The Rise of the Tyrannosaurs
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- Опубликовано: 29 дек 2024
- The discovery of a new tyrannosaur, Moros intrepidus, has revealed how these iconic animals went from small, agile predators to the massive, bone-crushing T. rex.
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I find it cute that paleontologists have an unspoken rule that all dinosaurs in the tyrannosauroid family need to have a cool and badass name.
E.G: Moros (Impending doom), Dynamoterror dynastes (Powerful terror ruler), Daspletosaurus (Frightful Lizard),... the list goes on and on.
Huh I never noticed! Really hope they don’t break that trend!
Then there’s albertosaurus who has the most generic name ever
Lythronax
@@GreaterGrievobeast55 albertosaurus. It's already broken
There's santanaraptor placidus tho (the Santana thief)
Thanks for putting the name of artists. someone that actually respects work!
I know, that's rare when it comes to post-2016 youtube.
Oleg Treytheexplainer counts too right?
Why do tyrannosaurs always get the sick names? Come on, “gore king” “monstrous murderer” “dreadful lizard” and then an abelisaur gets named Thanos.
Norman Atherton perfectly balanced as all things should be
Nanuqsaurus = polar bear lizard
“Tyrant Lizard King”
I just remembered there was a huge pterosaur that was gonna be called titanopteryx (something like titan wing), however the name was already taken... by a fly...
Harbinger of doom in the name of the smallest one
Alioramus = lvl 1 crook
Albertosaurus = lvl 35 villain
Tyrannosaurus =lvl 100 boss
That’s how Coelurosauria works
The notorious scoundrels.
Bacon
So where do Daspletosaurus and Yutyrannus rank?
That’s how theropods work
Bacon what about Tarbosaurus,maybe is rank 80 :P
I'd like to think Allosaurus was once Tyranosaurus' mentor, teaching the finer points about being an apex predator. Where once the student, they soon became the master.
How Sith
yes until the old grew into saurothaganax
More like the schoolyard bully whose constant torment caused the weak nerds that were the Tyrannosaurs to beef up to the point where they could beat the big guy up, only to have him move to South America before the confrontation could take place, becoming Giganotosaurus.
I love that lol
Which is really. Allosaurus. Maximus or the real. Big. Al
Proceratosaurus- Level 1
Kileskus- Level 2
Tanycolagreus- Level 3
Stokesosaurus- Level 4
Guanlong- Level 5
Raptorex- Level 6
Juratyrant- Level 8
Moros- Level 10
Eotyrannus- Level 12
Sinotyrannus- Level 14
Appalachiosaurus- Level 15
(Bone Crushing Unlocked)
Dryptosaurus- Level 16
Alectrosaurus- Level 18
Alioramus- Level 20
Labocania- Level 25
Lythronax- Level 30
Nanuqsaurus- Level 32
Gorgosaurus- Level 35
Albertosaurus- Level 40
Yutyrannus- Level 45
Teratophoneus- Level 50
Bistahieversor- Level 60
Daspletosaurus- Level 70
Tarbosaurus- Level 80
Zhuchengtyrannus- Level 90
T.rex- Level 100
(Final Level)
Asteroid Impact Ends The Game
They should do a game or something about that
That’s how mafia works
Tyrannosauridae
Coming out on the Ps4 in March 23
Lol
Level 45 Boss
I'm still waiting for the stone age update. I heard t.rex is getting a stat boost
From small theropods hidden in the shadows of others to bone crushing king's that became the most successful predators of all time.
Couldn’t have said it better myself!
What is your definition of "the most sucessful predators"?
I find interesting that Wile the T. rex was at the top other smaller carnivores were in it's shadow and if the right opportunity were to came they would have become even bigger smarter and meaner than the T. rex
@@theotheagendashill818 As in the tools they had for hunting. Jaws and teeth that crushed bone and extremely good eyesight and sence of smell.
@@davidegaruti2582 Maybe but then again no. At the time of the extinction dinosaur diversity had been dropping drastically in the last few million years. So it would lead to a world with Dinosaurs that had the best traits would survive.
The name Moros is so ominous because of the future of the species XD
Would you consider doing an episode comparing and contrasting allosaurs and tyranosaurs?
