Dinosaur Profile: Ankylosaurus
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- čas přidán 10. 09. 2024
- Predating Armoured knights, ironclads, and tanks by 66 million years, this dinosaur took personal protection to the next level. A dinosaur profile on Ankylosaurus.
The Dinosaur Collection book is available here: books.apple.co...
Here are some of the resourced I refer to if you are interested.
Ken Carpenter reviews Ankylosaurus: www.researchga...
Discussions of armour placement: www.facetsjour...
Club physics: www.ncbi.nlm.n...
I speculate that Tyrannosaurus likely had a feeding strategy of grabbing prey by the head and shaking violently. Most prey animals living at that time developed head structures that would counter that strategy. Ankylosaurus went even further by being able to turn quickly followed by a tail strike.
Interesting, although Tyrannosaurus' bite could crush just about anything. No need for the shaking. We know that a Triceratops survived a Tyrannosaurus bit to the frill, but a hadrosaur was killed with a bite to the roof of the hip.
Interesting theory. Is it based mainly on head structures of prey?
I’m glad to see a video showing how obscure this otherwise famous dinosaur actually is.
This animal and it's family group is very underrated in my opinion, even Jurassic World and modern day pop culture turned this animal into a joke.
Love the Ankylosaurus! Very underrated when it comes to the list of favorite dinosaurs. This and Stegosaurus were my two favorites. Thank you!
1:25 Its so weird seeing Trex with a Allosaurus skull.
Loving the detail on its layers of armour. Also I appreciate the outlinging of fossil bias. Keep it up.
Its crazy how often Ankylosaurus are shown in media with those side spikes, though JW has the lore reason that they were designed to be attractions first and animals second so it works really well to me.
Really like your dino portraits - thanks a lot for sharing these!
This one of my favorite dinosaurs. How about a Utah raptor video!?!?
Love this channel
I just found your channel, super interesting and also very chill. Just what I was looking for!
When I was a kid, I liked books by Edwin H. Colbert.
However, as a child of 12 or 13, I had already concluded that Dinosaurs were --
1. Warm blooded.
2. Not reptiles, birds, or mammals, but a whole different class.
3. I could not understand how paleontologists would keep calling them reptiles,
when there was almost nothing reptilian about them.
4. I also felt that Pterosaurs were their own class as well.
Today, my thoughts are even stronger.
If Dinosaurs are not their own class, then they are birds.
For they are closer to birds than reptiles.
Its part of their evolution. It started at ROUGHTLY the same time as Jurassic Park that the reptiles to birds really took of. Before Jurassic Park, Dinosaurs were usually seen as slow, lumbering cold blooded creatures that dragged their tails (See the land before time). Jurassic Park, with its warm blooded creatures, really cemented the idea that they could move fast, and on two legs.
@@SImrobert2001 Disagree. I think Dinosaurs became warm blooded real early, at least during the Triassic. In fact, the very early thecodonts were likely warm-blooded, IMO.
{Thecodonts were at the end of the Permian, two-legged, and I think possibly warm blooded already.}
But, whether early or late Triassic, that process was done before the Jurassic.
I still maintain that the Dinosaurs were a class by the Jurassic, at least.
And that the Avian class was to evolve from them shortly thereafter.
@@craigkdillon I was talking about public perception. The public PERCEPTION changed.
Long have I waited for this day
I hope it was everything you hoped it would be.
@@palaeo_channel ankylosaurus lived 90 to 65 million years ago
@@alexandercolon941 The specimens of Ankylosaurus have been found in the Hell Creek, Lance, Ferris, Scollard, and Frenchman Formations of North America in rocks that are aged 68-66 million years ago. If you have news of older find, I would like to know.
@@palaeo_channel 65 million years ago not 66 million years ago😏
@@alexandercolon941 In 1991, the International Commission on Stratigraphy defined the end of the Cretaceous by a golden spike in Tunisia dated 66.0 mya.
Predators biting Ankylosaurus: "That one didn't go through!" "Not even a scratch!"
Ankylosaurus swinging its tail club: "They're immobilized!" "That hits hard!" "Threat neutralized."
According to one researcher, the tail might be used for more than defense or display but for stabilizing while digging. The club acted like an anchor to keep it steady.
I have never heard of that theory before. Can you point me to the research?
Allosaurus & Stegosaurus: Pass on our legacy…
Tyrannosaurus & Ankylosaurus: I will padre
Excellent video, the Ankylosaurus Magniventris is my favorite dinosaur of all and one that is woefully misunderstood by so many, the accuracy of your depiction of it cannot be overstated and the details you bring up are extremely insightful, you’ve earned a subscribe for sure
I kind of like the fact where in Jurassic World: Camp Cretaceous, Ben was with his female Ankylosaurus whom he named in Dr. Wu's lab in the camp Cretaceous tour, Bumpy.
Fascinating stuff and nicely narrated...
Love it!
