The Tail of Spinosaurus - A 2020 Revelation
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- čas přidán 27. 08. 2024
- Spinosaurus is undoubtedly one of the most fascinating and bizarre non-avian dinosaurs, and a new paper published by paleontologist Nizar Ibrahim and colleagues has revealed that Spinosaurus was even more aquatic than we had previously thought, even with features such as the high nostril positioning, short legs, and dense bones, possessing a fin-like tail which would have allowed Spinosaurus to propel itself through the water. Debate over the tail was of course not far behind, and this video will discuss some of the peculiar features of the tail that have yet to be thoroughly solved, and will likely be discussed for quite some time. I hope you enjoy!
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Jurassic Park: the spinosaur was a bipedal killer machine
Real life: *big tadpole*
I mean, if you were a fish in the kem kem you'd probably think it was a killing machine!
They would have been fearsome predators!
Darius Tănase
It’s a giant tadpole with teeth.
Show it some respect!
@@equarg That was like Alan Grant scaring that fat kid at the beginning... "Turkey, huh?"
I still wouldn't row a boat in the same river with this tadpole.
My favorite dinosaur, because it never, NEVER, stays the same.
Will be interesting to see what will be revealed with future descriptions and research.
@@HenrythePaleoGuy Agreed.
My favorite dinosaur since jurassic park 3, still is
BREAKING NEWS, SPINOSAURUS HONKED AND HAD A PELICAN POUCH.
50 years from now it'll just be a beyblade
spinosaurus: this is not even my last form yet . next is wings and laser canons
And the fact he can become like a non-existent Jurassic Park Velociraptor bullshitter too when he feels like it.
shin godzilla evolution
Ark theme intensifies
FREAKING LASER BEAMS ON THEIR FREAKING HEADS ( DR. Evil voice )
Sounds like a yugioh card. Dinosaurs don't need another boss monster
Just imagine the species we will never find fossils or evidence of
The diversity of life
Tons and tons of it. At least what we do have is infinitely fascinating.
I know, it's so sad. We'll just have to hope time travel will happen haha
@@HenrythePaleoGuy but (at 1:30) regardless if the recovered (or not) fossils get destroyed or not, the animals ARE still EXTINCT
I have my reconstruction of spinosaurus has a non-fossilized creature living on it. they are a species of rhamphorhynchoid that managed to survive to the cretaceous it's like those birds that eat parasites my idea is that spinosaurus would spend some of its time in the mud it could be resting or cooling down during the dry seasons which would also bring it to land to scavenge but it still has to defend itself against Carcharodontosaurus anyway the mud would contain a kind of parasitic worm that lives under the skin of Spinosaurus and its very close relatives the pterosaurs which spend most of there lives on the spinosaurus feed on the worms as they can feel them crawling in its skin
@@jimmyshrimbe9361 Time travel will be most likely possible but we would only be able to travel in the future, the reason being simple, let's say you build a time machine now, in order for the machine to make you travel through time, it has to exist, in other words, if the machine is not existent, you can't travel, so you can only travel from the point you made the machine forwards and backwards to the point you've made it, I would love a time machine that could go back in time but it seems impossible
"The skeleton is too strange to be natural"
Therizinosaurus and Deinocheirus: **LAUGHS IN STRANGENESS**
Strange animals indeed!
even their names are weird
Tell that to the platypus
@@auxnull I play ARK so these names aren't wierd to me
The Concavenator concurs
Hippos don't have any evolved trait for water propulsion, but they can move underwater pretty good. Spinosaurus could have used the same method as hippos the tail could aid in both propulsion and maneuverability.
That is true! More will be revealed and understood as we gain a better understanding of these animals.
Appearantly the hippos don't even swim, they like bounce in the water with there legs, I heard that somewhere, I'm not sure if it's true though.
FlameTheWolf 777
Yeah, hippo’s have a negative bouyancy, so they sink, but because of their shape, theyre able to run underwater, and jump up.
