The Largest Predator To Walk During The Cretaceous Wasn't A Dinosaur?

If you to travelled back to North America, anywhere from 83 to 77 million years ago, you would find the lands covered with dinosaurs, many of which were giant. However, they wouldn't be the largest things you could 'run' into, as during those times that largest creature in North America was not a dinosaur, but rather a crocodilian, the Deinosuchus.
0:00 Intro
0:47 Discovery/Naming & Misclassification
1:25 original length estimate
2:00 The Four Known Deinosuchus Species
2:14 Size Estimates
3:11 Deinosuchus Vs. Sarcosuchus & Purussaurus (size)
3:34 Huge Deinosuchus Specimens
4:16 Modern Crocodillians Versus Deinosuchus
4:35 Deinosuchus Classification
5:00 What It Looked Like
5:38 Bite Force
6:55 Evidence That It Hunted Dinosaurs
7:42 Deinosuchus Limited How Big Other Predators Got
7:59 Ambushing & Death Roll Capabilities
8:17 Populations of Small-Sized Deinosuchus Across America
8:42 Growth Rate
9:01 Armor
9:41 Range & Habitat
10:12 Coexistence With The Mosasaurs
10:51 Animals It Lived With
12:16 Extinction
12:51 Special Announcement
Artwork in thumbnail by Caio Firme
Music:
Chee Zee Jungle - Primal Drive by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/...
Source: incompetech.com/music/royalty-...
Artist: incompetech.com/
Copyright Disclaimer under Section 107 of the copyright act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favour of fair use.

[@ExtinctZoo]

Like I mentioned in the video I'm looking for a video editor to help me out! If this sounds like something you'd be interested in shoot me an email at [e-mail] . No previous experience required, just a love of all things animals and paleontology :)

[@patrickperalta59]

very impressive the Crocs were as well as the Dinos , birds and the rest...........but the King of all animals both land and sea is the Blue Whale which is 100 feet long. the largest animal ever both past and present.

[@EmpressOfExile206]

When you say "finding appropriate media to match the script" are you saying the editorial position involves being handed _only_ a script and building the entire video from scratch? Or just that sometimes there isn't enough frames to last _the whole script_ without lingering for too long on a single image, therefore potentially needing to find a few more to smooth out the video's transitions?

[@Thee_mus1cradi0]

I mean I seen the build duncleosteus but man the dunkin shark hot rect

[@IceTitan12.4]

youtube.com/@Jeskio420?si=d1xA5Qnog-pzYOSj

[@busbyrh4037]

It is so refreshing to watch a video that is accurate, informative, and does not conflate sea or aerial creatures as dinosaurs. Your research has been excellent, I applaud you. Thank you. Busby RH.

[@pauldavis5665]

I had no idea the biggest crocs were as big as a T-Rex. That is crazy.

[@GiggyWiggy2086]

Same I knew there were giant crocs but not that big

[@Baneineiwardisreal]

T.Rex*

[@Cryonan]

Puru is the largest croc to ever live, though Deinosuchus is much stronger due to its stronger bite force (and puru is only a lil bigger)

[@robbybee70]

@@Cryonan do they have bite force estimate then?

[@RajRaja-wo3uu]

T-REX was even bigger.

[@garboplaysgames5233]

That's my drawing in the video! I can't tell you how surprised I was to see that lmfao at 2:13, thanks for crediting me ^^

[@ver3982]

Wow, awesome drawing

[@RamanNoodles01]

@@ver3982 dafuq is that emoji bro

[@ver3982]

@@RamanNoodles01 youtube emoji

[@frogbee9162]

@@RamanNoodles01 show me that gyatt of yours

[@RamanNoodles01]

@@frogbee9162 …what

[@smackarel7]

Deinosuchus deserves the title of King Croc.

[@theMenace985]

Agreed, or River Dragon

[@hcollins9941]

@smackarel7 Emperor Gator Giga-Gator Holy Handbag (jk)

[@DomiK-im3su]

chonk croc

[@jross9553]

Mortem gator

[@shaned7158]

​@theMenace985 River dragon is a awesome name. 👌

[@Misp7423]

Amazing work! Crocodilians are often totally underrated during the time of the dinosaurs.

