The Mosasaur's Takeover of the Cretaceous
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- Опубликовано: 13 сен 2024
- Mosasaurus, Tylosaurus, and Prognathodon. These are just three of the many iconic members of the Mosasaur family. And when you have this many household names, you know you are doing something right. The Mosasaurs were one of the Late Cretaceous’s most dominant forces, and were able to rise to power during a time well-known for ferocious monsters. So, how did they do it? And how did they retain their hold over the oceans and seas of the Late Cretaceous?
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Love it how that little lizard was like: "It's free real estate" and jumped into the sea to turn into one of the biggest apex predators from the waters ever.
Dream big or go home.
Little lizard enters the water- there's sharks, big and nasty... and little lizard goes "you wanna f*cking go?!"- and grows to the size that gives me nightmares
Therapist: "Elvis plesiosaur isn't real, it can't hurt you"
Elvis Plesiosaur: 1:54
There's a reason why Late Cretaceous seas were called "Hell's Aquarium"
"What Nigel is about to learn about prehistory - is that no matter how bad things get on land, the one thing you should never, ever do is get in the water" - Chased By Sea Monsters narrator
MY PEOPLE
Who calls it that lol?
@@andrewscoppetta4944 Chased by Dinosaurs fans :)
@@ExtinctZoo ok
Considering monitor lizards still exist, it makes one wonder if a mosasaur type creature could evolved to dominate the seas once again sometime in the distant future.
They already do It. Just look those aquatic monitors. Someday, if humans don't destroy everything before, mosasaurs will make a come back.
Phytosaurs and crocodiles have similar niche but they are completely different creatures so yeah it’s very likely.
Evolution is unpredictable
@LimitbreakerAdam i hate orcas
Would take a lot. There would have to be sufficient pressure on land to flee to the water meanwhile the shallows would have to be sufficiently safe to make it worth while.
Aigialosaurus dalmaticus is the most famous member of that family. It's from Croatia. As a Croat, I think that my country has a lot of potential for paleontology (dinosaurs, marine reptiles, cenozoic mammals, human evolution), but we don't invest enough in it.
I went to Croatia once, i belive this man is right. the place is sedimentary soil (carstisb formations, caves etc.).
Lizards seem to have that perfect blend of traits to rapidly grow and diversify.
Probably mainly due to fast reproduction in warm climates
As Jeff Golblum once recalled from his script ; life finds a way. Profound stuff from a movie star.
Amazing video. If it weren't for the extinction even. It is very likely they would have dominated for more millions of years
Could you imagine if one species did survive? One is enough to diversify. Especially in a rather empty sea after the extinction event. They would quickly take over again. An whales would have most likely not evolve. And even if they did. They would be nothing more than prey to these beasts!
Literally a sea monsters. It would probably have stopped the sea expansion for humans too. Slowing down our progress in spreading
not to say there were not giant sea creatures known and some imagined humans had to cope with travling the seas to new lands. but yes, it it were known mosisaurs could get ya, things would be different now. lol
We actually have a good idea of what killed off the ichthyosaurs and pliosaurs: the Cenomanian-Turonian Boundary Event. (the last pliosaurs lingered for a while but their reign was over by then).
This is also what put an end to all pterosaurs with teeth, the carcharodontosaurid allosauroids (which, like the pliosaurs, did survive for a bit afterwards but were no longer successful), etc and allowed the rise of tyrannosaurids and azhdarchids to dominance later down the line.
But what *was* that extinction event? What caused it?
@@juniperrodley9843
Volcanism.
@@juniperrodley9843 Flood Basalt Volcanism. Specifically the Caribbean-Colombian-Gorgona and Madagascar LIPs (Large Igneous Provinces).
They were close to eating out everything in the ocean. What an amazing group of species, almost everywhere.
These guys evolved a very similar body plan to one of their successors, the whale Basilosaurus. If that asteroid never hit, I wonder if mosasaurs would’ve taken any forms reminiscent of modern cetaceans, as the ichthyosaurs evolved to look quite similar to dolphins.
The aquatic Megalania
my favorite part is when the tylosaurus said "do you want free dino nuggies?" then ate the Hesperornis and then said "AWDDEAEASEWAEE"
I have 3 sequential mosasaur teeth still attached to a piece of their jawbone and I treasure them above everything else in my humble collection.
Truly one of the marine reptiles of all time.