Allosaurs are just shitty Tyrannosaurs my dude
@@egemenozcelik7494 dude, it was just a joke.
William Foster
Lmao....tyrannosaurs could do things carnosaurs couldn’t, but the reverse also applies.
Short answer: Allosaurs was a Flesh Cutter and Tyranosaurs were Bone Crushers.
@@jameswolf4894 More specifically: allosauroids (and carnosaurs in general) went for finesse and precision. Their teeth are flattened and ideal for slicing, their skulls are also laterally flattened and specialized for withstanding vertical stresses (as opposed to torsion), and their necks are heavily muscled along the spine to provide the driving force behind a bite. Their biting style would be to sink their teeth in quickly, and have the jaws shear their way out just as quickly, causing major damage to musculature and other soft tissue in the process.
Tyrannosaurids went for strength and blunt force. They have broader jaws with multiple fused skull elements for resisting torsion, blunter, stouter teeth for piercing and holding on, reinforced skull-neck attachments for supporting the weight of a wider and thus heavier skull, as well as muscle attachments for very powerful bites. A tyrannosaur bite would penetrate through skeletons or osteoderms, and then the jaws would latch on while the neck and body of the animal pulls back.
In melee weapon terms, the jaws of carnosaurs are axes or swords, while tyrannosaur jaws are maces or warhammers.
I absolutely adore your videos, and thank you for bringing fresh information on these remarkable organisms to RUclips. I get excited for every video. And your voice is easy on my ears.
A video about the assent of the Tyrannosaurs and how they became such massive predators would make a cool series, similar to your whales series.
Sometime do you think you could talk about paleo/extinct hyenas or just viverroidea in general?
Not many people do.
I second that
Excellent report! My name is Jorge A. Gonzalez and I did the illustrations for Moros intrepidus and Siats. A big greeting from Argentina.
So, as usual, they were small and adaptable and survived by staying out of the way until a radical change in their environment opened up the larger body niches, which they rapidly moved into and eventually became an apex animal.
Nature reuses the same script a lot.
Do you not expect it to? Evolution fits the needs of everything until a niche is filled by something, causing a extinction of a species/specie's.
Rise of the planet of the tyrannosaurs
Dawn of the planet of the tyrannosaurs
That would be a nice movie
I would definitely watch that
I would watch the shit out of that.
Legit they could make a documentary from that, and the fall of the allosaurs be “War for the planet of the Tyranosaurs”
They also became relatively much smarter! T. rex was one of the most intelligent large theropods.
Really? I guess it makes sense since they were pretty social but dayum smart and taht big and strong, AND who’s ancestor was built for running. That’s terrifying
ToastedRamen they are the definition of successful evolution
@@CommunistSubRex no kidding, despite the slow and bulky body it was still somewhat athletic and agile enough to hunt or compete in fights, have incredible smell, forward facing eyes to allow good perception, small arms that could still hold some muscle, and bone crushing teeth thanks due to it's robustness
Could we get a list for Spinosaurids? I’d love to see it
Murder ducks...
Dinosaurs seem almost alien, especially with the feathers. Yet, they are so familiar.
You know now that i think about it the name that they gave moros which means "impending doom" makes more sense cause even if it was just a small species it would eventually evolve into a powerful beast so the title "impending doom" might have been perfect for it
Rise your hands, if you want to end Tyranosaurus discrimination.
Tyrannosaurs are truly the most oppressed race.
Yeah they've been the victims of a lot of negative stereotypes. For a long time they were considered dumb now they're considered smart. Also they're often times called T-Rexes because nobody wants to mention the t word tyrannosaur.
Can you do a video someday on the Asian equivalent of T-Rex, Tarbosaurus? That’s my second favorite member of the tyrannosaur family.
IDK why but the Tyrannosaurids are my favorite dinosaur group
Tyrannosaur Gang rise up
Tyrants 'til I die, I don't care what anyone says.
Tyrannosaurs are truly the most oppressed race.
@@purplehaze2358 So oppressed they don't even exist anymore.