[@jaysgotjokesofficial]

Rarely underrated

[@Bitchslapper316]

Underrated?

[@isaiahjones8668]

​@@jaysgotjokesofficial yea they were but in the last years they been getting clout. Before people were mainly focused on large theropods and marine lizards

[@paulietv2162]

Can you give me a source for any paleontologist who ever 'underrated' prehistoric crocodiles? Come to think of it, how would anybody even go about 'underrating' a large prehistoric carnivore, especially one that has stood the test of time and is still with us today? Actually, you have hundreds of upvotes which goes to prove that even illogical and false comments can be popular so well done 👏👏👏

[@haroldberman1341]

@@paulietv2162 shhhhhhhhhhhhhhhhhhhhhhh

[@outthewayna4407]

How ironic that the alligator is typically a underrated crocodilian and are always viewed as “inferior” to crocodiles yet the largest crocodilian to have ever lived was a giant alligator. I love when the underdogs win lol

[@arjunakorale6166]

Me too!

[@FatApatosaurus]

Well it's dead now and the crocodiles are starting to take over the size. Technically the crocodiles were the underdogs 💀

[@Sadpotatoirl2010]

@@FatApatosaurus what is Salty croc evolved from???

[@FatApatosaurus]

@@Sadpotatoirl2010 Probably some sort of prehistoric crocodile. That will always be the answer until we first hit the time when archosaurs just appeared.

[@Bitchslapper316]

@@Sadpotatoirl2010 Crocs have been around for 200 million years. Their basic design hasn't changed much over that time. There isn't much physical difference between American crocodiles (not alligators), nile crocodiles and salt water crocodiles. They are a bit different in size and much different in temperament. My point is any of these species can evolve to be very similar to the other over a few thousand years if it benefits them.

[@jurassictyrantkingYT]

Deinosuchus was a true crocodile which makes its appearance very significant yes it is now officially the largest True crocodilian that ever existed. And this crocodilian was my favorite as a kid when I first seen it in Prehistoric Park.

[@madsgrams2069]

I mean...it's PROBABLY the largest crocodilian to ever exist, because estimates for Purrusaurus are all over the place, since it's only known from cranial remains.

[@shadowsmith841]

​@@madsgrams2069if I'm not mistaken purrusaurus is more related to caiman and alligators so Deinosuchus would still be the largest croc ever

[@madsgrams2069]

@@shadowsmith841 Both of them are part of the Alligatoroidea super-family and therefore true crocodillians, but Purrusaurus is an actual cayman, while Deinsosuchus is a more basal member of the clade. Anyway, both are equally distantly related from the genus Crocodylus or the wider family, Crocodilidae, if that's what you consider to be an actual crocodile.

[@shadowsmith841]

@@madsgrams2069 just rechecked. Ya you're right both are equally related to crocodilidae. Still based on the recent estimates Deinosuchus remains the largest crocodilian of the two for now

[@arjunakorale6166]

@@madsgrams2069YES, size estimates for Purrusaurus are indeed all over the place & I too find a max length of +12 m very difficult to believe for Purrusaurus. In every scientific paper I’ve seen it quotes that Purrusaurus had teeth with a max length of 5 cm! I doubt very much that a predatory croc with 5 cm long teeth could reach 11 to 12 m or more. I believe that 10 m is a more accurate maximum length for Purrusaurus.

[@gattycroc8073]

6:05 God I love Raul Martins illustration of Deinosuchus attacking a Tyrannosaur and the fact that it was use as a cover for the tremendously underrated documentary When Crocs ate Dinosaurs (even though it did not appear in the doc itself) just shows how fantastic it is. by the way I would definitely love to see a successor or two since Crocodylomorphs definitely need more attention in paleo media.

[@randomgamerdude98]

Iconic

[@Oziel11]

Deinosuchus didn’t live with Tyrannosaurus, nor would it prey on such an animal, large prehistoric crocodilians really are overestimated. Deinosuchus was a predator, and predators kill to survive, which means it would be hunting easy meals, which certainly doesn’t include dinosaur the same size as it that also has very good chances of escaping or fighting back and killing it. That’s like depicting a modern American alligator hunting a black bear on land, it honestly just seems like a way to get people interested in underrated animals.