A pretty good video, as a mosasaur researcher I’m impressed with this video. A few small errors but nothing outstanding or major
Anything specific?
2:07 Dragons taking over Cretaceous skies
Don't give komodo dragons any ideas.
Awesome video dude. Your channel is great. Could you do a video on Prionosuchus and other Temnospondyls? Keep up the good work!
So do you thank it had a vipercated tung to taste its pray in the watter like modern snakes and monitor lizards?
This is speculative, but given that mosasaurs are varanids - closely related to snakes and monitor lizards - it seems likely.
Sea snakes still has forked tongue, so it's safe to assume they probably still have it and likely use it for sensing their surounding too
I think your script autocorrected to "nuance" vs "nuisance" @5:40 😄😄
great video!
Not the David Peters reconstruction 😬
since mosasaurs were basically the squamate version of cetaceans do you think there lower under sides look like a cross between a cloaca and a mammary slit.
Why would convergence to water include convergence in genitalia and reptilian orifices?
It would not have been a good idea to go for a leisurely swim if there were Mosasaurs in the same area as you were. A nice midday snack.
How many thumbnails are we gonna cycle through for this video?
5.8 more times
A Tylosaurus named "bonker" was potentially 17m long and 20~ tons! truly HUGE
For those who don't know, Bonarelli Event is another name for the Cenomanian-Turonian Extinction.
All good stuff.
The Aigilasuridae look similar to monitor lizards
I can say i'm a happy owner of two Fossil teeth of Mosasaurus in my collection
4:57 A "travesty"??
They was Mo'sasaurs then they became No-mo-asaurs.
How do we know all of this stuff?
strange how 90 million years ago both plios charcars and spinosaurids dissapered...like is there an extinction event we dotn know of?
5:59 much like this video 😭
Ichthyosaurs went extinct during the end of the Jurassic, much before the arrival of aigialosaurids.
Interesting, I checked a few sources and most, if not all, stated Cretaceous. I also found one study that stated that 8 lineages made it to the Cretaceous. You can also see that there are few genera that are stated to have made it to the cretaceous if you search them up like Maiaspondylus, just one example.
Ichtyosaurus didn't get completely wiped out until the Mid Cretaceous. Their diversity, range, and influence got significantly reduced after the Jurassic period, sure but there are still some species around
Pedro; wrong.
@@quakethedoombringer ichthyosaur diversity was higher during early cretaceous than late jurassic, but only fewer groups were thriving. Those groups mainly were the Ophthalmosaurs with animals like Platypteryginaes and such sub families.
Though, Ichthyosaurs mainly occupied few ecological niches and mostly were top or second rank predators of their habitat, which in result make them quite sensible to habitat modifications.
@@ExtinctZoo Interesting. Sorry for my mistake.
Aaaand orcas clapped them all to extinction.
Orcas > everything else
@LimitbreakerAdam yeah bro that’s what they do. Tbh they’re the most overpowered and intelligent animal on the planet. It’s a good thing they can’t walk.
So whales went through tvis too just much more succesful
Okay what if we just killed off predatory marine animals like sharks, orcas, seals etc.
Would this allow marine iguanas to take over the food chain in a couple million years and give rise to another mosasaurid like lineage?
no, just ecological disaster 💗
No as my guy said
@@SinethembaNgqiba Thanks for the clarification.
Guys only have 4 personalities when they turn 30
2:40. "Real cast" so... a genuine reproduction? Isn't that an oxymoron?
I suppose it's not, since a fraudulent reproduction would be something like piltdown man.
Bruce's Real Cast, as in, a cast of Bruce which really exists. Not oxymoronic at all.
@@juniperrodley9843 "Bruce's reel cast" just refers to when Bruce went fishing and used his reel to cast a lure out in the water.
Seriously though, what's the difference between "cast" and "real cast" in your explanation? Are you implying that "Bruce's cast" is a cast of Bruce that does not really exist?
@@chonqmonk A reconstruction of Bruce's cast, perhaps?
I still don’t think the T. rex can swim…front arms to small….no head support
mf have you ever heard of buoyancy
Tell me this is a joke.
Fun fact Bruce is located and was found in Manitoba
Which use to be underwater millions of years ago
I thought you said part of what made them so dominant was that they filled every size niche. How could there not be some that were small enough to survive then? Something more than just size had to play into their extinction.
Even if some small species survived, they would lose in competition with surviving sharks
The demise and total extinction of pliosaurs and icthyos was the main reason.