@@vesuvius115 if spino really moved in the water like a hippo, that would make their spine a kind of barrier to prevent fish from going past it
Think about how light you feel in water, it's almost like no gravity so a big animal like a hippo or spino would be able to catapult through water like a torpedo 😱😱😱 Terrifying
Spinosaurus is becoming more and more to be one of my favorite theropods. Its history of being understood is arguably the most compelling story in Paleontology. From a generic land carnivore with a sail, to an oversized Baryonyx, the controversial quadruped, now we're getting ever so closer to understanding the animal.
It challenges us to think differently when we think of theropods now. I sometimes see people complain that it's not cool anymore, in which they couldn't be more wrong. Spinosaurus for as weird as it is, it was great at doing its role in the Kem Kem ecosystem. I can only wonder if its phylogeny will make us change how Spinosaurids are related to each other.
Only idiot JP fans would consider the new spinosaurus "uncool".
@Drake Petty I too welcome our Crocoduck dragon winged fiebreathing overlord.
@@Drheims “Crocoduck”
Spinosaur is just becoming a lagiacrus
The point of a puzzle is to put it together the right way, do these people get upset at jigsaw puzzles?
Poor Spinosaurus , always living through a identety Crisis!
but at least it was pansexual
To be fair, it's like trying to find out about One Direction music by collecting calendars, it's fucking hard.
Well, for a given value of "living."
@@jameshyman418 spinosaurs liked pans ?
@@speen9430 not funny didnt laugh
Cool video, can't wait for this to be outdated in a couple of years. Next up the claw is found to be venomous and then it'll have wings
I'll be there if anything does pop up. :)
Those will be BOMBSHELL discoveries!
@@mirandamusprime spinosaurs gets ww2 flashbacks
Now that I think about it, the revelation that Spinosaurus was aquatic could explain why it was so big. Look at the evolution of whales for example. Their ancestors got bigger and bigger as they became more aquatic.
Had Spinosaurus not gone extinct it would probably have evolved into a reptilian seal or whale
Or crocodilians like sarco
@@SleepySloth2705 he probably did, the latest time he appears in Fossil record was around 25mio Years before KP, enough time to evolve when only the sea was left
We'll never know
@@SleepySloth2705 Idk about reptilian
same with mosasaurus
People who watched Jurassic Park: Nooooo you can't just remodel my childhood!!!! all my toys and memories!!!!
Paleontologists: haha spiney boy go splash splash
More like:
Paleontologists: Noooo, you can't just ignore modern researches and tons of our hard work
People: ha-ha, Super predator go kill-kill
George Uferov more like delusional people. Not all people. People of intellect accept the latest knowledge and research. Einstein was true about his statement. Sometimes your genius is its frightening.. 🤣🤣
@@georgeuferov1497 lol hahahahha
@@mshaheerarshad communities are often judged by the most stupid people
i think it’s ok, since Jurassic park’s dinosaur like what dr wu said was never real dinosaurs to begin with. More like modern reimagined hybrids.
Wow, I'm absolutely flattered you thought my artwork was worthy to be part of this. Thank you so much!
No problem! Always seek to find the best art for these videos to make them as good as possible. :)
The spinosaurus is like a mythical beast that no one will ever know how this ancient creature looked like
"No other terrestrial ecosystem to date exhibits such a bias to large bodied carnivores..."
*Laughs in Walmart Food Court*
I read this comment right as that part came up
LMAOOO
@@nlb4329 I was gonna say that too
This beast came long ways from the first time society as a whole was introduced to it in Jurassic Park 3, and he just kept getting better
From simply a Theropod with a twist lost to WW2, to a next-gen Trex in JP, to a monster croc in games like ARK, and now a never-before-seen mashup of aspects made to be the first aquatic dinosaur, God I love this guy
A very interesting history of discovery indeed!
10:10 : "as well as a rectangle"
Ah yes, the rectangle, another species of organism known for it's aquatic lifestyle
This was likely used as a control group for the experiment.
@@ToastMac don't ruin the joke man
I can now imagine the Spino staying submerged in river waters, and along the coast, hunting fishies, and the occasional smaller land animal that wanders in, or too close, finding nice caves on the coast, or in swamps to sleep, enjoying his nice, amphibious type of live. Just being a weird crocodile.
