Ibirania: The Exceptionally Small Sauropod Dinosaur From Late Cretaceous Brazil
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- เผยแพร่เมื่อ 12 มิ.ย. 2024
- Ibirania was an exceptionally small sauropod dinosaur, with an estimated length of only 5.7 meters. Whereas most sauropods of comparable size lived on isolated islands, Ibirania lived on mainland South America. Its discovery has shown that Sauropoda was much more evolutionarily dynamic than previously thought.
Thank you to the themattalorian for narrating this video.
Sources:
www.researchgate.net/publicat...
www.nature.com/articles/s4159...
www.sciencedirect.com/science...
www.sci.news/paleontology/cre...
00:00 - Introduction
01:21 - Discovery
02:36 - Size
05:27 - Predators
07:12 - Anatomy
10:37 - Paleopathology
11:38 - Conclusion
12:24 - Outro
Sauropods were such magnificent creatures. I remember a Brazilian palaeontologist theorising that Ibirania might have lived in patches of vegetation across a larger desert and travelling between similar patches during a monsoon season, like it were islands on a shallow sea. An interesting idea, not sure if it could ever be tested though.
No, not the Spanish J to a Portuguese name...
That would be so cool! I hope that in the future we will be able to know more about these ancient creatures!
Since when did the make sauropods cute?
@MegaRaptorEN
Reality-wise: Early Sauropodomorphs like Mussaurus & Eoraptor
Media-wise: Land of the Lost & The Land Before Time
Just some examples.
They always have been cute.
They weren't made, they appeared
That implies there is a time you didnt find them cute.
I believe we term that heresy 'round these parts.
Pppppll😅😊😊😊😅p😅😅@@hcollins9941
I had heard of Ibirania when it was first described, but I had no idea how much of an anomaly it was for a dwarf sauropod or that it gave us the first fossils of parasites within their hosts. This is why I love this channel; I always learn something new and interesting!
If these guys never went extinct I’d so have one as a pet
Even at that size... good luck feeding it. 😂
You'd need a zoo sized enclosure
Have fun with all the poop.
We have to wonder what would have happened to the dinosaurs if the Chicxulub impact hadn't happened. It's becoming clearer that it isn't the severity of the environmental devastation that is principally responsible for mass extinctions, but the rapidity with which those changes take place that is. Animals and plants can adapt to conditions of extreme heat and cold, dry and wet, if they are given the time to do so. Perhaps, if they had had a few more millions of years to shrink in size a bit, dinosaurs other than birds might still be with us as part of modern fauna.
True
Very interesting. I'd never heard of these before. I like that you've bucked the trend and actually have a human being narrating your videos. Good job.
My favorite cryptid animal as a kid was Mokele-mbembe, as I've always loved dinosaurs. The idea that maybe a small group of sauropods had somehow hung on deep in the jungle just completely captured my imagination. I dreamed of leading an expedition to find it lol
BABY
MAN
There are reports of surviving dinosaurs from the Amazon region of South America as well. So given this fossil discovery some dinosaurs might have made it.
Thank you very much for this
Another amazing video!
I hate to be pedantic but I gotta say it: it is pronounced EEbirania, with the "ra" being the tonic syllable
Yes finally!
Outstanding video brother!
A friend of mine don't see the appeal of Paleontology
... But i mean, a handful of rocks taught us this much ! There're millions of years's worth of knowledge laying under our feet ; just imagine what they can teach us !
I’ve got some great ideas and some great suggestions for you to make TH-cam Videos Shows about some more Prehistoric Extinct Crocodilian Species, such as Lazarussuchus, Plesiosuchus, and Metriorynchus adding that to the episodes on the next Saturday on the next Chimerasuchus coming up next!!👍👍👍👍👍⭐️⭐️⭐️⭐️⭐️
Please make a video about trassic era of India
Are you Indian? If not then "trassic💀" But if you are then I'm sorry and I hope you learn the Grammar of English
Brilliant video once more. Just didn't quite get how it evaded predators, despite the arid environment.
You know, rather than the air sack structure being vestigial in Ibirania adults, it strikes me as more likely that in their arid environment that was hot enough for ectothermic predators to become dominant in the ecosystem, the thermoregulation function that would normally allow them to survive despite extreme gigantothermy was coopted to allow sauropods to survive with smaller sizes but greater ambient heat.
Great work once again!
Very interesting. Thank you
Another great video 😎
Imagine an enviroment so harsh that the land crocs start fighting their way up the food chain. Dinosaurs were pretty crazy when it comes to efficentcy and being able to live in some hot and resource scarce enviroments. As a mammal I shudder to think of the conditions that forced dinosaurs to be that small, and for the land crocs to become so dominant in the enviroment.
I wouldn't mind see those small dinos be brought back to life.
You know with all of the “tiny” sauropods such as Ibirania, Magyrosaurus, and the Ecuadorian Yamanasaurus. I really wish that somehow one of these tiny little guys could have survived into the Cenozoic. I mean they are the size of Cattle or Giraffe’s so they aren’t small, but still the fact that some sauropods were adapting to fill similar niches to that of hadrosaurs is certainly interesting. Imagine if a lineage of these guys survived into the Pliocene when the America’s collided. It would have probably led to them filling similar niches to that of Mammoths and Mastodons only bigger. Not by much but definitely bigger, like Paraceratherium sized animals regularly just walking around the Americas and possibly Eurasia.
