was that a Tully Monster at 5:10?

  • Tim Sullivan
    Tim Sullivan Hace 10 meses +2

    Coo-Coo for Conodonts! Coo-Coo for Conodonts!

  • Elysha Nygaard
    Elysha Nygaard Hace 11 meses +1

    favorite host btw

  • Elysha Nygaard
    Elysha Nygaard Hace 11 meses +1

    conodonts are so cool.

  • Linkopotamus
    Linkopotamus Hace 11 meses

    Fascinating video

  • Metaphysical Monotony
    Metaphysical Monotony Hace 11 meses

    Imagine if humans died out, and another race took over. What they would discover what we left behind.

  • Rachy Stogner
    Rachy Stogner Hace 11 meses +1

    I'm going to binge watch this whole channel...Love it, PBS

  • Calder Wishne
    Calder Wishne Hace 11 meses

    When did arthropods evolve silk? When did spiders begin spinning webs?

  • Fanaprimo
    Fanaprimo Hace 11 meses

    So they got extinct by high Carbondioxide level in the atmosphere.
    We use their remains to find gas and oil.
    Which we use to increase the Carbondioxide level in the atmosphere .
    I wonder for what our remains will be used in the far future.

  • STiR Woodcraft
    STiR Woodcraft Hace 11 meses

    Are these similar to the teeth inside turtles digestive tracts

  • Mac Dege
    Mac Dege Hace 11 meses +1

    I love Eons. Thank you!

  • Steve
    Steve Hace 11 meses

    So what is that structure called if it is not a true jaw?

  • Thomas ferris
    Thomas ferris Hace 11 meses

    You guys should do an episode on isopods

  • Max Der猫me
    Max Der猫me Hace 11 meses +1

    Awesome video once more, thanks again! Maybe one of the next videos could shed some more light on the bivalves? IMO really one of the most interesting groups still alive today. And their fossils are also often used as index fossils for specific time periods.

  • Dennis Lubert
    Dennis Lubert Hace 11 meses

    They should be renamed to chronodonts

  • BigMug Bob
    BigMug Bob Hace 11 meses

    Wow very cool.

  • harsh singhal
    harsh singhal Hace 11 meses

    This narrator is so much good than the previous one. He was always in a hurry.

  • aggrocrow
    aggrocrow Hace 11 meses

    I love it when educational videos explain how and why knowledge gained is useful! Obviously, learning just to learn is fun and valuable; but it makes some topics easier to engage with when a person (especially a student) isn't typically interested in it.

  • Adrian
    Adrian Hace 11 meses

    Fascinating! Please keep up the informative content, I love it.

  • Jeremy Cannon
    Jeremy Cannon Hace 11 meses +1

    I love this series and I always look forward to the next one. I would love to see more videos on life before the dinosaurs... Maybe like more on stem mammals or early amphibians. I find these times fascinating!

  • Astrid Ebrey-Henning
    Astrid Ebrey-Henning Hace 11 meses

    why the stupid background music? the music puts me off and enables me to miss information.

  • Jobie Lee
    Jobie Lee Hace 11 meses

    5:10 BOOM tully monster in yo face. youre welcome.

  • Indigo Rodent
    Indigo Rodent Hace 11 meses +3

    It's very interesting that they were so common and they are almost completely absent from reconstructions of sea life from periods they existed in.

    • RokuroCarisu
      RokuroCarisu Hace 7 meses

      Fun fact: So far the only appearence of conodonts in pop culture was in the 1992 SNES game EVO - The Search for Eden.

    • Dragrath1
      Dragrath1 Hace 11 meses

      Small ubiquitous creatures are to this day under represented as well sadly so a big part of this is probably a bias towards colorful showy or impressive creatures

    • Indigo Rodent
      Indigo Rodent Hace 11 meses +1

      It regularly happens with modern paleoart too, though. Conodonts are very rare despite that they were supposed to be so common.
      Though I guess the species composition in it can be some sort of an artist meme that endures from the past .

    • Dragrath1
      Dragrath1 Hace 11 meses

      Probably an artifact of the ignorance of Paleo-Artists at the time of production. It doesn't help that for a long while we had no idea what creature they came from

  • Nicole Law
    Nicole Law Hace 11 meses

    Freaking love this

  • 00RExProductions
    00RExProductions Hace 11 meses

    Thank you a loto for keeping up these amazing videos! It would be really interesting if you explained the differences between nimravids and machairodonts.