Dr Bright I fully agree
5:09 why does this dinosaur look like Ronald McDonald 🤣🤣🤣
Yay been waiting for this video since the last vid😀
5:06 Ah, the dreaded Clownosaurous. It has the largest humorous of any dinosaur species...xD
5:24 - The Allosaurians keeping the newcomer tyrannosaurs at a small size until environmental changes wiped them out and allowed tyrannosaurs to become huge and step into the role of apex predator reminds me of the wolf-coyote struggle in North America today. For thousands of years, the gray wolf was an apex predator in North America, and often had a suppressive effect on local coyote populations -- when wolves moved in, coyotes moved out. They were confined mainly to the Midwest. However, one of the first things that European settlers did when they came into North America was to kill off any large predators that would compete with them for prey and/or kill their livestock. Today, the wolf is all but extinct in the continental United States. So the coyote, with no more big "cousins" keeping them in check, have steadily increased their range, until today they can be found over all but the very coldest areas of North America. In its new apex role, the new "eastern coyote" has also mated with wolves in Canada and increased drastically in size -- 35% larger than your traditional "western" coyote, with some individuals exceeding 55 lbs (25 kg). In some circles there's even a push to classify the eastern coyote, or coywolf, as a new species -- Canis oriens.
Uh... The wolf is still in the United States...
Ben, you the man. loved this and many of your other videos keep it up man.
I want that image at 0:40 for a wall paper. Badly.
Considering they were both around when predators like Siats and Arcocanthosaurus were dominant, it makes me wonder how tyrannosaurids became the apex carnivores of the Late Cretaceous while the raptors didn't. I'm a tyrannosaur guy but I just wonder how it worked out that way.
Here you go:
www.deviantart.com/arvalis/art/T-rex-vs-Triceratops-711321196
@@WiseSnake Thank you.
Perhaps it had something to do with lifestyle and or anatomy? If memory serves the raptors are part of the larger maniraptoran clade meaning they possessed veined aerodynamic feathers with some of the smaller raptors possibly even possessing powered flight or at the very least gliding. Even the larger species possess quill knobs where large primary feathers attached so perhaps their aerodynamic properties biased them towards smaller sizes? Even if the larger species couldn't fly they might still have benefited from aerodynamic assists in vertical climbing or stability.
Melvin Shine
I believe that’s because the Dromaeosaurs started out as small, gliding forms that ate small prey, meanwhile Tyrannosauroids already had the tools to become ferocious medium sized predators closing the niche for the small flying dromaeosaurids, not letting them attain larger sizes.
This, however, doesn’t mean that some Dromaeosaurs didn’t occupy the niche of the large apex predator in some ecosystems, Utahraptor is probably the greatest example of this, they evolved to become robust and powerful like the Tyrannosaurids, attaining sizes greater than any other Dromaeosaur that came before or after it and out competed any other predator of its environment.
So thats how Tyrannosaurs got there advanced senses and extreme agility. They had the adaptations of small dinosaurs given to giant dinosaurs.
Yea
Gorgosaurus, Tyrranosaurid : Dreadful Lizard
Megapnosaurus, Coelphysid : Big Dead Lizard
Usually the predator with camouflage skin color to the environment of the time like tigers and lions to prevent reception
5:10 I see pennywise was around alot longer than we thought
Very interesting. Resently l've been thinking about what the early tyrannosaurs in North America looked liked. I imagined them similar to Timurlengia in size and appearance and living in the shadows of the bigger Allosaurian predators like Siats. And finally they've found one such creature and I realise that I wasn't away from the truth.
This is awesome that you’re doing a video about this mini T-Rex! I first heard about this dinosaur from a tweet that one of the developers from ARK: Survival Evolved made. By the way, can you do a video about the AwesomeBro topic in dinosaur games?
The biggest Tyrannosaur known, Sue, and she is the most expensive Fossil, $8.3 million, and was auctioned in 1997.
Rip Stan 😔
So the Tyrannosaurus Rex was in the top dog back then was the Allosaurus well sometimes they have a rise and fall of any other life-form
Yessss really had been looking foward to this video
5:05
“I’m Dr. Rockzo, and I used to be a tyrannosauroid!”
Lol
I never cease to be amazed by the conclusions that scientists can draw from just a few bones. Respect.