Quietly vibing
Crocodiles are reptiles
@@ichigokurosaki69 So were dinosaurs, what's your point?
@Eeee Is there any proof in the fossil record that supports wingless dinosaurs having feathers?
@Eeee D r a g o n s
That animation sequence at the end, of the swimming Spinosaurus, is utterly captivating. Kudos to whoever labored over that!
Can you do a video discussing whether we should or shouldn't reconstruct Extinct species to look like modern species? Like how Mark Witton designed Therozinosaurus to look like a Pigeon and how the Documentary Dinosaur Revolution reconstructed Their Gigantoraptor on a Temmerick's Tragopan down to even having the same fleshy waddle and horns.
Sean Dewar I dont think there is a right or wrong way to do it. Its all about context. If they are trying to make an accurate reconstruction then they should probably go the safest route. But artists have a liberty to be creative with their designs. We have abstract art of modern animals too, and I don’t see nearly as much criticism in the way of those ones.
@@Kikizilla101 True but this does bring up the question of what are the odds of Extinct species evolving the Exact same traits of species that likely went through different environmental(Or in my example Sexual) pressures as living species to exactly look like said species. I've heard many call it lazy as well as inaccurate (Thogh in my opinion, as long as the design looks beautiful, I don't care but this question has been eating at me for a while)
well certain patterns reappear over and over again in nature, so it's reasonable that things that work now worked back then as well like with convergent evolution.
@Morgothos Did he? Can you link it?
Well, a lot of nerds are drawn to infantilized versions of things
The pun alone makes this video already great
Oof
Indeed
Aha I see what they did there. Thanks for pointing that out. Tale and tail
Hello
it's discoveries like this that reinvigorates my childhood love for dinosaurs.
As somebody who grew up during the time when we knew basically nothing about Spinosaurus but still knew deep down this was a rad af dinosaur, I can't tell you how happy it makes me to see Spinosaurus getting the recognition it deserves. Also, I have to wonder if a lot of these paleoartists had the same Spino toy I did when I was a kid, cause a suspicious amount of them seem to restore it as brown...
I feel like the orange tail test thing should have accounted for the size differences and width in each species’ tail
That is a good point. It would be good to see a 3D tail in action to see how the thickened base and thin length work in propulsion.
World:So... can you tell me what you look like?
Spino: no
Thank you for updating. We all need dinosaurs in these trying times.
More dinosaurs is never a bad thing! :)
Everytime someone loads a new Vid up about that Waterdragon, i HAVE to watch it
They are indeed very fascinating animals. I hope you enjoyed. :)
As a kid and teen I so badly wanted to be a Paleontologist but my parents didn't help with college so I ended up being a receptionist. I love watching videos like this. I will always kick myself for not trying college. I wanted to discover a new dino.
Totally appreciate your hard and difficult work putting these videos together!! I’m learning a lot and love the artwork, photos and illustrations! Thank you so much! Know please that you are SO appreciated and we are grateful for your efforts❤️🙋‼️
Thank you very much. I means a lot!
I saw a tweet recently that said that Ichtyovenator had a tail like this Spinosaurus as well. This gives me hope that other members of the spinosaurid family (Irritator, Oxalaia and Vallibonavenatrix) had one too
How do we know Baryonyx and Suchomimus didn't have tails like this?
@@maximaldinotrap Enough of their tail vertebra is known to conclude they didn't have this feature.
Hell Yeah! Spinosaurus is a real life water dragon!
9:44
“What did you do at work today dear?”
“Oh very technical palaeontology things I won’t bore you with the details”
“......You were playing with plastic dinosaur tails again weren’t you”
“.......yes.”
Very, scientific... 😌
That fascinating to learn about. I love learning about Spinosaurus.
Spinosaurus is a fascinating dinosaurs to know about.
They are indeed! And more is yet to be described!
@@HenrythePaleoGuy is there any fossils of Saltriovenator Zanellai.
There are, although they are quite fragmentary remains.