[@joet7136]

I got that dino art book. The cover is incredible.

[@KhaoticKarma18]

@@Oziel11They didn’t say Tyrannosaurus, they said Tyrannosaur. If I remember correctly, Deinosuchus lived with either Albertosaurus or Gorgosaurus

[@Oziel11]

@@KhaoticKarma18 Oh, okay. Thanks for the clarification. Also yes, they likely did live amongst Albertosaurus and I think Gorgosaurus as well (I’m not sure) but I doubt they would prey on them, as modern crocodilians aren’t interested in preying on the other apex predators of their habitats.

[@AmazingYutyrannus]

Deinosuchus is one of my favourite prehistoric animals ever, it was just so massive and interesting.

[@lindanorris2455]

AND HE WOULD THINK THAT YOU ARE YUMMY!

[@mottthehoople693]

@@lindanorris2455 only an Hors d'Oeuvre!!

[@kecaw]

I just love how Crocodiles/Aligators in general when it comes to design were like " nah we good" and just became more compact. And it only happen because their food also got smaller.

[@Guillaumelapomme]

Yeha it's like the turtles, they cracked the code WAY before everyone else and their modern representative are proof of it, it's exactly that like "na we good, we got it but you keep hanging on out there yeah?"

[@BulkierEmu050]

Extinct Zoo, this was a very nice take on Deinosuchus, it's really incredible how Deinosuchus Hatcheri could reach 15meters long and 15 tons... It would be nice if you talked about Astorgosuchus on detail as it is currently the 2nd largest crocodilian we know of.

[@jross9553]

And Purussaurus would probs be 3rd

[@BulkierEmu050]

​​@@jross9553it is, with an astonoshing 11 meters long and a weight of 6 tons.

[@jross9553]

@@BulkierEmu050making the undisputed king of caimans

[@prasanth2601]

​@@jross9553 What about Ramphosuchus?

[@jross9553]

@@prasanth2601rhampho is probs 4th or 5th so it’s a king gharial

[@Radioactivetoxic69]

The deinosuchus should become the next Jurassic World movie villain

[@kledus420smith8]

Im going to dream it now 😂😢

[@mhdfrb9971]

Although Deinosuchus is most famous for preying on dinosaurs (and there is some support for this), large sea turtles almost certainly formed a much larger proportion of its diet: being semiaquatic and living in coastal areas, it would run into aquatic prey far more often than land-based prey, and sea turtles (especially the really big ones from the Cretaceous) are big enough to satisfy its appetite. Not to mention that Deinosuchus, like the living American alligator, has extensive adaptations for bite force, cracking even the toughest turtle shells and would be able to crush most turtles in its jaws. I'd imagine the turtles had an advantage in open water due to better mobility. Crocs aren't slow swimmers, but compared to things like sharks or cetaceans they're still not that fast or maneuverable.

[@vinny184]

Large sea turtles were adapted for more open ocean habitats and their strong foreflippers would have made them fast swimmers. They would definitely hunt them during breeding seasons. Or is there any fossil evidence of what you’re saying? It would also put them in direct competition with large marine reptiles so niche partitioning would push it to ambush hunting or shallow waters.

[@mhdfrb9971]

​@@vinny184I'm definitely agree with your last point.

[@Pistolita221]

This is true AF, largest crocodilians always evolve next to the largest turtles.

[@niocriste2705]

I wouldn't say "almost certainly", again, as you said, Crocodiles have a rather limited aquatic mobility compared to true aquatic marine predators, and as seen in modern day sea turtles are capable of reaching higher velocities when swimming than extant crocodiles. There's no doubt that they would have just as much difficulty hunting marine reptiles as they would dinosaurs. There are multiple Nile and Saltwater Crocodile populations that do hunt terrestrial prey more frequently than aquatic prey simply because of availability, in part due to their generalist nature. At the same time, while they were inhabitants of coastal areas, there's nothing that confirms they were anymore oceangoing than extant Saltwater Crocodiles and based on what we know about Saltwater Crocodiles they will also switch prey to whatever source they desire. Keep in mind this too, the study that found a marine-based diet for Saltwater Crocodiles used data from Northern Australia, a region that prior to the introduction of feral ungulates, was deprived of terrestrial megafauna for tens of millennia. Arguably Purussaurus would be a better example of a crocodilian that hunted turtles as their primary prey source as their jaws exert an equal amount of pressure on the front and back end unlike most other crocodiles.

