New Tiny Armored Dino Fills In Gaps In Ankylosaur Evolution? - Jakapil
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- เผยแพร่เมื่อ 8 ก.ย. 2024
- The armored dinosaurs are some of the most interesting. Whatever you think about the badassery of the predatory dinosaurs, the vast array of crests of the hadrosaurs, the bizarre guts, chests, necks, and tails of the sauropods, or the copy-my-homework-but-don’t-forget-to-change-it-a-little ceratopsians, the armored dinosaurs adapted to their armored lifestyle in a way that places them far outside the realm of what we might consider ‘normal’ for dinosaurs. Despite how much is known about the biggest and most advanced of the armored dinosaurs - like namesake stegosaurus and ankylosaurus - virtually nothing is known of their ancestors and cousins. A slew of new fossil finds from the global south are blowing open a lost world of armored dinosaur diversity literally no one could have suspected, and a brand-new alien puzzle piece was just described that proves there is a lot more than meets the eye when it comes to armored dinosaurs. Meet Jakapil.
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RESEARCH
Riguetti, F.J., Apesteguía, S. & Pereda-Suberbiola, X. A new Cretaceous thyreophoran from Patagonia supports a South American lineage of armoured dinosaurs. Sci Rep 12, 11621 (2022). doi.org/10.103...
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RESEARCH
Riguetti, F.J., Apesteguía, S. & Pereda-Suberbiola, X. A new Cretaceous thyreophoran from Patagonia supports a South American lineage of armoured dinosaurs. Sci Rep 12, 11621 (2022). doi.org/10.1038/s41598-022-15535-6
But What's about Lesothosaurus? It's an African small Thyreophoran, no it isn't? Or is a basal ornithopod, only? What is the cladistic position of Lesothosaurus at the armoured dinosaurs evolutionary tree?
I love when they announce new species that don't turn out to be dubious
What I like most about this one is how it looks like one of those cheap plastic toys.
Let's take a bit of Ankylosaur, a bit of Carnotaurus, and let's add a few spikes for good measure. Boom! Dinosaur.
Lol, I must admit I thought it looked fake.
You need to watch YDAW on here, for "Your Dinosaurs Are Wrong."
@@MaryAnnNytowl HELL YEAH, definitely reccomend those guys
Cretaceous Gondwana is turning out to be stranger and more amazing than could have been guessed even just two decades ago.
"A perfect conclusion on what the hell this thing is could not be reached."
This is a painfully recurrent theme of paleontology.
The discovery of jakapil was very exciting to me. Because if it is a basal thyreophoran then were talking about a ghost lineage of 100 million years because as far as i know no basal thyreophoran more primitive than stegosauria and ankylosauria survived past the early jurassic and jakapil lived in the cenomanian stage. But the interesting thing is that some paleontologist has expressed the opinion that jakapil maybe is a basal marginocephalian which is the group containing ceratopsians and pachychephalosaurs.
maybe a link between thyreophora and marginocephalia? (random guess dont take this seriously)
the only marginocephalian feature on jakapil is the jaw, which isnt avtualy marginocephalian like at all. it also has the T ribs of thyreophora
Can we just stop and appreciate that the scientist who named the thagamizer named it after a Far Side comic I swear the inside jokes of these nerds are ridiculous
Yup, we need a better term
@@reeyees50 personally I love the stupid inside jokes these nerds do with naming things
I think it's a great name.
RIP Thag Simmons
@@reeyees50 The entire reason that happened is because there wasn't an actual term. Someone reading that comic realized that at no point had the structure actually been named. So blame the scientists that just called it "That spikey thing on the tail of Stegosaurus."
Jakapil is quite an interesting little critter ; and i am thrilled by the possibility of a ghost lineage still eluding us.
Who knows how many other species still wait in the rock for us to unravel their secret ?
For me the fact it's got those tiny forelimbs is just so interesting, because that is not something I'd ever have expected in an armored dino.
@@brettwood1351 The tiny forelimbs are really interesting because not only could this be a ghost lineage but it could also possibly have been re-evolved from a quadrupedal ancestor though I’ll admit the latter is unlikely.