@@HenrythePaleoGuy So that's why you can't make a video about it?
I can, although there wouldn't be too much too talk about. I'll look into it though to see what I can find. :)
So basically Spino's a giant crocodile, with a large sail on his back. 🐊
I like to think of the sail as a long dorsal fin now X3
@@durk5331 ;-;
it's combination of gharial croc and sailfin lizard
But 20 times bigger and way sharper teeth
A Spinosaurus?
**puts on fedora**
**gasp** Sperry the Spinosaurus!
*dooobie-doobie-do-ba-doobie-do-ba*-
He's a fully aquatic, 60-foot reptile of action....
He's a big bad river monster
Who'll never cease to amaaay-aaaa-aaaaze
He's got more than just that big sail
He's got a crocodile's mouth and an eel's tail
And the dino nerds all swoon when they hear him say
*Jurassic Park III Spinosaurus roar*
He's Speerrrry, Sperrry the Spinosaurus!
Dr Dimorfoshmirtz: CURSE YOU, SPERRY THE SPINOSAURUS!
*Spinosaurus noise*
@@HenrythePaleoGuy Ahhhh, a man of quality!
This was an excellent video! And you really did a good job diving into almost all the criticisms of the study, and you did it in depth. However, I think one thing you ought to have brought up was the older study of the oxygen isotopes of Spinosaurus’ teeth, which revealed it was not only less aquatic than crocodilians, but somehow even less aquatic than even other spinosaurs, which is very very odd, but is a severe contradiction to this “aquatic” lifestyle. Also the actual TAIL bones are not as described on Sailfish and Marlins, and even in your video you are focusing on the dorsal fin, which is not only the wrong part of the body, but it is also dorsally mobile separately from the body so they don’t make for a solid example for tail vertebrae that support Spinosaurus’ tail flexibility. This is a very very interesting find, and i cant wait for us to learn more, but I personally think that this “fully aquatic pursuit predator” is an extremely premature conclusion that has quite a bit of contradicting evidence. Keep up the fantastic work dude!
While he zoomed in on the dorsal, I think the argument was intended for the rays in the caudal fin. Other than compliance, the spines supporting the fin breaking under its own drag has been brought up a lot. While I'm not sure it scales up perfectly, I think the point was that ray-finned fish don't have this problem.
Northropi Thats a valid point. That may have been the intention there. My point still stands with those particular fin vertebrae however, because sailfish are able to move each of these vertebrae independently as they can fold them in and fan them out, act more as a separate appendage. So while the comparison still is not a solid one, but I do understand why he might had decided to focus on the dorsal vertebrae. Though I would still point out that he verbally refers to the tails of these fish, so that part can still be questioned.
You also have to wonder what the point of that tail shape would be if it weren't aquatic.
Also, assuming we're talking about the same study, I think you're somewhat misrepresenting it by saying it concluded it was "less aquatic" than other animals. That study specifically supports the semi-aquatic lifestyle of spinosaurus.
What food does it eat?
Me: exceptional kibble..
Use Cooked fish meat and narcoberries
@@pugasaurusrex8253 i think its better to use cooked meat and punch it when its about to get up i tamed a level 300 with this method
@@Villosa64 The less damage you do to a tame the better
@@themop7007 yo thanks i played since early access and didnt know about this and also that i forgot to write "its a joke" so idiot understands
Next Discovery Spinosaurus specimen had wings
An it breathes fire.
Next discovery spinosaurus had nipples and boobs
@@screamingmimi6660 Furries: It’s free real estate!
Next discovery: spinosaurus can fire lasers out of its eyes
This Dinosaur is so interesting to me, it's been my favorite Dinosaur since I was like six years old, before the new 2014 study's, I'm 15 now and I love that this dinosaur has these unique features, flat and webbed feet, the new tail fin, the shorter legs, the long arms and claws, the narrow snout, high nostrils, the crest, the odd sail, and the body suited for diving and swimming.
A very strange animal indeed!