As with almost all herbivores, horns or tail clubs were and are are, primarily used for inter species confrontations.
Buffaloes primarily use their horns to fight with other buffaloes.
It is very much a secondary feature that these offensive adornments can be co-opted as defensive weapons to ward off predators.
My point being, that the purpose of these weapons was not to fight against predators,
but for “in fighting” amongst their own kind.
I admit that I found evidence of intraspecies use of tail clubs after I made this video, or I would have mentioned it.
I also think that this was probably not the primary use of the club. Intraspecific weapons are usually present when there are many individuals and resources (food, territory, mates, etc.) are scarce. There seem to have been very few Ankylosaurs in its area. Also males fighting for mates I find dubious with no examples without the weapons (supposedly females).
Tyrannosaurus had a bone-crunching bite that even an Ankylosaurus’ armour could not stand up to forever. I think the club evolved as an offensive answer to tyrannosaurs, and that if one managed to get in one bite, they certainly were not getting a second. Using it against other Ankylosaurs would be expected if a disagreement developed.
There are also signs that more ankylosaurs increased other herbivorous populations. It seems that predators wanted to stay away from these dinosaurs.
@@palaeo_channel
No criticism of your really good video intended,
I view ankylosaurs in the same way I view glyptodonts, and that is that they developed their traits through sexual selection, and not as a defensive counter to predation.
If as in hedgehogs and porcupines this sexually selected trait, also deters predation, that is a welcome benefit, but not the main driver of the trait.
Other notable sexually selected traits, being the peacocks tail, not used as a predatory deterrent.
The horn of rhinoceros, although useful against predators as a byproduct , is primarily used against members of its own species.
Almost all horned animals today, use those horns in mating rights conflicts, and these horns are seldom used against predators.
You could be right. Finding out the uses for anatomical features of extinct animals is difficult, even more for their primary use.
I still think that the club was primarily defensive for the reasons I gave, but that might change with more information.
This was excellent!
I bet Tyrannosaurs thought these were slow and weak, easy prey. Only for it to do a quick 180 and shatter their leg. Pretty brutal.
Very interesting dinosaurs one of my favorites!
Top documentation.
I only know these from playing ark,very informative video,thanks
What's interesting to me is seeing Ankylosaurus being the top herbivore when compared to Triceratops. I feel like it's the opposite. Ankylosaurus is a mean animal though. But it's head is somewhat stuck out there and even though it's covered in armor, Tyrannosaurus seems to have been the perfect counter with the strongest bite of any land predator. If anything, it would Triceratops that Tyrannosaurus feared and Ankylosaurus, if ambushed, could be taken easily with a clean headshot. I feel like we should do experiments on how strong Tyrannosaurus' bite would be vs Ankylosaurus' armor.
Triceratops was actually the most common herbivore at that time. It and Edmontosaurus were the top Tyrannosaurus food items. There is evidence of Triceratops surviving attacks and being eaten.
Despite the force of a Tyrannosaurus bite, Ankylosaurus was very well defended. All its armour had to do was fed off one bite, because that club would make sure there would be no second.
I love your subtle implication that dracorex and stygimoloch (or however it's spelled, doesn't matter really) aren't valid 😂. I mean, I'm not a betting man, but I'd put a couple grand down on a wager that they are ontogenetic stages of a pachy.
I didn’t mean to imply that Dracorex and Stygimoloch weren’t valid (although they do look a bit dubious). There were so many dinosaurs in Ankylosaurus formations that I left out many that only have a few examples, like these two. This is why I refer to troodontids and dromeosaurs as there are many species, but only a few examples of each.
I will probably talk more about Dracorex and Stygimoloch if/when I do a video on Pachycephalosaurus.
Wasn't an articulated ankylosaurus recently found?
Exceptionally preserved and mostly articulated nodosaurs have been found. These were relatives of Ankylosaurus that had a different armour arrangement and no tail club.
@@palaeo_channel Oh, I see. Thank you.
Didn't iguanodon chew? David Norman said so.
My definition of chew is the grinding of teeth along a horizontal plane. All living animals that grind their teeth do this. David Norman demonstrated how Iguanodon (and other Ornithopods) did things differently. I go through this and more of David Norman’s work in my Iguanodon video.
🦕🦖🦕
Wasn’t there a mummified Ankylosaurus specimen found?
There was a superbly preserved nodosaurid called Borealopelta, that was found with all of its osteoderms in place, and some indication of colouration.
I didn't know the dinosaur is based on three different remains?
Spinosaurus
Cool, one bite on the head while trying to drink water would suffice in getting a meal! No fuss...no muss...one bite!
The head was a box of fused bone, the most armoured part of the animal with armoured eyelids, as I say in the video.
Also, predators tend to be risk-averse. Why take a bite at the heavily armoured tank that can kill you while there are far more Triceratops and Edmontosaurus around. Those have Tirannosaurus feeding marks on them, but none have been found on an Ankylosaurus.
Tyrannosaurus