@@theangrysuchomimus5163 Yeah, it's just so very odd in this particular branch of the Dinosauria. It's really unlike the other armored Dinos, and not something you normally see outside theropods even on the smaller species.
Well their is speculated to be about 1.4 million dinosaurs that have yet to be discovered
Whether it's a thyreophoran or a ceratopsian, I want one as a pet. 🥰
Same
ceratopsids are lame and don't deserve aesthetic. Thyreophorans lost their way. They should've kept looking like this. This is the only valuable thyreophoran
@@neo-filthyfrank1347 Psittacosaurus deserves it
@@SomeKindOfDodo piss taco is a socialist
@@neo-filthyfrank1347 ceratopsids arent really lame they are strong and very argessive
I’ve learned about this dinosaur yesterday and first thing I thought was… ITS SO CUTE
bipedal >>>> quadruped
quadrupedal dinosaurs were a mistake
Spinosaurus: I am the most confusing dinosaur!
Jakapil: Hold my osteoderms.
I love how these newly discovered dinos looks like they'd make awesome pets XD (namely this jakapil and stegouros)
In my youth; Ankylosaurs were my favorite dinosaur, yet it never occurred to me one might be small enough to be a pet. Pokémon has shown us a tiny T-Rex and a tiny version of the one with a giant frill from South America(Amaura and Aurorus, I forget the exact name of the dinosaur) now Pokémon needs a tiny Ankylosaur 'mon.
Amargasaurus?
@@beccup that's a sauropod
@@paleo6829 he's pointing out the original species name I forgot, of a Pokémon they already made I used as an example, tho at least I remembered the 'mon names.
@@beccup that's the one, Auroros was based on, thank you
@@thunderhammerx2966 oh I'm a dumbass
Seems like this dinosaur, is another career making dinosaur fossil. I think a lot of dinosaur hunters will definitely be looking for more of these guys. Still wish we could clone dinosaurs in real life even though it's impossible. This one sure is a pretty cute combination, kind of like a armadillo, dinosaur, turtle. ✌️😎
Possible if u activate bird dna
@@wingedhussar1453 Bro it’s a lot more complicated than that. Eggs are fucked up things, that’s why scientists after decades still haven’t been able to clone a non extinct genus.
@@wingedhussar1453 "Activate bird DNA"? What does that even mean? It wouldn't help, nor does it make sense
I'm so grateful you took the time with all the names, locations, meaning and where it comes from, it's really appreciated!! I see this is indeed one of the dinosaurs ever. Love from Argentina!!
This fossil makes me think that maybe Ankylosaurs are not related to stegossaurs at all, but are actually an offshot of maybe the main branch of ornithischia, maybe the ornithopodas themselves.
we'll probably never know for sure. cant even imagine the amount of spexies without a fossilized specimen
I don't follow what made you come to that conclusion
@@robertjackson1813 Well, if we conclude that the basal members of ankylosauria were biped, and not quadruped, it is less likely that it came from stegossaurs since the later one were most older and we know that they were all quadrupeds.
@@Pedrosa2541 That's not strong enough of evidence to justify such claim.
@@Pedrosa2541 We already know that both ankylosaurs + stegosaurs evolved from bipedal ancestors = the basal thyreophorans Scutellosaurus (and probably Scelidosaurus) were facultative bipeds . Isaberrysaura is almost certainly an early bipedal stegosaur or stegosaur-relative from the Middle Jurassic.
To me it definitely seems less likely to be a basal magenicfalian and more likely part of a gondwanan liniage of theyrioforan. Really interesting little critter. The bottom jaw looks suitable for digging with and it looks like it could chop into some tough vegitation. If it was inhabiting the more arid areas i would imagine this would be helpful as it could crack hard seed pods, or excavate roots, rhyzomes and tubers. In any case its a rare glipse at life away from the mesozoic waterways and oases.
I really appreciate your explaining terms and showing parts you are talking about. That helps when learning. I would love a video about understanding some of the terms and parts of words. Like Pre for Predentary is in front of the dentary. Or ant in antorbital fenestra is a good one to talk about what the words mean and how they are used. Orbital = eye ant as in anterior = in front fenestra = skull hole :) and then we get the pre antorbital fenestra. :D
Also skull bone names sound like someone forgot to study and just made something up for the test. Jubal, squamosal, ...
i like these little guys with unique quirks :
stegorus , alzaskaraptor , jakapil , noosaurus
they would be the the ones you meet in nature and they would fit in a fantasy setting
Until more complete specimens are found we may never know if scientists got it right or wrong about Jakapil.