[@lonniebrunner483]

They found 8 giant turtle shell's while building a road in show low ariz. That's about 40 mi. From the petrified forest. There's a good chance that's exactly what they were eating.

[@derrillhutto1152]

I love the fact that you said "known" to exist seeing as fossils are probably 1-2% of recorded species. We will never know with certainty what was the largest carnivore to have ever walked this planet. But what has been found is the things of nightmares.

[@Woronoa]

That percentage is too low, quit dreaming. Most ancient animals have been recorded

[@julianeder4699]

​@@Woronoa This may be true for animals that existed relatively close to the present day (sabertooths, mammoths...) but once you turn the clock back just a few million years further you will notice that remains become less common and more fragmented thanks to stuff like erosion the shifting of the tectonic plates destruction of the source material by human hand... A well studied example for that would be T-Rex its estimated that about 2-2.5 billion of them existed throughout its 2.5 million year reign yet we have uncovered only about 100 of them with only about 40 of them being somewhat complete. Go back another 30 million years to the time when Giganotosaurus Mapusaurus and Carcharodontosaurus walked this earth and the number of recovered fossils shrinks down to single digits with the remains typically consisting of nothing but a few teeth and the occasional femur.

[@william3100]

​@julianeder4699 but in the few remains we have found, we already know a lot about them. So I doubt we'll find something completely crazy and perception overturning like an ancient intelligent dinosaur civilization or something. Most things we haven't found will be things we can predict would exist or something at least just a little bit unexpected but not earth shattering! There's is much less of a chance of that happening. The percentage is most definitely too low. It's not all just guess work or bring completely in the dark. We're not in the medieval ages or 40s any more, and things like spinosaurus and discoveries concerning it are very rare and not indicative of most things. You underestimate how much we know now.

[@julianeder4699]

@@william3100 Last year alone we discovered 140 extant animals that have never before been described. Truth is we dont even know all the animals that walk our earth at this present moment let alone the countless creatures that roamed the earth in the past 3.7 billion years. Granted most of them would be microscopic while others simply didnt have any bones that made fossilization possible but every year we uncover atleast one new giant from the past (the swiss tyrant for example in 2023) Its estimated that less than 1 in 10000 bones will fossilize and the odds of us stumbling across said fossil are even lower so us knowing 1% of all animals that ever existed is already a quite optimisitc estimation Im not sayin that we will find anything that shatters all our believes and understanding of these creatures nor did i ever mention anything about intelligent dinosaur civilizations... the thought of that would be silly. Im simply stating that any ''biggest predator'' we know of today will most likely be dethroned in the next 50 or so years by some other carnivore we simply didnt yet unearth. As for the world of today the vast majority of our 8 billion people do still live in areas where technology and education are more reflective of the 40s

[@BaneSIlvermoon]

​​​@@william3100The thing is, it takes very rare conditions for fossils to even exist. If estimates of 2.5 billion living t-rex are accurate, if we found one tenth of 1 percent of them, that would be bones from 2.5 million different skeletons. We barely have triple digits. It's very, very likely that for the majority of extinct species, we will never find any evidence they once existed. There's almost certainly more dinosaurs that we will never see a fossil of than there are species that we have identified.

[@supernus8684]

One interesting thing to note about crocodiles in general is that sizes can vary immensely between individuals and also they grow seemingly until they die. So making a maximum size estimate would be difficult and chances are this thing could get as big or even bigger as the maximum estimation given it was a gifted individual.

[@seanmckelvey6618]

I can't even comprehend how someone could come to the conclusion that this thing had a "fairly weak bite for it's size". I mean, one look at the skull should tell you otherwise. Deinosuchus was a monster of an animal, and I would not be surprised at all if it was indeed the apex predator of the regions it got the largest in. They certainly would have made any body of water within their range a very risky prospect.

