Irritator's New Mouth
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- เผยแพร่เมื่อ 12 พ.ค. 2023
- A new paper looked at Irritator, a spinosaurid from Brazil. It found that the mouth was much different from what we normally see in theropods. But it also starts the conversation on an irritating part of the fossil's history.
Read the paper here:
palaeo-electronica.org/conten...
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At this point we should just rename the entire spinosaurid clade to "irritatids"
LOL
Or Kevin.
time to rename it to weirdinosauridae
Agreed 💯
Quite fitting
spinosaurid try not to change anatomy every 2 weeks challenge (impossible!)
Lmao
Spinosaurids are shapeshifyers confirmed
💀
Oh no, science is challenging previously held knowledge what a disaster
@@Survivalist_Redo it's a joke, man-
Spinosaurids are the most utterly chaotic dinos.
I always find interesting how Irritator’s movement-tracking brain could help them eat pterosaurs when the opportunity presented itself. There’s a pterosaur fossil from the same formation with bite marks that match Irritator’s teeth. It’s just very unclear whether it’s a sign of predation or scavenging
Yeah, it would be interesting to see them today, just to figure out how they lived. Most other theropods seem so much more straightforward, but spinosaurids are wild.
We should only assume predation if said bite marks show signs of healing, as they would've necessarily been done to an alive animal
@@RaptorChatterIf they were used to nabbing fish on the move they could probably grab pterosaurs.
@@Anonymous-lv4di it’s still possible that predator succeed to kill prey instead of scavenging, that’s why it’s unclear. Healed injuries from predation or other fighting are possible only if prey/opponent survives.
A pterosaur who is fishing seems like a good opportunity catch.
“New evidence from Irritator may show that Spinosaurus could actually shovel schools of fish into its mouth by unhinging its jaw into a shovel and scooping them all up. This could also show that Spinosaurus could eat animals like Rugops and Carcharodontosaurus by swallowing them whole like a snake. Truly fascinating.”
Carcharodontosaurus grew to 45ft long nothing on earth was eating it whole.
@@johno1544 R/Whoosh
@@cursedbroly8576 oh ok sarcasm is hard to read online.
XD GOLDEN
dont give the vore fans what they want. paleontology
This pretty much sums up why I LOVE Spinosaurids, they are just so weird with adaptations found in no other Dinosaur family.
Same! They’re fascinating and so unique. I don’t see the numerous ideas and new findings as a bad thing at all.
You’d think fellows also interested in studying and learning would enjoy the trial and error process that is science!
This is actually present in pelicans. It's quite extreme in them, too. It's weird, but it isn't unheard of in the dinosaur clade!
@@catpoke9557 convergent evolution is a hellavu drug
@mikerude5073 looking at you, Krabs.
Spinosaurids finally entering the realm of anatomy i actually understand. That's an awesome asaptation.
Also im contractually obligated to say that snakes dont actually unhinge their jaws, they use stretchy ligaments to increase the flexibility of their jaws.
Oh yeah, I just meant there's not fused joint at the front of the jaw like we have. If I said unhinged whoops.
If it really was the case and their mouths opened like in the art at 1:52 then, The Isle's Hypo Spino would be surprisingly close to accurate lmao.
Imagine if the real spinosaurus had that kind of jaw, it would be badass
It's not what the paper says though, it's the pelican-like
I was legitimately worried for a moment that this is the conclusion they arrived at but thankfully it isn't.
Still, the awesomebros are probably already going crazy about this.
@@Daily-PE Just wait a few years, I'm sure someone will write a paper on that
@@tjarkschweizer They are. They're drawing art of it with its jawtip split.
Babe wake up. New revolutionary Spinosaurid Study dropped.
I really hope that someone will study the skull of Suchomimus and compare it to the one of Irritator, since both are spinosaurids yet their skulls look very different when compared to each other directly.
Am I the only one who looked at the thumbnail and thought of the Hypnos from the Isle?
You might need to spell check.
You are not. I honestly initially thought it was a spinosaurid meme lol
I literally thought _wait, Hypos can actually be a reality_ (and then I forgot about pelicans)
The art with the split jaw was a joke based on the hypers :)
Irritator is no longer only interesting for its funny name.