@@HenrythePaleoGuy Indeed, also the short leg aspect of Spinosaurus is still a debate and in personal opinion I believe it was both, switching when near water to get closer to fish while being on shore, as the tail shows, it most likely couldn't keep up with some fish, but being slow and unmoving allows it to trick fish to coming close, though I still think it hunted in water, the bones just don't seem dense enough to hold such weight for so long, that's my opinion from what I've seen, yes Spinosaurus had denser bones than most, but I don't think the wrist and knuckles could hold the what, 23 ton animal, though, it just makes sense to me that something like that would switch as it most likely needed to use it's claws in occasionally defense from some other Predators during the droughts as it's bite is weak for what we know, but if it bit down, it's conical teeth never let go as it's built for fishing, but I love what Nizar Ibrahim has found out, I plan to keep following as they find more out of this Croco-Duck of a dinosaur.
Imagine like the Main Characters in JW Dominion Alan, Owen, ETC just managed to Escaped the Mosasaurus in the Sea caused they are now in a River. But then a Large disturbance in Water, a Large Creature with a big Spine Sail and Fat Tail.
Alan: Oh not Again…
Owen: Alligator!!!
Claire: What??!
Jeff Goldblum: My name is Dr. Ian Malcolm(Wrong Spelling?)
It's tail is made for spinning, he can spin really fast, like a beyblade
1950s: lizard with a lump
2000s: a bipedal killing machine
2020: weird looking tadpole
2028: Fully completed 🙌 "Spin... or is it"
It seems like Spinosaurus is almost an ancient platypus in that researchers have a hard time making sense of all the weird features and how they function in their habitats.
Thank you for making this! I love Spinosaurus and this brand-spanking new discovery makes me love it even more!
Same here!
How weird do you want to be?
Spinno: *Yes*
2030: Spinosaurus lived underwater
2040: Spinosaurus was just a big tuna fish
2050: Spinosaurus was gay
3030:
Spinosaurus had a foot fetish
3069: Spinosaurus is a flat earther
10:03 that last one really caught me off guard
Can we all give props to the quality of this video? Great work!
When I was a kid I absolutely loved dinosaurs, I had tons of books and toys. But as I grew up, I started being interested in other things, and dionsaurs were not a "part of me" anymore.
However, seeing this videos, learning new things. Destroying previous concepts and building new ones... Is just fantastic.
I don't understand the people saying "ew, it's not cool anymore!" Like, seriously? APART from the senselessness of rating a real animal based on coolness, these discoveries make Spinosaurus SO much cooler! Why would you want another T-Rex clone when the real animal was so much more unique and interesting?
It's the mythical monster effect. Dinosaurs are like mythical creatures from a bygone era to the general public. Also blame Hollywood too.
Spinosaurus: in 2021, i will have wings like butterfly.
I love this Dino, because people constantly talk about how it was probably some aquatic elite swimmer , yet it was probably doing nothing but standing knee deep in water.
Well that's given me something to ponder on Henry. Keep keeping us up with the times!
"2 strenj 2 b naturoll"
The scientific community said the same about the platypus
I dont even believe anymore that it even leave the water. And I am starting to think that somehow if it was on land,it was a quadroped , bc like 3/4 of it's tail is so thin and leightweight bringing it's center of mass in front of the back legs
But dont its front limbs not look like they'd support a quadroped?
Honestly spinosaurus seems even cooler now. Spinosaurus was always my favorite dino, and always will be even with all these new discoveries and changes ♡ Sometimes the fact that our understanding of spinosaurus is always adjusting makes me like spinosaurus even more. Dinosaurs truly are cool mysterious creatures that fill me with awe
"How Many Times You Have Changed Your Appearance?
Spinosaurus: *YES!*
I love spinosaurus, it's not my favorite dinosaur but it is my second favorite:)
What's your first
@@duk6157 Oviraptors, specifically gigantoraptor
@@dubbixdub4376 nice
Dubbix Dub nice
Lol same, my favourite is Carnotaurus and second favourite is Spinosaurus
The cool thing about the tail. Is that it changes how we thought Spino' reacted to the rising water levels.
Maybe they didn't starve inland.
