'Feathered' Sharks Survived The Deadliest Ocean In Earth's History

Sharks have been around for a long time. They have technically been around longer than true trees have - originating in the Ordovician period, while the green woody giants emerged in the middle Devonian. Unfortunately, their cartilaginous skeletons decay to mostly nothing when they die under most circumstances. Only hard parts get preserved. This has left us with a slew of tantalizing bits and pieces of some of the weirdest things to slide through the water. One of those mysterious enigmas of the cartilaginous fish fossil record is the porcupine eel shark - Listracanthus.
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✅ RESEARCH ✅
Bolton, H. (1896). On the occurrence of the genus Listracanthus in the English Coal measures. Geological Magazine, decade 4, 3, 424-426.
EDWARDS, W. & STUBBLEFIELD, C. J. 1948. Marine Bands and other marker horizons in relation to the sedimentary cycles of the middle coal measures of Nottinghamshire and Derbyshire. Quarterly Journal of the Geological Society of London 412, 209-60.
HIBBARD, C. W. 1938. A new fish Listracanthus eliasi, from the Pennsylvanian of Nodaway County, Missouri. The University of Kansas Science Bulletin 25, 169-71.
KÖNEN, A. VON 1879. Die Kulm−Fauna von Herborn. Neues Jahrbuch für Mineralogie 1879, 309-46.
Mutter, R.J. & Neuman, A.G. (2006). An enigmatic chondrichthyan with Paleozoic affinities from the Lower Triassic of western Canada. Acta Palaeontologica Polonica, 51(2), 271-282.
NEWBERRY, J. S. 1873. Descriptions of fossil fishes. Report of the Geological Survey of Ohio 1(2), 245-355.
NEWBERRY, J. S. 1875. Descriptions of fossil fishes. Report of the Geological Survey of Ohio 2(2), 1-64.
NEWBERRY, J. S. & WORTHEN, A. H. 1870. Part II - Paleontology of Illinois - Section I - Description of fossil vertebrates. In Geology and Paleontology (ed. A. H. Worthen) 6, 345-74. Authority of the Legislature of Illinois, Chicago.
SCHMIDT, W. 1950. Uber Listracanthus woltersi n. sp. und einen anderen neuen fishrest aus dem tiefsten Westfal B von Prosper II bei Bottrop/Westfalen. Zeitschrift der Deutschen Geologischen Gessellschaft 101, 44- 58.
WOODWARD, A. S. 1891. Catalogue of the Fossil Fishes in the British Museum (Natural History), Part 1. British Museum (Natural History), London, xlvii + 474 pp.
WOODWARD, A. S. 1903. On the Carboniferous ichthyodurolite Listracanthus. Geological Magazine 10, 486-8.
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[@evodolka]

It's crazy that "feathered" sharks might have been a thing and nobody talks about it

[@Seeker-Recordings]

IKR, they are so cool.

[@johnwright-b2l]

Listracanthus is another interesting character in the evolutionary history of sharks.

[@РоманКарле-м4ы]

30 минут новых знаний об древних акулах это крута !

[@H0r53f7y]

Add to list of "why isn't there a Pokemon based on this creature yet?!"

[@Disorderlie_Dot]

gen 10

[@vinny184]

Cartilaginous fish ≠ sharks. Sharks aren’t older than trees, but the larger group which includes the ancestors of true sharks is. There are still extant descendants of these earlier diverging cartilaginous fish, the chimeras which aren’t sharks. The oldest known sharks (the clade Selachii) are from about 200 million years ago during the Early Jurassic. Similarly you wouldn’t call a T. rex a bird even though they all belong to Dinosauria.

[@drjekyllmshyde]

All sharks are cartilaginous fish, not all cartilaginous fish are sharks. 🦈

[@vinny184]

@@drjekyllmshyde exactly. It’s the same mistake people make all the time with crocodiles by calling all of Pseudosuchia crocodilians, giving the impression crocodilians are a much older group of animals than they actually are.

[@reeyees50]

Terminology nerd

[@vinny184]

@@reeyees50 I prefer paleontologenius but sure

[@AncientWildTV]

You’re right-- cartilaginous fish encompass a wider range of species beyond just sharks, including chimeras and skates. but how do paleontologists use fossil evidence to trace the development and diversification of these species over millions of years?

[@Alberad08]

Thanks a lot for creating & sharing this!

[@reeyees50]

EDGE SCIENCE BEST PALEONTOLOGY ON KZbin NUMBER ONE FOREVER

[@jimroberts3009]

Sharks aren't fish, birds are Dinosaurs, snakes are lizards, I'm beginning to get confused!!! 😀😀😀

[@afunnytheropod]

Taxonomy am i right?

[@jimroberts3009]

Right you are. Things have changed a lot in the 50 odd years since I did Zoology at college!

[@jimroberts3009]

And of course Phylogenetics. Plate tectonics wasn't even a know thing when I was a callow youth and of course all dinosaurs were tail daggers!

[@phillipthomas5179]

Ayyy a local mention, I’m from Ashton-under-Lyne! Just a quick note Dukinfield is pronounced ‘duck-in-field’ 😂

[@VanessaScrillions]

Yay!!! New EDGE video!!!! 😊😊😊

[@DragonBro228]

great video!

[@notmyrealname4]

Why does the intro horn need to be twice as loud as the rest of the video? Are you trying to evoke the hatred I feel for streaming companies and how their commercials are twice as loud as the show I probably fell asleep watching? If so, you're nailing it.

[@SamTheUndying]

Listracanthus has always been a favorite of mine. Ever since I have found their scales, and learned of their story in 2019 I have been trying to track down pieces of this wonderful animal. About a week ago, I found a fragmentary body section with 1 type 1 listracanthus scale and mostly type 2 scales similar to the ones in the paper seen at 18:05 Funny enough I have found 1 small crusher tooth less than a mm close to the fragment, but I also found a conodont tooth in the scale mass so it is most likely float from someother animal. Plus it was a very thin body portion probably far from the mouth. Never know, though! Edit: Turns out is was a broken and malformed conodont tooth, which is sad, but that happens. I knew it was too small but the scale mass is still listracanthus with 150+ scales.

[@naninaze]

I would ADORE if you gave us a link to that song at the end! I know it's a remix of a song associated with some old VHS Dinosaur documentaries I watched as a kid.

[@haraya_manawari]

is this a reupload? I swear I saw this a couple of months ago

[@giovannia.casula2542]

Reupload?

[@DreadEnder]

Awesome!

[@CeciliaTheCherry]

But are they smooth

[@PabloSanchez-qu6ib]

I think you shouldn't use that animated crumpled paper background. It's just distracting.

[@manusgiovanniodonnell1206]

I have a paper on a trilobite published in acta paleontologica polonica!!! First time I’ve heard the journal mentioned

[@EDGEscience]

I would love to work with you to get a video done on your paper! Please send me an email! [e-mail]

[@markheath465]

Nice

[@elishaberry611]

Maybe one day, we'll get to see if the spiny eel shark holds true.

[@SpliffingBrit]

Fish are real! You just happen to be one

[@bobsmith284]

Interesting video, but I'm admittedly disappointed expecting a shark with multiple backbones (spines).

[@StormyBuckets]

it's real.... fur bearing trout...

[@antoniaweber8074]

one tip the german pronunsitions are way-------y of. next time try to prenounce it more like spanish spanish letter pronounsiation is much closer to german than english. you dont haye to get it perfect but the words should in my oppion at least be recocnisible. to not increas worklode just try spanish it is a much better bet to pronunce words corectly than english is for most lenguages