When you're hiking through Cretaceous Brazil and something keeps ransacking your camp, and nicking the fish off your fishing line, you know you're beset by an irritator. When it challenges you to a throwdown, you are ready to identify it at a species level.
That's what you need to catch fish: a fast bite, not so much a powerful one (fish "bones" are soft)
Fish bones are bones, why the quotation marks?
@@cosmopoiesecriandomundos7446Some fish have cartilage instead of bones.
@@cactusgamingyt9960 all fish have bones, including cartilaginous fish. Most fish are bony in general (Teleostei)
Yes I do like the pelican swallowing that just makes sense, you know nature. You look at a lot of fish eating birds and you see them do this with there jaws BUT I like the hypo spino/shin godzilla lower jaw split so I'm going to now see them doing that from now on.
You play the isle?
@@hollyevans7842 yep sadly lol
It would be cool if Irritator had a pellican-like pouch!
I mean this video technically says it does
@@turkey4802 no this video says it has jaws that can open like a pelican, he specifically states that it doesn’t necessarily mean it has a pouch.
@@dexaphobia8085 Oh I was confused sorry
Either way, I want to see an artist’s rendering with one.
I waited for you to make a video on this paper! Spinosaurid anatomy changes all the time.
Well it does explain how they were swallowing those large sized fish. Or similar sized chunks of even bigger fish/crocodiles.
Yeah I think a lot of people try and box them into fish specialist, whereas I think "small to medium prey specialist" would be more accurate
Yeah storks and herons, are probably the best modern analogues, maybe mergansers too depending on how well some could swim. And herons and storks are not too picky eating things like rabbits or mice as readily as they'd eat fish. And herons do like small crocodiles too, scale that to a 8m spinosaurud and I can see a 3m goniophilid being on the menu.
Great video, im from brasil and i like you take this topic of fossil robbery.
If you gonna make more videos of spinosaurids, talk about irritator and angaturama
If I get the chance or anything new comes out about the Brazilian Spinosaurs I'll definitely try to cover it!
Don’t forget Oxalaia if that’s still a thing
@@froggystyle9068 kinda yeah
It’s disputed because angaturama is very fragmentary
I’ve seen shin Godzilla. This is proof spinosaurs had atomic breath.
Whot... We really got a Pelican non-avian dinosaur ☠
The Isle predicted the future with their hypo spino
No they didn't!
@@tjarkschweizer got dang it, let a man dream.
@@Skyypixelgamer This isn't a dream. It's a nightmare.
@@tjarkschweizer true
@@tjarkschweizer ahhhhhhhhhhhhh
Nice video! It’s always fun to learn more about spinosaurids and in this case irritator
Next discovery will be that it actually had wings and beak and it was just a massive pelican, I don’t know how it’s possible that spinosaurid anatomy and composition is changed like every month or so
Thanks for bringing up the potential legal actions concerning this specimen. One of the things that burn me up is when things like this happen. I remember when the Feds swooped in and "appropriated" Sue from the Black Hills Institute, I was so angry at the government for doing that, it still angers me when I read any accounts of what happened...I know this particular case is quite different from Sue's story, and hopefully this get resolved so all parties involved are satisfied....
I just want a Spinosaurid that's like a Pelican at this point lol
irritator tries not to be irritating (impossible)
thank you so much for talking about scientific exploitation and giving this topic space. this is so important for authentic and ethical research; it's fantastic to know that this platform is being used to spread awareness on this issue.
My biggest wonder is wether or not this lower splitting jaw could’ve been a feature in other spinosaurids or if it was just irritator. Either way this is really really cool and when it comes to new whacky stuff like this it just furthers my love for dinosaurs and other prehistoric animals and creatures.
There was a comment about some of the bones in Spinosaurus skulls being similar, so it's possible they both had it.
I really like how you get into science ethics and how it really impacts the community. It's easy to consider paleontology purely academic but there's always more to it.
One of my new favorite studies, especially in 2023
And this video did the study very justice ☺
Props to everyone who work on these amazing videos
Thanks for the comment at the end, is really an issue here that we are trying to adress. Recently, was announced that Ubirajara will return to Brazil in july, so things are slowly starting to change for the better thanks in part to scientists like you.
They made the irritator a "the Isle " reference
That's insane
Pelican spinosaurid, now irritator is gonna be getting more attention from me lmao
What if pelicans were descendants of spinosaurs? That would blow everyone's mind.