The fact that ceratopsians and thyreophorans are very distantly related, but paleo-nerds can convincingly place this little guy in either group, is nuts.
Now that I'm older and I regularly watch educational/edutainment paleobiology vids recreationally, I know that, and understand how, ceratopsians are more related to Pachycephalosaurus whereas stegosaurs are grouped with ankylosaurs in thyreophorans; however, this reminds me of how confusing dinosaur taxonomy used to be - especially for myself as a child.
When I was a kid, I loved dinosaurs. At 5 years old, I stunned my friend's grandma by answering what I want to grow up to be with "I want to be a paleontologist."
My favorite movies/shows were dinosaur documentaries like 'Walking With Dinosaurs' and 'When Dinosaurs Roamed America,' as well as Nigel Marven's prehistory shows.
I even actually argued with someone in preschool that the T-rex was bigger and stronger than Godzilla (…then went on to become a Godzilla fan for the rest of my life in kindergarten, with Ultraman coming in 1st grade).
When I was a little kid, while I was a smart kid, I had next to no idea how evolution worked. This is how I believed the different groups of dinosaur evolved:
[Note: I'm currently 21, so my memory which dinosaurs I knew as a kid is a little fuzzy, but I know I knew of most of these. I'll mark whatever I'm uncertain of with an asterisk.]
[EDIT: To place two asterisks in the same line of a TH-cam comment, one must be touching a punctuation mark, or else everything between is bolded and the asterisks are erased. This is lame.
Also RIP mobile users trying to read this.]
Plateosaurus (T) -> all Sauropods (J) -> [extinct] (K)
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Herrerasaurus (T) -> Eustreptospondylus (J) -> [extinct] (K)
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[?] (T) -> Scutellosaurus* (J) -> Scelidosaurus*!(J) -> all Ankylosaurs (K)
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[?] (T) -> [?] (J) -> Therizinosaurus (K)
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[?] (T) -> [?] (J) -> Giganotosaurus (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> [?] (J) -> Carnotaurus (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> [?] (J) -> Megalosaurus (K)
\> Carcharodontosaurus (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> [?] (J) -> Baryonyx (J) -> Suchomimus (K)
\> Spinosaurus (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> [?] (J) -> Stegosaurs (J) -> Stegosaurus (J) -> [extinct] (K)
\ \> Kentrosaurus (J) -> [extinct] (K)
\> Protoceratops (K) -> Ceratopsians (K) -> Triceratops (K)
\> Styracosaurus (K)
-----------------------------------------------------------------------------------------------------------------------
Coelophysis (T) -> Ornitholestes (J) -> raptors (K) -> Dromaeosaurs (K)
\ \ \\> Microraptor (K)
\ \ \> Archaeopteryx (K) ---> birds (Cenozoic)
\ \> Oviraptor? (K)
\> Compsognathus (J) -> Troodon (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> [?] (J) -> Allosaurus (J) -> [extinct] (K)
\\> [?] (J) -> Ceratosaurus (J) -> [extinct] (K)
\> [?] (J) -> Syntarsus (J)
\> [?] (J) -> Dilophosaurus (J) -> extinct (K)
\> Cryolophosaurus (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> [?] (J) -> [?] (K) -> [?] (K) -> Tyrannosaurus rex (K)
\\\ \> Nanotyrannus (K)
\\\> Tarbosaurus (K)
\\> Torvosaurus (K)
\> Gorgosaurus (K)
-----------------------------------------------------------------------------------------------------------------------
[?] (T) -> Dryosaurus (J) -> Leaellynasaura (K)
\\> Psittacosaurus* (K)
\> [?] (K) -> Iguanodon (K)
\\\> Tenontosaurus* (K)
\\> Ornithomimus (K) -> Gallimimus (K)
\ \> Oviraptor? (K)
\> [?] (K) ->Maiasaura (K)
\\> Hadrosaurs (K) -> Edmontosaurus (K) -> Anatotitan (K)
\ \> Ouranosaurus (K)
\> Ornithopods (K) -> Lambeosaurus (K)
\> [?] (K) -> Parasaurolophus (K)
\> Pachycephalosaurus (K)
2:07 Not all ankylosaurids had clubs. Only members of the sub-family ankylosaurinae had clubs.
