Sharks of the Jurassic Oceans
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- čas přidán 8. 07. 2024
- Sharks have been around for a very, very long time. While the dinosaurs rose to dominate the land and diversified during the Jurassic Period, what were the sharks up to?
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Sources:
bioone.org/journals/paleobiol...
Protospinax:
www.mdpi.com/1424-2818/15/3/311
www.sci.news/paleontology/pro...
Paracestracion:
www.mdpi.com/1424-2818/15/3/386
onlinelibrary.wiley.com/doi/1...
www.sciencedirect.com/topics/....
www.researchgate.net/publicat...
Agaleus:
www.palass.org/sites/default/...
www.tandfonline.com/doi/abs/1...
link.springer.com/article/10....
www.frontiersin.org/journals/...
Sphenodus:
bioone.org/journals/paleontol...
www.mdpi.com/1424-2818/15/3/386
www.researchgate.net/publicat...
#SharkWeek #SharkWeek2024
Welcome… to Jurassic Sharks
(Music builds)
Beat me to it. Just saw the video.
@@nebulanDum-dum-dum dum dum, dum-dum-dum dum dum, dum-dum daaaaa, da-da daaaaa
It's... it's a dinojaws...!
@@Eloraurora czcams.com/video/Xr-4fyXfSa0/video.html
Welcome to the adventures of Shark Girl and Dino Lad
You ask what sharks were doing, but not _how_ sharks were doing.
You should be asking 'who' they are doing.
@@beneficent2557 why sharks were doing
Why were Sharks doing who and what? HOW?!
No exspense spared at Jurassic Shark.
lol that was a good movie
Thanks again guys for all your time and effort, Wobbegongs are my absolute favourite sharks,they're adorable and i want to hug them!! ☺️🤗🤗🤗🤗🤗
Carpet sharks are so silly and I want to boop them 🫠😅
Bee not being an entomologist is a huge missed opportunity :D
Excellent video! It was great to see Bee on here too. Will have to check out more of her content. :)
Looking forward to getting my own videos out for this years Shark Week, though mine will be coming out on the 15th through to the 21st.
RickRaptor105: *sees thumbnail and dies inside
Truly the most dedicated and suffering paleo-fan
@@yissibiiyteOur boi died so many times, hes like jesus if jesus had proper work ethic...
🤣
I absolutely love when sharks have little curly moustaches.
Great collaboration on ancient and modern sharks! Well done Bee and Ben.
The fact that Hybodonts are not sharks annoys me to no end
Same, and with Xenocanthiforms and related groups as well. One of the reasons Shark evolution is so convoluted to read about (In my opinion) is you'll get different authors referring to shark like Chondrichthyans as sharks, and others who only use sharks to refer to Selachimorpha. I remember how "disappointed" I was when I found out that sharks hadn't existed since the Devonian period, and "only" since the Mesozoic
To me, shark evolution always looked like a play between a pro shark protagonist and an anti shark antagonist, a prosharkonist and an antisharkonist.
Prosharkonist: Hey look! I made a shark from Cladoselaches!
Antisharkonist sends the Late Devonian extinction.
Prosharkonist: Hey look! I made a shark from Ctenacanthiformes!
Antisharkonist sends the Great Dying.
Prosharkonist: Hey look! I made a shark from Eugeneodontidii!
Antisharkonist sends the Triassic-Jurassic extinction event.
Prosharkonist: Hey look! I made a shark from Hybodontiformes!
Antisharkonist shoots a meteorite into Yucatan.
@@SiqueScarface But isn't Cladoselache a part of Holocephalii, rather than Elasmobranchii? And while the others are Elasmobranchs, none are "actual" sharks, the closest would be Hybodonts which are a sister group to Neoselachians
@@Steve_the_Radroach I see, you got the joke.
@@SiqueScarface Yeah, let's pretend I got it hahaha
Protospinax is life changing tbh. It's literally the cutest shark I've ever seen! It's so unfair that they went extinct lol
good shark videos are one of the major reasons I'm subscribed to this channel :P
one small note: At 4:38 you show a horn shark or relative with the subtitle "Cymothoa exigua", which is a parasitic isopod that to my knowledge does not parasitize any chondrichthyans
Edit: I've realised that the person who shot that photo calls themselves Cymothoa exigua on Wikipedia (it's the image of the horn shark's wikipedia article), which is a banger name tbh
That may be the best edit of a YT comment I've ever seen .