That is so impossible that it would require literal magic to work XD
If Irritator or other spinosaurs are confirmed to have a pelican-like pouch, that would just be an example of convergent evolution, not of direct ancestry
@@maikgg-yp2cm Yeah, birds evolved from avian dinosaurs. All birds are dinosaurs but very few dinosaurs were actually birds.
I was thinking more along the lines of Shin Godzilla opening its mouth
The bit on bite force makes me wonder why crocodile's bites are so strong considering they're quite snooty, I don't know a lot about their biomechanics.
While they do have longer snouts, many of them have wider rear portions of the skull, which allows more muscle fibers to be packed in for a stronger bite. They also have a slightly expanded rear portion of the skull, which let's the muscles act closer to the tip (though still not super close) of the jaw.
@@RaptorChatter Thank you for the explanation!
So the Isle's Hypoendocrine Spino unhinging it's jaw was accurate? Neat!
Not quite. The bottom part wouldn't split open, but the back half would get wider.
@@RaptorChatter ah, inner part of the jaw getting wider but not the front part of the jaw getting wider when it opens it's mouth.
Thanks for highlighting this paper! Missed this one.
No worries! Also assuming you're the Adam Pritchard from the Virginia museum it's great to hear feedback from professionals! So thanks!
It is nice how you approach the matter and make it clear how you feel about the smuggling of fossils, so as a Portuguese speaker I follow a small selection of paleontologists that are also youtubers and they always bringing new researches to the public and addresses matters such as the fossils that are being disputed in a way that everyone can understand but in very long and in depth videos, pointing out each topic of the matter.
I strongly recommend that you hit them up in the channels: "Canal do Pirulla", "Zoomundo" and "Colecionadores de Fósseis", since every one of them have worked/studied abroad in U.S. or European universities. If you eventually do so and need someone to help translate things, I'm here for it.
*colecionadores de ossos
heLLO New fav paleo youtuber
found your channel about a week ago- Your content is really insightful, entertaining, and easy to follow; as someone who has interest in natural history but not enough to actually study it especially HAHA
and you mentioning how the global south gets exploited like this constantly, most ppl I've seen really don't talk about this stuff the way you did here. So glad you did.
10/10 love your videos
Thanks!
i just heard abt this yesterday too, thanks for covering it!
How can u be so clear? Love ur videos!
Thank you for such a great dive into this topic! 🤘🦖
Irritator when he spread his jaw remind me of Shin Godzilla 2016
There is Ubirajara jubatus as well that was stolen from us. It's very sad, some people say that we can't work here in Brazil, that we lack the qualifications, but man, there are so many specialized people here that are willing to study this fossils, and Germany just won't return any of them to us.
These*
Yeah people who say that Brazil shouldn't have them aren't arguing ti send the Louve to Madagascar after Notre Dame burned down. The issues Brazil has had in housing fossils are also rooted in the same issue if exploitation, just financial exploitation instead of scientific.
As an irritator fan i see this as an absolute W
Great video as per usual!
Thanks!
There is a very similar ethical quandary when it comes to Assyriology (the study of Sumeria, Babylonia (aka Sumeria but later), and yes, Assyria). It is ofc, illegal to take any artifact (usually in this case cuneiform tablets) that was excavated after 1970 out of its country of origin. This... doesn't tend to stop it from happening and especially during times of war, e.g. the Gulf War, a ton of stuff was illegally excavated and smuggled out. The conundrum is that there is no way to *prove* that any given artifact was illegal smuggled after 1970, so there are very wealthy people with massive private collections of these objects of great scholarly value. The real ethical challenge for those in the field is whether to study/translate these items when offered the chance by these private collectors.
next thing you know the next spinosaurid is gonna be a dragon 💀
5:11
Pelicanosaurus irritator? That would be a funny nickname.
Hey, it's the annual change of look of the Spinosaurids, I wonder how much time before all reconstructions will show a shovel-mouth Spinosaurus XD
The paper is currently only available with a password because they are " currently conducting an internal review and are in communications with various parties".
It is available again! I can't really tell what's changed though, the ethics statement at the end doesn't seem to have changed much if at all, so it may have just been discussion on the ethics of it, and whether or not to keep it in the journal.