Not just a few bones, but from a lot of bones, and other fossils.
So different from my childhood dinosaur books that portrayed T rex as the direct descendant of Allosaurus.
Love the Tyrranosaur vids, Ben
I may be a relatively new viewer but I'm glad to find another channel where I consistently hit the like at video start, and still feel the same upon finish.
I don't like scientists who mix Greek and Latin while naming a new species.
So... What's Wrong With That tbh..
Love your content, keep up the good work :)
What about the Proceratosaurus?
I appreciate your paleo news updates. Here in Utah there are many dinosaur discoveries.
Id very much be intrigued to see a video on two things, one is the paleotological auctions that are taken up by celebs, and the idea of cloning ice age beasts
Here we go!!!!
@5:00 the Baboonasaur!
Perhaps you should have narrowed this down to North American tyrannosaurs. Because with the introduction of Yutyrannus, Juratyrant, Stokesosaurus, Eotyrannus, Sinotyrannus, Xiongguanlong, and Guanlong the circumstances showed that while Allosaurs were still the dominant group prior the Tyrannosauroidea group still managed to acquire some pretty fearsome members by both the Late Jurassic and by the earliest of the Cretaceous period(s).
Impending doom is a pretty smart name if ya think about it.
Sickest name for a dinosaur
You should do an indepth video on armoured ankylosaurs, love the videos!! Im subscribed 😁
Now I love tyrannosaurs even more 😃
Hey could you briefly touch on how it is determined that a smaller species is ruled out from being a young of a later larger species of offered wondering how you guys determine a juvenile from an adult versus an adult from a smaller species
5:14 look an exact replication of what happens every time I play juvenile rex on the isle
A well done, albeit short video. Very interesting information!
Nice video m8
Thanks :)
Iconic group of animals? The best group of animals don’t you mean?
* _Cough_ * *Crocadillomorphs* * _Cough_ *
"There is no such thing as an animal that's superior to another"
“The best group of animals” is an entirely subjective point of view not an overlying fact. Though my apologies if I didn’t notice you were secretly joking.
4:09 looks like an Emu.
Thank you good stuff now in this episode not only was enjoyable as always but. I learned something. But does this help explain why in fact the. Allosaurus. Stegosaurus. Camarasaurus. Brontosaurus to name a few went extinct?
The person for height comparison. How tall are they and why not put the height on graphic?
The bloke symbol traditionally used I have always imaged as 1.8m but I dont know why
4:37
Ms. Tom Parker I presume?
is it possible a diet change in the animals they consumed actually made them grow larger?
just like animals eating poisoned animals can poison them too. am thinking the same can apply to protiens ect, eaten by plant eaters being passed into the animels that feed on them as well.
Man utah is the best place on earth to find new dinosaurs no doubt! I’m glad I live here :)
I just found the channel today and I like what I see
5:12
Is that a clown dinosaur? lol
0:06
_"It's free real estate."_
So from one leg and a few teeth scientists can figure out what species? Thats incredible
5:07 Afrosaurus Rex
I think what happened was food supply adaptation. Way more small animals that when the tyrannosaur was small even at end cretacious times, it ran nimbly and rapidly while a child. Very fast eating lots of hadrosaur and other herbivors small ones. We had turkeys when I was small, and they exhibited all the characteristics of small tyros. Then becoming herbivores as adults. Large numbers of insects fell to these growing turkeys.
Nice Video !!!
Thank you :)
Great video. Go forward. Thanks a lot.
And then raptors took their old niche.
This is really interesting to think about, the low leveled carnivores rising up to overthrow the apex predators of their time.
Please do pseudosuchia. So many different niches beyond what most people know (extant Crocodylia).
Yeah really modern Crocodylia were kind of the exceptions rather than the rule as they traded their active metabolism for a ambush predator lifestyle.
Plus all the different physical changes to exploit various niches is quite amazing. They filled the mosasaur niche, the coyote niche, the baleen whale niche, the bipedal predator niche... They definitely did NOT put all their eggs in one basket.
Truly fantastic video! But I've got one nitpick in 1:35 - In it the paper, the authors state they do not refer the teeth from the formations (and other Early Cretaceous formations), instead labeling them Tyrannosauroidea indet. It is very possible that they're Moros teeth, but not 100% since they're not associated.