I'm just loving all the new and lovely paleoart that floods my media platforms everytime Spinosaurus starts trending 🙂
I was a spino fan my whole life these facts confuse, upset and gratify me I’m grateful because this Dino has its proper body back but this is a breakthrough
I love the new spinosaurus. Jurassic Park was my first introduction to it, and I admit that was awesome. But this is so much cooler to me. It isn't just t-rex+, it was its own unique, fierce predator
I really wish that we find a full skeleton.
Giving how future expeditions may take place, there may very well be more remains to give us a better picture of the animals. :)
Agreed atm i feel this is a chimera due to how baryonyx and suchomimums does not resemble spino at all atm. Yes might be a different species but something just isnt right here.
@@erikbritz2637 there’s no evidence for that you just feel that way
@@CEOofAutism there's no evidence for either side because the only realistic evidence so far got destroyed during ww2
Incredible, I'm always fascinated by what we discover about ancient species that once roamed the planet.
That's an amazing, and amazingly detailed video. So good!
In July we’re gonna find out that spinosaurus also had laser eyes and telekinesis.
And it’s a winged dragon that breathes fire.
@@Drheims It's November and I can now confirm that we have discovered the Spinosaurus actually hovered, using its tail to flap like a birds wings
@@sunnydreams5482 Did it still breath fire?
His teeth and skull alone prove he ate fish...why is it taking scientists soo long to figure out...and he was huge...so big boy needs big protein..he lived the crocodile lifestyle.
I would kill for an illustrated book about the kem kem. It has captured my imagination so profoundly
can’t wait to see the next groundbreaking discovery that completely changes the way we view this dino, spinosaurus is a brilliant rollercoaster of information
We'll wait and see. :)
This is my favorite dinosaur 1. Because it always changes and 2. I want to see it in Jurassic world 3
It becomes more and more like Titanosaurus from Godzilla vs MechaGodzilla with every discovery.
Very true!
Great comprehension of existing data. Informative and well-done. Only thing missing: explanation of the big "sail" on its back. Dinosaurs could create their own body temperature, but cold water was a challenge. The sail contained many blood vessels where the animal could control their diameter. This way, while the animal was mostly under water, the sail above water could collect sun heat and give it to the blood (reduced blood vessel diameter)., or when the animal was on land it could also be used to release too much body heat (expanded blood vessel diameter), probably now looking reddish and less dark. The same strategy was used by other animals much earlier in Earth's history. Sails also functioned to impress and intimidate.
The last animation shown of Spinosaurus in this video should be shown
on a screen 📺 in a museum next to a full sized model or skeleton.
Definitely! It's a great video.
No one gonna talk about that ending tho? It's so realistic looking. I just wanna touch it ~_~
Considering the swimming stability purpose of the sail on this dinosaur's back strongly implied by this new evidence, do we need to take another look at Dimetrodon?
I don't think this implies the sail is for stability. Crocs are fine without a sail. But I do wonder if Dimetrodon were more agile than we are made to think. The idea of thermoregulation with the sail has lost traction in favor of sexual display, so maybe they didn't just sit around catching rays all the time. It may sound silly but I still like one of the original concepts of it working like an actual sail. Imagine how useful that would be, getting close for ambush attacks without even stirring up the water at all. Maybe that would have worked with both Spino and Dimetrodon sails?
@@inexister7371 Crocs probably aren't a good example as they rely heavily on their 'death roll' to end prey resistance so a fin/sail on their back would therefor interfere with getting to eat. They are clearly not occupying the right niche to gain any advantage - they specialize in ambushing land animals from the water, they are not chasing down fast or nimble aquatic animals in the water.
Besides propulsion, a flick of that tail would increase the speed of lateral strikes as an ambush predator.
Was one of my most favourite dinosaurs, used to love to hunt it in an old phone app where you could hunt dinosaurs.
You mean Carnivores dinosaur Hunter? If you are still interested, there's a channel known as Saurian Target that covers that series in great detail. :) It started out as a PC game first.