Ceratopsians being "copy my homework but remember to change it a little" dinosaurs made my day ✨️
Thank you for using my art! :)
Sabre toothed squirrel....You're telling me Scratch was actually REAL?!
Kinda, but it's not actually a squirrel. Cronopio dentiacutis was actually first described in 2011 and was noted for looking strikingly similar to the character from Ice Age. However it's a mesozoic species and it's not closely related to squirrels and rodents as a whole. In fact it's a non-therian mammal, so it's more basal that the modern day marsupial and placental mammals.
Hey, isn't a big deal but there's a heterodontosaurid sketch of mine at 3:13 mislabeled as being by Hodari Nundu.
Apologies. I have no idea how that happened.
boy do i love the different flavors of ankylosaurs
Lol “...or the ‘you can copy my homework just change it up a little bit’ ceratopsians” lmao
That dinosaur looks like a good pet. I LIKE IT VERY MUCH
Wouldn't it be cool if it was indeed a pachycephalosaur
With every video, EDGE defends slowly into madness, meming part of videos.
This opening animation is amazing.
That Dark Crystal reference though! I caught that!!
Nice Denver museum footage! I live there :) keep it up, your channel is awesome. I have learned lots and I love dinosaurs and everything. Awesome!
I'd love for more of the tail to be found! fingers crossed for some fun ornamentation/weapons there
Jakapil is one amazing new dinosaur,also I love everything in this video which was just so great
Truly made my day and I hope y'all are having a great day
english
Cute as it looks, I sincerely doubt _Jakapil kaniukura_ would've made for a very suitable pet.
For starters, it's got an _impressive_ array of defenses - spikes all over, a tail like a flanged mace, a powerful jaw with a relatively high bite force, and powerful legs with hefty claws to propel all that extra mass - which means it would have lived in an exceedingly dangerous environment, much like the modern-day African savannah. Generally, there's three ways of surviving in an environment that is that deadly:
1) You get really big. Big things are much harder to kill, and in turn can crush any would-be assailants underfoot like insects. Think of what an elephant or rhino, or water buffalo can do to a lion.
2) You get really small. Tiny things are easy to kill, but also provide much less nutrition, and tend to be difficult to catch because they're relatively fast, agile and capable of getting into spaces bigger things cannot, like burrows and the like. That means a large predator would need to expend a lot of energy trying to catch a meal that does not provide a very good return on investment. On top of that, being small makes it easier to hide and thus escape a predator before it's even decided it wants to eat you.
3) You get really angry. The final category comprises animals of medium sizes like dogs, hyenas, many flightless birds, badgers, boar, wolverines, other mustelids, porcupines, etc. They protect themselves in a much more pro-active way, by ensuring that anything trying to eat them or their young gets very badly hurt in the process. To that end, they also often develop features like spikes, claws, powerful muscles, and strong bites, combined with a general lack of a sense of self-preservation in favour of a berserker rage and displays of fierce aggression.
Jakapil, with its impressive array of defenses, combined with its medium size, would likely have had a temper shorter than the average life expectancy of an eel in the desert. In fact, in many ways it's very reminiscent of another medium-sized dinosaur with an awful disposition and the stopping power to back it up that's still alive today in the form of the cassowary - except more extreme in just about every single way.
Furthermore, theropods (despite what you may think from their reptilian looks) were warm-blooded animals. While its warm-blooded nature would certainly help in adapting to other climates, the fact is that as a pet it'd come into contact with a huge number of other warm-blooded animals (read: humans) with very similar biology to theirs. You may see where this is going: they'd be exposed to a huge number of infectious diseases that they'd have had no chance to evolve defenses against, simply because those diseases wouldn't be able to survive in the hot, arid climate these desert dwellers would live in naturally.
