20.68 metric tons seems way too heavy for a megatheropod. I can’t wait for the name and the full description for a new dinosaur, megatheropod or not.

WHO DARES TO SUMMON THE BRAZILIANS?

Remember when we thought Spinosaurus was a 60ft predator that weighed 20 tons?

This therapod will get increasing hype for the next few years, it will get reviewed by less biased peers, and it will be downsized. Calling it.

paleontologist finds a single fragment of a single bone : "this creature was 10 kilometers long and ate nothing but raw petrol based on my studies"

Finally, someone is talking sense about this with the proper context. Love your videos.

In other news, the giant British ichthyosaur got named.

A few ways to explain away the size of the centra is A) That it belonged to a Sauropod B) That the animal it belonged to had fewer tail vertebrae than other carcharodontosaurs, making each one longer on average to increase rigidity and balance C) That the fragmentary nature of it indicates it could be misidentified as a middle caudal centra and instead be one closer to the hips and therefore longer. 16.8 meters does sound pretty outrageous and unlikely. Though isolated elements have broadened our understanding of what was possible in species size before, such as the big old Temnodontosaur bones that put the 10 meter size into question. Sometimes though, there are just too many unknowns, this case seems to be one of those.

We all are laughing at the 20 ton estimates now 😂 I remember the good old days where an oversized Baryonyx with a sail on it's back was 21 tons😄

i would name it Diovorasaurus The god eating lizard

There are also some random isolated toe bones of T.Rex that ought to have belonged to stupidly large, far bigger than anything else we have, BUT again, way too fragmentary. They could have come from an idividual that had unusually large feet. This is why we shouldn't make much to do about specimens of anything that are too little to be certain on.

First Ubirajara and now this, Brazil been going crazy lately for paleontology

Haha yeah I'll believe it when they can actually prove it. We've seen the paleo community try to dethrone the Rex for almost 30 years now, and the king has always come back to assert his tryanny.

Can't wait for the downsizes if we find more fossils

This is by far my favorite paleontology channel. Thanks for bringing attention to this specimen!

The giganotosaurus from Dino Crisis 2 is becoming more and more real XD (although in this case it is not known which family it is from, since it is only 1 bone)

REFERENCES (and please make sure you read the disclaimer in the video) Acro Midcaudal Measurements: www.researchgate.net/publication/40662847_A_new_specimen_of_Acrocanthosaurus_atokensis_Theropoda_Dinosauria_from_the_Lower_Cretaceous_Antlers_Formation_Lower_Cretaceous_Aptian_of_Oklahoma_USA page 221 Bandeira et al 2024: www.tandfonline.com/doi/full/10.1080/08912963.2024.2318406 Bates et al 2009: www.researchgate.net/publication/24023506_Estimating_Mass_Properties_of_Dinosaurs_Using_Laser_Imaging_and_3D_Computer_Modelling/figures?lo=1

I remember when Spino and Giga were 20 tons.

20 tons? That's like an early 2000s Spinosaurus fanboy's wet dream right there (I am a Spino fanboy)

Soon the rex will go from 12 to 21 tons to reclaim it's throne, like it did before

20 tons is unrealistically large for a theropod. Who the hell came up with this estimate?!

Remember when people had Spinosaurus at the the 20 tonne range lmao

Breaking News: Ichthyotitan severnensis waiting in the deep 👀👀👀

After seeing the hype around other Carcharodontosaurids that were "bigger than T-Rex", I'm afraid that with enough research it's size will be estimated to be not bigger than T-Rex. Still, Giganotosaurus is pretty much as big as T-Rex, but less thick. So may it be with any other Carcharodontosaur, I think. Maybe the speed of neural impulse(15 m/s) limits the size of the efective predator to 12 meters and 8-10 tons.

Well, until it is confirmed or not. The largest carnivorous dinosaur in Brazil will continue to be Oxalaia/Spinosaurus.

Unexpected Acro mentions are always welcome

Somewhere in heaven, Giga and Meraxes are laughing.

Lets just wait for next T-Rex Speciment xD

T-Rex be like: Not in my kingdom you don’t!

20.7 METRIC TONS !? WHAT THE HELL !? Btw i calculated the height and is 7.4m tall 💀

20 tons is a ludicrous estimate

Watch this being an early abelisaur in 2 years

I even have a name for it Brazilotyrannus Imperator "the tyrannical emperor of Brazil"

I'd name it Boitatavenator (" Boitatá - a giant snake with bull horns and enormous fiery eyes that crawls over the open fields at night. Sometimes described as a giant. fiery snake. Looking at its eyes blinds people. + venator "hunter")

Arguably, charcharodontosaurs could ill-afford record-breaking restrictions on their agility. How would a crocodile-brained ambush predator lug 20 metric tons into a pell-mell? Scattering a herd of colossal quadrupeds with little more than a gang of disorganized rivals, sidling up beside the nearest straggler, peeling off a worthwhile strip of flesh, turning tail, and navigating the gauntlet of fugitives ALL BEFORE drawing either a kick or a tail lash from any direction would have required nimble footwork as much as it would decent peripheral vision.