@@HenrythePaleoGuy omg yes that’s it thanks I’d love to download that again. Also I watched his videos hell nostalgic.
@@HenrythePaleoGuy my man Saurian Target
@@mlgodzilla4206 Definitely! He deserves way more attention for his videos.
Now I'm waiting for scientists to discover wing bones.
Yes
30k! Soon you’ll get to 100k like Ben! I can’t wait to see new paleo people in the comments! I’ll be able to say I’ve been here since 7k😎😎😎
I hope so too! Will be good to see more people on these videos, and hopefully, some can learn somethings that they previously didn't know of. Thank you for watching! :)
Intresting video, always loved the spino
oh wow i didn't know the tail was from the same individual as the 2014 neotype, that is crazy to think they were able to go back and find more of it, especially with how much of the tail they found.
Nobody:
Spino fans : *confused screaming*
true, I love the animal but it's just, confusing
Platapus fans : ehhhhh..... Ehhhh. Yes.... No.... Ehhh....
I always liked the ones with the BIGGEST TAIL! Hey Ain't that RIGHT FELLAS!
Scientists: "Spinosaurus is too strange to be natural"
Platypus: "Bitch please..."
Qu: uh oh we've been caught!
The animation at the end of the video was so cool
“Probably hunts on the shores”
Discovery: nah
Ok, I know you're more of an expert than I am, but the spino tail is in no way similar to a crocodile tail. If anything, it's more similar to a newts tail.
There isn't a single feature in spinos tail that is comparable to a Croc tail....
The tail is similar in function, not necessarily in its anatomy. Newt skeletons also don't show the crests that the tails possess, and therefore, the tail of Spinosaurus is different from even these animals. Anatomically, it is very different and unique, although the function of the tail would have been similar.
@@HenrythePaleoGuy The tail seems to me more like a basilisk lizard. Imagine something as big as a spino running across water at ya.
@@thehutch4823 made my day
It's superficially similar. The elongated vertebrae don't extend down the entire length, and the tails themselves are very different in their width.
Many many thanks to Ibrahim and his team.
So hear me out, what if, spinosaurs have a huge lump of fat on its back. That fat covers about 2/3 of the back sail thus making it more resilient and the whole creature more hydrodynamic. The rest of the sail would poke out slightly like fins for stability.
At least to me, the spinosaurs feel more like a sideway cetacean than a crocodile. It would be really interesting to see a sketch based on that
Shame that Jurassic World: Dominion, isn't going to pay attention to the science. Just look at the models from Jurassic World and Fallen Kingdom, paleontology advanced so much from the Jurassic Park films. Yet outdated depictions were still used. It is a real same with the Jurassic franchise still calls their creatures "dinosaurs". Despite the fact that they're chimeras. Far too many people believe the dinos from Jurassic franchise to be fact, blinding people from reality "old world blues" style. To the point that you can't use the excuse that hey are "just a films" because they have done serious real word damage on dinosaurs.
Also For the people who say that crocodilian or newt tails would fail if they had the design that Spinosaurus had. Arguing that since the tail got thin quickly, and the vertebra spines overlapping each other, compromising flexibility in said species. Keep in mind that just because Spinosaurus had many crocodilian like features, does not mean that is the only living animal we should compare it to.
Only analyzing the bones without taking into account the connective, muscle, nervous, and epithelial tissues, is not a reliable way to determine the range of movement. The features of its new tail are very akin to that of active swimming, pelagic, ray finned fish like sailfish. In short this new tail discovery more closely matches designs some of the oceans fastest swimming predators, rather than crocodilian and newt tails.
It most definitely has had a big impact when it comes to dinosaurs and their perception.
More studies will definitely have to be done to truely determine the effectiveness of the tail, since current displays of its effectiveness don't take into account what you stated above. A remarkable animal indeed. :)
Agreed with JP franchise having serious negative effects on dinosaur to the public. Many people see dinosaurs as mythical creatures and not as once living breathing creatures.
Also: "The DNA is altered" excuse is a good *in-film* excuse.
But because jurassic world is so popular and doesn't at least say that their dinosaurs are fake, this happens.