Hope we get more Bee, really enjoyed her participation in this video 😊👍 Sorry Ben, obviously I enjoy you aswell, why else would I be a subscriber? 😋
Welcome to Shark Week!🦈🦈🦈
ben all blushed at the start so cute
It is lovely to see she is wearing her credentials.
Bee has a great voice for this type of content
I LOVE SHARKS
They love you too ❤🦈
Sharks going low profile as they're not the apex yet in Jurassic or most Mesozoic
So, what I got from this, is that the region of what today is Germany apparently is amazing at preserving shark fossils.
Whale sharks are giant wobbegong ?I would have never guessed.
Those German fossils.....just wow!
Incredible video and an amazing guest host
Jurassic Shark, the 7th movie's new title.
I love the illustrated books and figures in the background!
Very good topic and video!
I LOVE SHAR
Shadowheart liked that
Welcome additional narrator!
Cusplets sound adorable
Shark Week!
Huzzah!
9:11 she's adorable! Love her voice too very much like ASMR to me as I listen.
Doug!
Anyways, I'd love a weird prehistoric sharks episode! I WANT BELANTSEA!
OGs remember when this was called Jurassic Sharks
Man i love sharks
But do you love mansharks?
Sounds like the Jurassic floored Sharks.
Imagine finding a Megalodon Impression in one of these quarry layers! How amazing would that be!
Not really. Would be like finding a rabbit in terrestrial Jurassic layers. Would have to be a hoax, or a case of erosion and new deposit on top and you missed where the transition was. Or you misidentified the fossil and it wasn't actually a rabbit/megalodon.
@@KellyClowers It wouldn't be amazing? 🤨
@@S-T-E-V-E no it would be either boring (incorrect ID, incorrect stratigraphy) or annoying (hoax)
@@KellyClowers Allow some wonder into your life!
@@S-T-E-V-E that's not wonder, that's ignoring reality. Which is fine for fiction, but not for real life
i really enjoyed this video
Has The Asylum stolen this title yet?
Shoutouts to morticia addams and milo from atlantis for these neat shark 📠
Very cool video and very great collab
This is pure genius. Absolutely loved it!
I can tell you're smart..........you got British accents
It's called "Received Pronunciation" - not every British accent/dialect/sociolect sounds smart...
@@sarielle85 I know, I was just saying that for the stereotype plus matpat made a joke about that, so......
@@sarielle85the way he talks isn’t Received Pronunciation, that’s a different, older accent.
Before I watch this video, the only "Jurassic" shark I was familiar with was Hybodus which was usually 2 meters long.
The last one is my favorite.
Thanks for the video.
I've never been this early
Oh boy, more shark videos! ❤
The roots are the most conserved part of a shark tooth. Looking at the roots of Agaleus, I would place it in Orectolobiformes as well.
Goated
Very interesting and informative.
WOBBEGONG MENTIONED
SHARK. POG.
Fascinating! 🧐
More ancient sharks, please!
Wow!
me watching this with my blahaj plush
Shark Week!
5 sharks from the Jurassic.
Port Jackson sharkie represent!
Jurassic Sharks!
Gracias
Four sharks, and three of them are from Germany... Prehistoric sharks were crazy about Oktoberfest, didn't they? 😜
Love Bees, top, hood... what is that thing? I want one
Port Jackson shark
Yes I love the lady, she’s great to listen to…!
Please a special about Cretoxyrhina
Wowowow
Would the jurassic shark theme sound like jurassic park? Jaws? Or a mix of both?
Has there been any fossils of Freshwater Sharks? (Bull sharks don't count).
Wow
Where Did the Jurassic Shark, Jurassic Park, in the Jurassic Dark?
BeeBen
alot of prehistoric animals look like something they actually arent
rutiodon and sarcosuchus arent crocodiles
helicoprion,edusteus,hybodus and stethacanthus arent sharks
and dimetrodon and edaphosaurus are not reptiles
Have you checked John A. Long recent book about shark history ? Great read !
I'm not sure I've ever heard someone discuss fossilized shark bodies or skeletons. And I mean I know there are rare soft tissue fossils of a lot of other things so I figured there must be some sharks but nobody talks about them
Now imagine if someone finds a full megalodon impression. It would be the fossil of the century and people won't shut up about it.