Wow never heard about this. Thx for continuing to put out such good content. Mike from Prehistoric Magazine

The mind blowing thing is that if every existing fossil on the planet is discovered it will still represent only a small fraction of ancient lifeforms that have existed.

Basically, the only TRUE challenger to T-Rex's throne is STILL Giganotosaurus.

Ah, yes! Another contender for the "Overhyped biggest theropod who turns out a lot smaller in real-life" awards. Spinosaurus was hyped as the T-Rex killer in JP3, then turned out to be Crocoduck a couple of decades later. Giganotosaurus was hyped to be double the size if T-Rex in the Ark games, just for it to be discovered that T-Rex is bulkier/heavier than it.

I only know about the new ichthyosaurs arguably the biggest marine reptile ever lived

If the media was always correct with their outlandish "bigger than Rex" headlines, T.rex would only be considered a medium-sized carnivore at that point.

This is really fascinating stuff. So many amazing dinosaurs await discovery. Mike

This was such a pleasant surprise. I was pondering how we could have know this caudal vertebrae even belonged to a theropod and you answered it, thanks!! As for this potential discovery!wow! How fascinating. I wonder if this caudal may even belong to a spinosaurid? That group was doing very odd things with their vertebral column. I can’t wait to here more about this megatherapod. A TWENTY TON theropod!!!?! How did this thing even move around on two legs?

Watch it get downsized in a week

Name idea: Natiaspectus Nati is born, aspectus is favored. "Born to be favored." Because it's a big theropod.

We have to name it Bostilssaurus

Vividen try not to overhype the most fragmentary remains ever challenge (impossible):

What would I name a giant theropod? Necrotitan, Titanovenator, Necrovenatorax. Something dramatic like that.

Until more material is out, I won't believe it then. Im gonna hedge my bets on it being a long boi. That mass would be too detrimental. 16 meters long and twenty tons? Sounds like a Vastatosaurus Rex from Skull Island.

I would call it Ultratyrannovenator

Though I agree that 20 tonnes is laughably exaggerated, there is still a possibility that a a predator rivaling T-Rex and Gigantosaurus in length (and maybe weight) isn't that big of a stretch. After all, this is the land of the titanosaurus

What kind of idiotic estimate is 20 tons? Wth?

Many of the dinosaurs that we found were killed in events such flash floods or died in tar pits.... Meaning that many or most of the dinosaurs we found died prematurely ..... Knowing that many of them kept growing for their whole life, we could assume that certain specimens, that had a longer life than those who died prematurely, would eventually reach bigger size and may never be discovered....

T-Rex, “hold my beer”

Man i can't belive it, I SO HAPPY that my country probaly have the biggest theropod( still i belive something larger have lived here) but for sure i don't thing it is like 20 tons, if i could think i think its a carcharadontosaurid, or its the carcharadontosaurus sp or a Giganotosaurus

If it ends up being the winner as biggest theropod, then they should call it Connorsaurus Immortra after the character Connor MacLeod from the film Highlander (1986), due to the famous line: *There Can Be Only One!*

I hope we find something like that kaimeren aquatic megaraptoran monarch.

Probably a fragment of a Sauropod or something: [Exists] Jack Horners Existence: [Rubbing Hands together] MY CHILDREN, WE SHALL ATTACK ONCE MORE!! THEROPODIZE IT! [Insert Rex battling the claims of a 20 TON CARNIVORE]

For mere tail fragments, this is not a solid claim at all. Still funny to think a giant came out of Brazil of all places.

I honestly think the size of whatever that thing is, is more likely to be 9-10 tons but I might be just stupid

Someone are talking about 200 ton sauropod and nobody bats an eye. Someone suggests that 20 ton theropod could exist and everybody loses their minds.

While I believe 20 tons is too much, I can see some sort of weight corelation here. Maybe T-Rex is the limit for Theropods, where they get heavier rather than longer? Which is why it gets so much heavier rather than longer? I mean T-Rex is possibly 12 tons, which is ENORMOUS

" the biggest carnivore the world has ever seen "

I would name it Megacuadalsaurus rex, translated to Big Tail Lizard King. Love you videos. Im currently try to use other therapods like carcharodontosaurids and megaraptora and 2 other genera tyrannosaurus for lols, and saurophaganax (my favourite along side Ceratosuchops and deinocherius) cuase of it possibly an ancestor to Carcharodontosaurs

Lembre-se meus manos e manas, esse fóssil é fragmentário, essa criatura pode ou não ser desse tamanho. E é mais provável que não.