  • Shubham yadav
    Shubham yadav Hace 11 meses

    Mam also a episode on Agnatha

  • Shubham yadav
    Shubham yadav Hace 11 meses

    Oh yeah finally conodonts are a group of fishes

  • Shubham yadav
    Shubham yadav Hace 11 meses

    It's a very useful episode

  • Harrison McAnally
    Harrison McAnally Hace 11 meses

    Talk about Humans most recent ancestors and why they died off and we prevailed!

    • Dragrath1
      Dragrath1 Hace 11 meses

      I don't think we know the answer to that as much as we want to think we do...

  • movienaut
    movienaut Hace 11 meses

    Not that I complain, because I allways like hear alot from Kallie! Allways quality stuff in this channel!
    But what happened to Hank and Blake?
    I feel like they haven't been around in a long time!

  • chips Guy
    chips Guy Hace 11 meses

    Can you make a vidio of the big Turtle that livet aftor the dinosaurs

  • Cerberus
    Cerberus Hace 11 meses

    I'm surprised to find not one creationist in this entire thread. Maybe they begin to understand the implausibility of their position.. too much to expect from evangelical trumpers.

  • John Walters
    John Walters Hace 11 meses +1

    Conodonts indeed were abundant and useful, but I'll put in a plug for diatomaceous earth, which is composed of the silica remains of diatoms and has dozens of uses including water filtration and scouring powder.

  • Luigi Gaskell
    Luigi Gaskell Hace 11 meses


  • Megan Dunn
    Megan Dunn Hace 11 meses

    So cool!! And I like your face too.

  • Elias Mendenhall
    Elias Mendenhall Hace 11 meses

    What about a video about deep sea animals or plant life?

  • Rafe Walker
    Rafe Walker Hace 11 meses

    So ina nutshell the silly evolutionary faith uses these lil fossilized critters to date the layers of dirt, then they date the layers of dirt with the fossils found in em!
    Circular illogical reasoning anyone ?

  • Lennart Spdrn
    Lennart Spdrn Hace 11 meses

    I was about to watch Planet Dinosaur on curiositystream, but couldn't find it and I found out it's not available in every country, mine included. You should probably give out a warning for something like this!

  • David Perry
    David Perry Hace 11 meses

    How about something on the Azolla layer in the Arctic Ocean?

  • Nicholas Groshart
    Nicholas Groshart Hace 11 meses

    This is amazing!! Trilobites, conodonts, now maybe ammonites?? 馃榿

  • Miquel Escribano Ivars
    Miquel Escribano Ivars Hace 11 meses +2

    To be fair, Conodonts are far away from being the only index fossils.

    • BJ Nicholls
      BJ Nicholls Hace 2 meses

      But they are the ones that petroleum geologists love.

  • shimshimma
    shimshimma Hace 11 meses +1

    this is the most mind blowing thing ever

  • Swagatam Samanta
    Swagatam Samanta Hace 11 meses

    Please make a video about significances of the teeth in paleontology or about evolution of teeth...

  • Gandaleon
    Gandaleon Hace 11 meses

    Can anyone recommend any similar shows to Eons on ESclips? I'm very interested in paleontology.
    Archaeology as well, by the way. So if you happen to know shows about these topics, I'd be very interested
    to get some ideas.

  • rJaune
    rJaune Hace 11 meses +1

    Could you do a show about geological evidence of life? Like limestone cliffs, stromatolites, and and oil deposits. I think even beach sand can consist of shells and crushed corals. Was the biological nature of things like that obvious?

  • Douglas Quattrochi
    Douglas Quattrochi Hace 11 meses

    Great episode. (Nice timelines, too! =)

  • Sharan V
    Sharan V Hace 11 meses

    how do plants evolve to mimic insect hormones and appearances ...that would be intriguing

  • Pan Raphael
    Pan Raphael Hace 11 meses

    That's amazing. I never even knew that was possible.

  • Shreya Gupta
    Shreya Gupta Hace 11 meses +3

    RIP Conodonts. We will remember your contributions to palaeontology...
    Ross Geller, are you here??

    Read more

  • Dr Pancake Face
    Dr Pancake Face Hace 11 meses

    I'm a big fan of the channel. I subscribed when you guys started it and I'm subscribed to the others as well. However, i would like to ask can you please not use the music with the clicking in it. I use head phones and it is very irritating.