Ah I see that Asylum is still up and running with their budget crossover movies.
They've never once failed to make a profit. They know what they're doing.
Doug's transitioning was a shock, but I wish him well.
Holy goodness. The editor got rid of all but two twitches! Great job, really guys.
Protospinax is basal to Pristis, the saw shark, also Rhinobatos, the guitarfish, then Raja, the skate among others. On the other hand, Protospinax is a sister to Heterodontus, which is basal to the clade that includes Squatina the angelshark, Sphyrna the hammerhead, and Rhincodon the whale shark.
Here IO thought this was going to be a review of the terrible movie Jurassic Shark
Officially changing my name to The Sea so Bee will love me.
Glad to see b is here for some eye candy 😂
Great video.
do you think it's a problem that people are taking movies as fact and not looking things up themselves, cough cou Jw cgh Jp cough cough.
The other presenter has really strong vocal fry
First
Sharks are older than trees
They are not really. It's a common misconception caused by the fact that people often lump other shark-like cartilaginous fish under the term shark. The clade which contains true sharks emerged somewhere between the Early Permian and Early Jurassic (the range is so wide due to uncertainties in the exact classification of the earliest possible remains).
No wonder we have rising sea levels, when Bee decides to go snorkling with her huge, massive mega-balls.
What?
tooth scaling 🤮🤮🤮
Dude don't encourage TikTok use. Vertical videos suck and short form is cancer for attention spans.
The bigger problem with short form videos is that they pretty much force you to use autoplay, nobody who watches them is curating their content. You're watching whatever the algorithm wants you to watch. That's bad on CZcams where the algorithm sucks, and it's worse on TikTok, where the algorithm actively serves the interests of the fascist government of China
I want to love you bee but I cant handle 5he voice cracking 😢
Bruv seriously change the channel name or stop getting other hosts on. Theyre on more often than you but the channel is still just your name!
Shark chick is good
Did you say at the very start that sharks "likely" first evolved long before the dinosaurs? That's about the strangest use of "likely" I have heard in a while!
True sharks are members of the clade Selachimorpha. The earliest definite remains of such are from the Early Jurassic, but it's suspected that they may have appeared earlier based on possible members dating back to the Early Permian. All other prehistoric cartilaginous fish that are in a broad sense lumped under the term "shark" but are outside of this clade are not true sharks as they diverged from the lineage leading to to them before the common ancestor of all modern species of sharks.
Sounds normal to me - maybe a British English thing....
What's strange about that?!
@@Andrey.Ivanov Huh. In that case I would have expected something like "true sharks likely evolved long before the dinosaurs" or something. With just "sharks" I would expect the meaning of Elasmobranchii or even Chondrichthyes
@@Andrey.Ivanov but that does make more sense now, thanks
Sharks didn’t evolve in the Paleozoic, they evolved in the Jurassic, so they’ve only survived 1 mass extinction, the Cretaceous-Paleogene extinction.
Actually, I believe the first evidence we have of true sharks is from the Permian.
It's an important distinction. People assume that sharks are more resilient than they are, under the assumption that the lineage has survived multiple ...(insert Buffy joke)... apocalypsees?
But in reality, they are quite vulnerable. Quite the opposite of being multi-extinction survivors, over 90% of the Pacific population was wiped out during the Miocene, for reasons that remain unclear, and they still haven't fully recovered.
Many species breed quite slowly, and take a *long* time to reach maturity. There's only so much pressure that the group can be put under, especially the larger members, and we're in great danger of losing them. It's a conservation problem if people think that isn't a possibility.
@@nickporter4279
Selachimorphs (Sharks) evolved in the early Jurassic, before that you had things that were Shark like things like Hybodus & Helicoprion, but they’re not Sharks.
where do you guys find all the hot girls!!! talk about living your best life
Bruh, that’s what you’re focusing on?
@@Aerostarm lols nah I’m here for the nerd stuff just making an observation
Shark girl is ok i guess, if she can get rid of that vocal fry.
This has to be the weirdest thing to complain about in someone's voice
@@Andrey.Ivanov yeah but its still annoying.
@@DemoNinja79 🫵🤡
✝️ Fellowship invite
Go away