The "Giganotosaurus" of JW is really a Acrocanthosaurus

If this does turn out true, the dino crisis 2 giga does have a irl counterpart

"Usurpator" would make the best genus name

Probably the only reason I watch these channels is because I know you are the kind of nerd that will directly take a look at the study and not just relay the click bait news from whatever garbage and clickbaity paleonews we usually get elsewhere. Thanks you for doing that.

Oh I'm gonna be quoting that "Fragmentary Specimen Alert!" 😂 That was gold. Also nice video, it was a cool "what if?" watch. Crazy how big your estimate was though was not expecting that.

This might be controversial, but the reason why we now think Tyrannosaurus is the heaviest is probably due to the fact that it has more numerous and more intact remains, and are better understood.

1.Basically I am not convinced by the estimate that based on fragmentary material. Although if said creature was really a Carcharodontosaurid,I would like to name the species after Incan deities. It would more thrilling if the fragmentary material came from a Megaraptora. Edit: 2. As some replies here wanted to name the dinosaur after Godzilla,I am curious about Vividen’s thoughts on Kenneth Carpenter’s thought experiment in 1998,in which he tried to classify Godzilla as some Abelisaur or Ceratosaur “Had Godzilla was a species of Theropod dinosaur.”

I’d name it “Kyukosaurus” meaning “Ultimate lizard”

3:40 What would I name a giant mega theropod? Megatron.

So if this were any other type of theropod; what do you think the size assessments would be for it like if it were say an Abelisaur or a Megaraptoran?

I live in the region, gotta start diggin'

I doubt the 20 tones, especially since we don’t even freaking know what it is.🤣

Imagine what is buried in the untouched regions of south America

If it is indeed a carcharodontosaurid, I would guess it is in the same size range as Mapusaurus and Giganotosaurus, so probably a 40 foot animal. Massive, but not astronomically huge.

As a brazilian i hope they name it ronaldinhosaurus

I'd probably name it Invictus Rex interfectorem: the undefeatable king of the killers.

Thats fossil is to fragmentary, they don't even know what it is. I,d take that with a huge grain of salt 😂

Gomez works. It's in the long tradition of giving giant theropods the most unintimidating names possible and I love that trend.

T.Rex size is a bit of myth at this point, and I explain why. We have arround 35 well preserved adult T.Rex specimens, and the average weight is arround or even less than 6000kg. Why we are constantly using the 3-4 biggest ones (which are clearly massive comparing to the norm) to compare with other megaterophods? Does it make any sense? Yes, some of them were build like tanks, but the average T.Rex was not that big or bulky. If we take a common sized individual arround 11.5 metres and 6000 kilograms and we compare it with Giganotosaurus, which in my opinion should be considered as the biggest terophod known for now, we see that this one is only represented by one quite well preserved especimen, and a very fragmentary second one. Just taking into consideration the holotype, we have a ~12.4 metres carcharodontosaurid, at 7000+ kilograms. Probability says that most of the individuals of a given species are way closer to the average size than extreme sizes, so we can asume that size as normal for now, specially when the second individual could be 3-8% bigger. In biology you take the average size to determinate which animal is bigger. If we got 35 adult gigas, or Carchas, ot any other megaterophod is very likely some of them would reach really huge sizes...

almost rival with ark giga?

Brazil mentioned.

Brazil mentioned???????

A theropod this size would only make sense if it was herbivorous or at least omnivorous like Deinocheirus, that’s i think the only possible way an animal this size could be sustainable, and that’s without addressing the possible limitations in terms of biomechanics

Spino giga t rex : who tfk are you

no matter what is uncovered nothing will ever match T-Rex brutal bite force and its strength.

you BETTER have some SERIOUS backup

I would unironically name it “Godzillasaurus” if it actually hit 20 tons,

Amazing. Someone on the server downsized this thing to just 6-7 tonnes, like, less than two days since this video came out 😂

I believe in the potential 16.8 meter length of this theropod, by calculation!

Can't wait to see the name of "Gomez".

Ah shit, here we go again

Lol I saw a few sources when I was a kid that claimed Giganotosaurus and Carcharodontosaurus were 16 and 15m respectively. I also recall 15m estimates for Saurophaganax.

it should be called Lustianisaurus after the fact that Portuguese is called lingua Lusitania in Latin, but also because of the giant ship called the Lusitania that is also the lesser known forgotten giant ship tragedy

bro these ain't megatheropods anymore these supertheropods

I would totally name it Savrasaurus (respective to the giant tail verterbrae discovered) its name meaning High vertebrae lizard