Good show
Great Video!
Absolutly fascinanating video Ben - I thoroughly enjoyed it but am still a little confused. You say, "The opening of the western waterway and a climactic maximum led to the demise of the Allosaurians and the evolution of the smaller Mono's into what we know today as T-Rex."
If a large predator like Allosaurus was brought down, to be replaced by another large predator, there seems to be some further explantion needed. It maybe that we don't know yet how this mechanism evolved and if that is the case then I fully accept the premise. There seems to be pieces to the puzzle missing.
Thanks again.
I think that there may be clues if you look at where Allosauroids survived during the Cretaceous. You had Giganotasaurus down in South America and in North Africa you had Caracharadontosaurs, both of which are considered to be Allosauroids and thus distant cousins to Allosaurus.
Allosauroids as a group survived all the way from the mid Jurassic down to the turonian stage of the late Cretaceous after which point tyrannosauroids began to take dominance in the northern hemisphere with the abelisaurs becoming top predators in the southern continents.
Allosauroids went extinct for the same reason most animals do : changing conditions to which they could not adapt to quickly enough allowing other groups of theropods to fill the void they left
@@jasonvoorhees5180 who knows? Maybe there ll be a giganoto or mapu evolution to discover yet since the carnotaurs and other abelisaurids just stay in a mid body size to the end.
Wait what about the dromeosaurs why didn’t they took the top spot were they not at specialized ?
Will we ever see a video on the Abelisaurids? It's insane that all it took to keep the Tyyrannosaurids from basically conquering the planet was an equatorial gap, allowing for Abelisaurs to rule uninterrupted for the better part of the Cretaceous.
I think tyrannosaur gained ascendency by being adapted to smell. Thus the food supply in large amounts when a sauropod died, thus wafting smell for a long distance downwind. It thus could achieve larger adult body size, before predating on the much larger herbivores, like the plentiful hadrosaurs. Being larger served two functions. 1. A reserve of fuel for longer larger area searches. 2. Adaptive smell sense, for even small meals not reserved to carrion. Possibly the other carnivore never genetically adapted as fast for either of two reasons, of temperature stability with feathers, then smell adaptation for better hunting ability in lean times. Smaller is advantageous, and large is advantageous, but not in super critical conditions at the end of the Jurrasic paleogene boundary except much smaller. Then numbers are important, and location. Why the hadrosaur never survived is to me a mystery, but may have just been body size relations to conditions.
Bears of the Cretaceus
Or you could actually look these things up instead of making rather strange presuppositions on the matter. Early tyrannosauroids were typically consuming smaller prey in a lower trophic space than bigger theropods at the time (Allosauroids) until they were gradually able to evolve into the role of apex predator in their respective ecosystems once said niches opened up for them somewhere towards the midpoint of the Cretaceous. In the last few years we’ve been gradually more informed about the ecological shift that allowed tyrannosaurs to assume their top predator roles in the Mesozoic including from other tyrannosauroids like Timurlengia giving us insight into the evolution of their sensory capabilities. This is an excerpt from the paper describing the animal:
“ *The holotypic braincase of T. euotica is a keystone specimen for understanding how the highly derived brains, sensory organs, and endocranial sinuses of large-bodied tyrannosaurids evolved. Braincase material is known for only a few other basal tyrannosauroids, but has yet to be CT scanned or studied in detail, making Timurlengia the oldest and most basal tyrannosauroid with a well-documented braincase. Aside from its autapomorphically robust inner ear, the brain of Timurlengia resembles a smaller version of the brain of Gorgosaurus or Tyrannosaurus (25, 26). It reveals that many apomorphic features of the tyrannosaurid brain and ear were already present in midsized, nontyrannosaurid taxa, including a tubular endocast with a slight midbrain flexure, a pronounced midbrain peak, and an elongate cochlear duct. It has been suggested that some of these features may have been instrumental in the evolutionary success of the large-bodied, latest Cretaceous tyrannosaurids, particularly the long cochlear duct that imparts heightened ability to hear lower-frequency sounds than in other theropods, which would have been useful for an apex predator (2, 26). These features, however, developed long before large body size. In this regard, the brains and keen senses of early tyrannosauroids may have predisposed them to become successful apex predators when the opportunity arose. This has parallels to the “head-first” model, in which characteristic features of the oversized and robust tyrannosaurid skull evolved before those of other regions of the skeleton, noted by some authors (41, 45)*