Giant #1: Why, he's barely enormous!
Giant #2: He's merely huge!
Ren and Stimpy: The Littlest Giant.
I subscribed
Aqui é o Brasil tropa
I wonder how fast they grew up, perhaps them reaching such a size made them more abundant or easier to tolerate losses
trading size for number as a survival strategy ?
Can u make a video on taxonomy/taxonomic ranks?
Some of the most sauropod rich formations there are can be described as arid or semi arid, such as those in North Africa and South America during the cenomanian. The Baru basin must have been something else entirely if it was that scant with resources that the sauropods could not rely on great size to get then through the hard times. It must have been a brutally harsh enviroment.
Interesting idea that aridity alone could not explain Ibirania's small size. I wonder if the size difference between Ibirania and the next smallest saltosaurus is significantly greater than the size difference between Namib desert elephants and African savannah elephants.
Well my thoughts are this: sauropods gain giant sizes to acsess more food resources and dinosaurs tend to get big in harsh but seasonal enviroments because they are then able to carry the stores of fat to get through the hard times.
If the hard times are all the time and resources are always scarce you don't get giant, you become a desert pygmy because the enviroment can't sustain breeding populations of giant dinosaurs.
Following this line of thought: Every other dinosaurs specues in its enviroment were smaller than elsewhere so it becomes smaller to fulfill its own niche and not compete with the pygmy titanosaurs.
Well my thoughts are this: sauropods gain giant sizes to acsess more food resources and dinosaurs tend to get big in harsh but seasonal enviroments because they are then able to carry the stores of fat to get through the hard times.
If the hard times are all the time and resources are always scarce you don't get giant, you become a desert pygmy because the enviroment can't sustain breeding populations of giant dinosaurs.
Following this line of thought: Every other dinosaurs specues in its enviroment were smaller than elsewhere so it becomes smaller to fulfill its own niche and not compete with the pygmy titanosaurs.
Well my thoughts are this: sauropods gain giant sizes to acsess more food resources and dinosaurs tend to get big in harsh but seasonal enviroments because they are then able to carry the stores of fat to get through the hard times.
If the hard times are all the time and resources are always scarce you don't get giant, you become a desert pygmy because the enviroment can't sustain breeding populations of giant dinosaurs.
Following this line of thought: Every other dinosaurs specues in its enviroment were smaller than elsewhere so it becomes smaller to fulfill its own niche and not compete with the pygmy titanosaurs.
Well my thoughts are this: sauropods gain giant sizes to acsess more food resources and dinosaurs tend to get big in harsh but seasonal enviroments because they are then able to carry the stores of fat to get through the hard times.
If the hard times are all the time and resources are always scarce you don't get giant, you become a desert pygmy because the enviroment can't sustain breeding populations of giant dinosaurs.
Following this line of thought: Every other dinosaurs specues in its enviroment were smaller than elsewhere so it becomes smaller to fulfill its own niche and not compete with the pygmy titanosaurs.
9:41 I do t think the spots are plausible on furless sauropods but otherwise this is one of the more aesthetically pleasing paleo-paintings I’ve seen in a while
There are modern reptiles with spots, so it is plausible.
@@chimerasuchus That's obviously true, not sure why I didn't think of that, in fact this author may have modeled it after the yellow-spotted monitor lizard, however it still doesn't quite look right to me, whether the way it's drawn makes it look like fur or whether the pattern doesn't look right on such a large animal, I'm not sure
@@chir0pter I guess it was because it is different from how dinosaurs are typically reconstructed.
Since the air sac system made the bones lighter and this animal was rather short, do you think it was relatively fast also?
Oh yeah: "just 6 metres" and "just 2 tons", positively tiny!
Sauropods redefined what it was to be big.
Nice but could you make a Video on Furucatoceratops the new Ceratopsian of 2023 if you can
Dinogoats
I wouldnt be surprised if it had some odd adaptation for defense that wouldnt fossilise. Think a skunk's spray, the in-taken toxins of some birds, or the quills of a porcupine.
Could the smaller sauropods Gallop or run?
Perhaps a tiny sauropod could use poison to protect it from therapods. Imagine tiny poison sacks all throughout the skin waiting to be bitten and popped. Or perhaps they just ate something toxic and built it up like a monarch butterfly does. Or what about quills that made them look like porcupines. Or some kind of chemical weapons like a skunk, or nasty llama. They had some kind of trick, but what was it?
Most likely it was just aggression.Its group has armor,so it could afford to be very aggressive.
Think of it like the cape buffalo of the cretaceous.
Thier close relatives were covered in osteoderms. That seems likely for them as well.
Espinas from Monster Hunter
11:15 - Plague of Madness 😟
I miss the old narrator
I miss the nasal voice 😢
Dwarf titanosaurs? Bit of an oxymoron.
Woody
Look I'm coming in defense for the little guys, every one understands that Amargasaurus, Brachytrachelopan, and Nigersaurus muscled beside some very tough predators in their ecosystems. So why are we handing this much credit to another "Fern-Gully" sauropods rather understanding what should have realized?
It's pronounced "ee-bee-RA-knee-uh".