Don't get me wrong, I like the designs, but they have done damage.
And I'm not going to say anything about the first 3 films, because, apart of the Raptors, they had semi accurate dinosaurs for their time.
Also they are much better films but whatever.
Reminds me of a Moray Eel tail. 🧐
I would like to note that evolution is a process that takes a lot of time, and adaptations that change the entire environment the animal lives in (terrestrial -> semi-aquatic -> fully aquatic) take even longer to develop.
These observations of a laterally compressed tail on a spinosaurus come from a single individual. This is one set of vertebrae from one individual spinosaurus. There could be flaws in this design that were still being tested by nature and the process of evolution.
However, this laterally compressed tail with increased range of motion is still a potential sign that spinosaurus was on its way to becoming more and more aquatic, despite some potential flaws still being present.
It is clear that the tail *could* be used for propulsion, and the question of its efficiency could be both a question we are debating amongst ourselves, but also could have been a question nature had been proposing to the species when this individual lived.
Individual animals with transitional and/or experimental adaptations are a living test subject for their species, and it could be that we are viewing an individual who was slightly less than an astounding success, but was perhaps a step on the journey to semi-aquatic spinosaurus hopefully eventually being very well-adapted to its new niche.
I’ve honestly noticed this type of thinking a lot in palaeontology, that in order to justify a theory that an animal may have a different behaviour than previously thought, then you have to not only prove that it could do it, and should do it, but in order for your theory to be valid, the animal would have had to have been *amazing* at it.
For a relatable example of why I think this is kind of ridiculously silly, think of a human spine. Think of how many structural flaws there are, how many things can go wrong with it, how vulnerable it is, how much it hurts just randomly. If you were to reconstruct humans as quadrupedal first, live with that idea for a while, and then propose that uhh actually them being bipedal makes a lot more sense based on human limb proportions, future palaeontologists would probably argue that humans couldn’t possibly have been bipedal because their spines would be so inefficient.
Nature isn’t logical, it isn’t linear, and it honestly isn’t that efficient, and the thought that an animal must be amazing at something it needed to do regularly and that the species could have been relatively new to doing, is kind of absurd.
Indeed. Not too mention that more aquatic relatives can split off and live alongside their more terrestrial relatives for millions of years as is the case with whale evolution.
Wow! This is so exciting! This is why I love Dinosaurs!
Same here! Always something to learn about or discover! :)
So what was the sail for ? Crocodilians seem to get by without one.
Could maybe be thermal regulation without needing to leave the water? Sun yourself while floating rather than climbing up onto a bank
Natural solar panel?
My fave dinosaurs top 0 faves
10 sismasurs
9 sucomimous
8 baryonyx
7 dilophosaurus
6 miasura
5 deltadramis
4 fkuisurs
3 gallimimus
2 parasaurolophus
1 pteranodon
Honourable mentions
Allosaurus, brachiosaurus, igonadon, therzinosurs and spinosurs
Great list, although Pteranodon are not dinosaurs.
@@HenrythePaleoGuy I know pteranodon is t a dinosaur but 1 wold be micrator
A. Spinosaurus has gone from bipedal behemoth that walked on land and terrorized all other dinosaurs and theropods on land, to a 4 legged crocodilian-style dinosaur with a very defined spinal ridge and a flexible almost fish-like tail. And for it's rarity and illusiveness, I love it. Look forward to seeing more specimens arise, and gain more information on the species.
B. These f*ckers are terrifying and awesome in Ark: Survival Evolved because they can go bipedal at will, but move fastest on four legs...and submerge itself and swim like a crocodile/alligator, only faster.
Spinosaurus says: I love this crocodile tail
1:27 - I think you forgot to edit out a re-take. ;)
That's actually a part of the next sentence, although it does sound quite similar.
@@HenrythePaleoGuy My mistake.
moral of the story, if you still have any sympathy for the nazis for some reason, they destroyed Spinosaurus.
I really appreciate your detailed explanations and comprehensive source list
So seeing a Spinosaurus sail is like seeing a shark fin while bathing, only much much worse?