*On the other hand, the pneumatic sinuses of Timurlengia are nowhere near as elaborate as in the largest tyrannosaurids. The baseline sinus system of coelurosaurs is present, but Timurlengia lacks the supraoccipital and subcondylar recesses so characteristic of tyrannosaurids, and also seemingly possesses a less extensive anterior tympanic recess in the prootic. It may be that these recesses developed in concert with large body size, either to lighten the skull or, in the case of the tympanic sinuses, to help tyrannosaurids maintain the ability to hear lower-frequency sounds at larger size (26)* “
www.pnas.org/content/113/13/3447
Also note The Jurassic and Paleogene aren’t right next to each other in time dude..,you’re talking about the Cretaceous/paleogene extinction boundary. during the KPG event *all* non avian dinosaurs died off leaving birds as the only surviving branch. The mass die off of dinosaurs , lepidosaurs, pterosaurs and other large fauna at the time are predominantly linked to ecological meltdowns from collapsing food webs and the fact that the impacts resulting effects caused pretty much all land animals above a certain size to die out from lack of resources or their difficultly adapting to such pressures as a result of the asteroid impact. Smaller animals that could hide in some , required less food or had slower metabolisms to accommodate the former point are the ones who ultimately pulled through
My favorite paleo/ biology/ science RUclips channel NOT produced by PBS Studios or Hank Green.
All your dino vids are a roar. Get it? Ha ha. Thanks again for the info and your time. 😀
5:14 The illustrator must have eaten a clown....
So an emperor of the dinosaur
Oh. From the title I thought this episode was about what time they got up for breakfast. This is ok, too, I guess.😜
I love to have a imagination of that the tyrannosaurids basically took over the earth together and built an empire across the world (And the Rex is the emperor of them all) and other carnivores like spino, Allo and Giga try fight for there freedom. I know it is a very extreme but it’s very cool in my opinion 🤣
Science is cool 😎
Hodari Nundu should be ashamed for drawing that allosauroid like a clown. That image is so cursed.
Very interesting. I think the Allosaurus as found around 150 million years ago might just have evolved in a variety of Allosauroida. They were the most succesfull of the carnivors by miles. They dominated from 75 to 90%! No land predator I can think of have ever been that succesfull. Perhaps the earliest Hyena, but only for 2 million years tops.
If climate change is the only suggestion than I don't buy that. It might be, sure. But that doesn't explain the survival of much larger animals that need way more water to keep cool.
Just to remind you we talking about a very succesfull creature here. My guess just is a variety of adaptations. We see it with so many species today. Lions, elephants. They adapt to the most extreme environments in just a few thousand years.
Holy crap. Is that Pennywise Tyrannosauricus at 5:04?
So, the Proceratosaurus isnt even going to get a mention in this? I mean dont get me wrong, Moros Intrepidus is interesting. But its no way near the earlyest Tyrannosauroidea, i still like to think Proceratosaurus gave the blueprints for creatures like Moros, Alioramus, Tarbosaurus, Gorgosaurus, Saimotyrannus, Despletosaurus, Albertosaurus, Dynamoterror and T-Rex. Without Britain's version of these dinosaurs, there would be no Tyrannosaurids.
Did moros maybe evolve from stokeosaurus, a 4m theropod thought to be a tyrant lizard
5:01 the big top tyrant
I'm a little surprised that they didn't call Utahosaurs . Like that Raptor.
One question where is all the blood
5:06 😆
Ok not 6 but 3 or 4 . Its still fanboytastic .
Could you do a video about the evolution of birds? Iv always wondered if they descend from a species that had already evolved during the age of the dinosaurs or from a survivor of the extinction. I know some birds did exist beforehand while the dinosaurs still existed but are they the direct ancestors of modern birds?
I think it's fair to say this has already been talked about and can be seen in nature.