Long story short, a sickly armoured cassowary with a battleax would make for a terrible pet indeed.
Yeah I too highly doubt it would be friendly in any semblance of the word evolution after all ancestrally favors fight or flight reflexes and good enough solutions, the characteristics of "tameness" are usually only found naturally in species which have close nit social cohesion, we have no evidence for that level of cooperation in nonavian dinosaurs as generally many perhaps most modern animals even those which will group up situationally are also fairly likely to be solitary depending on the conditions and as a general rule such animals are not tame in the least bit.
i.e. facultative sociality the type which is fairly widespread among extant animals this doesn't favor strong tameness you need obligate social behavior and or artificial selection for that more tame behavior to appear. These traits for obligate social behavior generally come with strong biological selection like any physical traits which means energetic trade offs in the metabolic budget must be made.
Perhaps the best evidence against them being friendly is that growing and maintaining living weapons is energetically expensive and resource intensive. The traits an animal can support are limited by their metabolism and available resources and thus if such powerful defensive weapons and armor are not needed then by natural selection they are not going to persist for very long long due to their high metabolic burden impeding reproductive success. Therefore species which have armored and or weaponized bodies are those where these traits are critical for their survival and surprise surprise such animals are unlikely to be friendly...
Darn you and your amazing skills 💎
Wonderful video 🤙
That is... definitely not the front end I was expecting that creature to have.
Words cannot describe how much I love this little guy
I had a 16 pound giant cat, and my current cat is 10 pounds. I would say they'd be less messy then a shedding cat, but those jaws make me think it could destroy let's of chairs and tables if it really felt like it.
"YASSS queen! Prance!"
YES! I love this thing. It’s my new favorite dinosaur.
Jakapil looks like a fusion of both the dinosaurs from "Yee".
*y e e*
Adorable!
Good animation!
Babe, new dinosaur just dropped!
It’s adorable and spikey like a hedgehog
Stegouros and jackapil are the best news species.
I want to pet them, they're soo cute.
(Ahem)
And interesting news discoveries that help us to better understand ecology of those ancient ecosystems dinosaurs diversity and behaviour and dinosaurs evolution that can make us rethink our classification of the Dinosauria as well as few other Taxon and Genus that might be from another lineage or their own lineage.
Its so cute I want to one!
The Jakapil makes me a lot remember a miniature version of "Zilla" of the film Godzilla (1998), with the armor like that of the Gastonia and with the Little Arms of the Carnotaurus.
Jurassic park but it’s just thousands of these lil guys
🤣 the animal planet theme song at the start lmao
8:25 "...a perfect pet..." if you don't mind having your leg broken when you startle it out of its sleep.
i had no idea about the T shaped verts! i am now manifesting... thank you kindly again for the two features 😜
i really enjoyed you showing the science banter tweets, really added to the analysis
“ I is a tiny Ankylosaurus wid T-Rex arms!!!”
Not gonna lie, first time I saw a screenshot, I thought it was a new relative of Carntaurus, rather than where it is on the Dinosaur family tree.
@E.D.G.E Jakapil fills the gap in the evolution of Ankylosaurids but what if there’s gaps in the evolution of Theropods like Gigantosaurids and Tyrannosaurids these gaps hold weird and wacky Gigantosaurids and Tyrannosaurids with overbites, boney head bosses, spiked tail clubs, dewlaps, fangs, frills and funny faces
The Candeleros formation doesn’t get enough love honestly on top of this little guy it has a giant titanosaur, Giganotosaurus, one of the first snakes and said snake still has legs, a mammal that looks like scrat from ice age, one of the largest abelosaurs in Ekrixanatosaurus, a raptor, and I could go on yet everyone’s stuck up the Kem Kem beds ass for some reason.
This little guy reminds me a lot of the Pugiodorsus from The World of Kong, and I can see such animal evolving from this little armored herbivore if it ever reached the island. Such an amazing and cute new armored dinosaur, I can only wonder what other bizarre ancestors of the stegosaurs and anquilosaurs are left to be discover, heck, there could be a real life Anguirus out there waiting to be discover
'copy my homework but change it a little' 🤣
Haven't gotten farther than schizophrenic skeksis. Laughed so hard, best juxtaposition all day! Now for the rest of the video 😎
1:18 Basically it's said as either "Jack-a-peel" or "Jack-a-pill".