Basically the shin of spinosaurids
Thank you for bringing up the issue of sovereignty over fossils. Only good can come from spreading knowledge and intrigue in natural sciences in places often neglected or exploited.
Very informative video
3:44 Caiman is really rethinking its life choices
ah yes.. IRL shin godzilla
I’ve always loved irritator
Finally!!! A spinosaur with the mandible of an alligator!!!🙏🏼😁👍🏼
Very interesting! Great video Raptor and thank you for covering this! Love your videos! Keep up the amazing work my friend! ❤ Hope you are doing well as well as everyone who reads this!
For all the mothers in the comments section: Happy Mother's Day! ❤
Ah yes, the Snake-oh-saur. He has finally emerged!
Great video as always! Spinosaurids just keep trolling us 😂😂😂
I guess the hypo spino from the isle really could have existed
I like spinosaurids mainly cause I like their skeletal shapes. Especially that skull.
Irritator is one of my favs too
From an ornithological perspective, this makes a lot of sense! There are many birds (though not as exaggerated as pelicans) that have jaws that open outwards in order to eat fish! Some examples include cormorants, gannets and even herons!
THAT IS SO COOL!!!
I was literally thinking about if spinosaurids had a pelecan like jaw today. Turns out I wasn't the only one
I love how spinosaurs are usually one of the most unique group of dinosaurs
The kamakura-san
It's a routine for Dinosaur enthusiast hearing new spino form
So it’s the hypo spino but smaller
I cant wait to see this finding immediately applied to Oxalaia since its seems like every spinosaurid findings is just also applied to ox, at this point its just a mishmash of spinosaurids maybe we should just rename the entire clade to "Irritatids"
Iritator is my fav dinosaur thanks to this paper
Its nice to hear that my favorite dinosaur is now very different in its head
Like Shin Godzilla!!! Heck yeah, i live for things like this omg
"This isn't even my final form"
I personally think that the jaws did split, but still have very limited movement when opening compared to snakes which can move their jaws when ever whether their mouths are open or not.
most prehistoric lifeforms will still remain mysterious and arguable to modern humans despite ages of discovery and research
I’d probably die before scientists figure out what spinosaurids are like.
It was reported here in Brazil that this article will be withdrawn from the magazine due to ethical issues involving the fact that the fossil was illegally removed from the country
It looks like it's back up, but it was down for a while. I imagine the authors and the journal might make a more direct statement.
they loved the hypo spino from the isle so much, that they turned it into a real dinosaur ,thats what i call dedication
Probably less what we see and more like pelican but not pouch. Probably evolved to swallow large fish
shin godzilla but small
I wonder if they could have carried their young croc style. If they did have a (small) throat pouch to swallow larger prey they would definently have room for one or two babies.
Hey, just wrote a paper for my class about this skull and the anatomy of Spinosaurids!
If Deinocheirus is essentially a Giant Duck, and Irritator's like that of a Pelican, presumably, then what's the goose?
oh god, ok im glad the thumbnail was just a red herring, a snake jaw spinosaur would ruin my mental wellbeing
Fast but weak bite, it's a snake that never lost it's limbs!
Spinosaurids are so fucked up I love it
this took unhinged to a new level.
Appreciate the back story on the fossil and paper. I can understand the author's reticence to criticize the institution giving them access to the fossil, and acknowledging there's an issue is better than just ignoring, I guess. I wonder out loud if studies have been done on the bite force under water...
It’s unlikely that their jaw splits like most people seem to think, it is more likely that it’s jaw is flexible and widens at the back of the jaw, allowing large fish to easily slide down it’s throat with minimal difficulty, while also allowing it to have an effective bite (despite being weak), rather than it’s bite being weakened by the jaw separating into two halves.
I like to believe a spinosaur fan found out that spinosaurids were just big ducks and doesn’t want to admit it
Hummingbirds have lower jaws that expand as they open them
The Isle’s H-spinosaurus doesn’t seem so far fetched now
It could have been an egg eater, I mean there is a modern reptile who's whole purpose is for just that. To the point it's spine developed I think serrated edges to slice open eggs passing through it's body.
Spinosaurids are so awesome
Next they're gonna say that the irritator shot out a purple atomic beam.
If these dinosaurs were alive we probably wont be able to recognize them considering how much they change