8:25 Sci-fi genetics companies would agree.
This is the animal ever.
I’ve been trawling the comments to see did anyone else hear that or if I imagined it
Thank you very much for this fascinating and thoroughly researched documentation.
If they still insist on making that Chris Pratt Mario movie, they better make Yoshi look exactly like this.
Schizophrenic Skeksis? ...So a normal Skeksis, then?
Jokes aside, I do wonder if maybe Jakapil isn't something of an unintentional chimera--it's not like that hasn't happened before, after all. If the bones were that mixed up and fragmentary as a result of a wandering dunes environment, then it's entirely possible we're looking at a species made up of the fragments of more than one specimen having been mixed together by the movement of the sands before they solidified and fossilized. The fragmentary nature of the find could be hiding that. It'll be interesting to see how this develops...or even _if_ it develops.
Hypothetically if somehow it was related to ceratopsians more, and the speculated look turned out to be pretty accurate; would convergent evolution be a plausible explanation to the similar osteoderm like armour of ankylosaurs/stegosaurs?
Ah yes, another hugging sized babie
It's got some serious jaws! It probably used a likely powerful bite force for feeding on tough arid plants.
5:17 "a brand new weirdo has been added to this list" thats what i used to think whenever there was a new student
Really loving this new intro music
4:17 “As they got too fat to waddle ontop two legs.They were NOT rocking thigh highs”
bro what
The fact they walked on 2 legs is still a guess, there's no solid proof about it.
It's even mentionned in the original study.
It literally had arms too short to walk on. The arms and legs are complete enough to know it was a biped.
give this thing to every dino game i need them the mini ankys
As they got to dmd fat to walk on two legs, fucking killed me. RIP me at 430 am
The image of jakapil reminds me of an armored iguana with tiny front legs. I'm hoping more fossils of it are found to, um, flesh out the skeleton for lack of a better descriptive term. The existing fossils could be fragmentary and scattered because the creature was ripped apart when it died as well as the terrain in which it lived
I love the intro it's so good and condolence to the artist who made it,also this video was just so epic
I love the reference to the skexes in 3:17 😉
I'm loving this narrator right now. Laughed until at cried at " as they got too damn fat to to waddlt around on two legs. They were definitely not rocking thigh highs."
Enjoyed your video and I gave it a Thumbs Up
Holy crap you weren't kidding that the spicomellus (spiked collar) rib fossil was probably the weirdest single rib ever found, wow
Awww it was so cute!
OMG A REFERENCE TO THE DARK CRYSTAL!!
I just love these unique and weirdo Dinosaurs!
Lippity-Kip!!
Loved the video! Just so you know, Jakapil is a Tehuelche word, the J is pronounced like in German (like English Y)
i loved the nodosaurs and ankylosaurs as a kid.
Noice channel there bud!!
We need a figure of this. This is so freakin dragon 🐉 😊
Jakapil reminds me of jackalope
the armor evolution screaams " try and bite my neck predators" 😂😂
ARMOR *click*👌*click*👌
“A brand new weirdo has been added”
The brand new weirdo: *WHYY!*
ah! a new crunchy style walking sausage. a favorite of discerning carnivores on the go looking for a snack
i don't see a youtube link in the description
its like a anodontosaurus and majungasaurus but together as a dino
Don't say weirdo like it's a bad thing! 😆😆😆
Besides, he's not a weirdo, he's a cutie!
I hope more is found of this little Jakapil, as it's really intriguing. 😊
I'm willing to bet it used that huge jaw either for cracking open hard to eat plants or for fighting. Or both.
In fairness, I don't think there are many primitive ceratopsians attested (if any at all) in the Gondwanan fossil record to date so I'm also curious just how many of the dental adaptations could be a matter of convergent evolution. But then, my Gondwanan paleobiology is quite fragmentary.
I saw that first clip on the news
Amazing intro animation!!!!
Missing Link, Good description, this dinosaur species belongs to a novel group that are distant relatives to ankylosaurids.