[@ericknorskr8568]

About the bite size. It's snout is relatively not long compared to its skull size . and bite power is Long=strong

[@doomboi789]

​​@@ericknorskr8568 that isn't how bite power estimation works. Shorter and more robust snouts can also produce immense bite forces. Bite forces in crocodilians are typically estimated via potential muscle attachment points on the jaw, such as the retroarticular process at the back of the lower jaw or the space around the base of the jaws, not the length of the snout itself. Deinosuchus skull also yields even more evidence of a powerful bite, due to both the incredibly tough teeth and the immensely robust skull. Also, are we looking at the same animal here? A Deinosuchus jaw is far from short, it's proportionately much longer than any other alligatorid.

[@vault_dwelIer]

Scientists do this a lot. Creature X has massive claws? Only a matter of time before someone concludes they were too brittle to be used as claws. Creature Y has gigantic armored plates on on its body with an enormous thagomizer? Well some one will come to the conclusion they couldn't possibly be used as defense or offense. Arguably these ideas ultimately give us better understanding when they're refuted.....but a lot of them fail the immediate common sense check.

[@seanmckelvey6618]

@@vault_dwelIerjust because something can be used for one thing doesn't mean it can't be used for other purposes. I agree, science can often get too absorbed with nitty gritty details and forget that, in the case of paleontology, we are talking about what were once living, breathing animals. Like modern animals many dinosaurs certainly did things that, in theory, they shouldn't be able to do. Nature is messy, complicated and rarely is a feature only for one single purpose.

[@seanmckelvey6618]

@@ericknorskr8568No, long does not equal strong. If that was true then a gharial would have a higher bite force than a saltwater crocodile, and that is demonstrably not the case.

[@air9music]

I think it'd be helpful at 4:26 to clarify what "8 times smaller" means - an average saltwater croc weighs around 400-700 kg and has a length of around 4m so both the length and the weight are much more than 1/8th that of a Deinosuchus, probably around 1/3rd. Still puny, but not "8 times smaller" puny.

[@alvarocuchacovich8166]

It’s supposed to weigh over 8 tons which is over 10 times the weight of a crocodile

[@xpertrex5991]

When talking about the animal kingdom, size is almost always a reference to weight, unless someone specifically states they’re talking about length.

[@SternaRegnixTube]

What’s worse is there was a land croc which was basically an oversized reptilian lion but faster on steroids

[@RedCommunistDragon]

Kaprosuchus I bet

[@jross9553]

Barinasuchus or Quinkana

[@conradfrancis3174]

Postosuchus

[@joshuagumpert8910]

Speed can’t be proven. All heavy speculation.

[@SternaRegnixTube]

@@joshuagumpert8910lions aren’t that fast

[@assassinspino2112]

I love that someone finally gives Deinosuchus the recognition it deserves, for a long time Sarcosuchus took the title of "SuperCroc" and the media only focused on it, and while I consider it an impressive animal, Deinosuchus deserves much more recognition and fortunately time and new studies are giving it.

[@jackstraw4222]

iv seen sarcosuchus on display and its impressive ,but its only around 9-10m...

[@barryauguste9734]

Your channel came up by chance on KZbin. I have since subscribed loving your no-nonsense style of presentation. Not relying on flashy background music or ostentatious editing, your video's are endlessly fascinating and enjoyable. Thank you.

[@UcheIfeNwabuoku]

Wow, this video was awesome, I didn't even know about a some of these animals. There are so many of them that I may not know about. Great video man, really informative, educational and entertaining!!!!!!

[@Compsognathus09]

This video really has enlightened me on this amazing prehistoric crocodile, thanks Extinct Zoo.

[@posticusmaximus1739]

The Age of Reptiles for sure, with the main powerbrokers above water being Archosaurs

[@jessehutchings]

It's just amazing the variety of animals in these ancient ecosystems. Just imagine getting to see it for one day.

[@derrickbonsell]

Even more impressive that it was on the alligator side of the crocodilians. Today the largest crocodilians are crocodiles and not alligators.

[@Sadpotatoirl2010]

Crocs in general are my favourite animal ever😍 These guys is a metal!

[@MovingWaif]

Love this channel

[@ZenoxSC]

Great video love the content ❤

[@vittolorenzobravo6851]

ayo thx for doin my request, i appreciate it

[@nathanielrobles3284]

These needs to be included in future jurasic movies.

[@sea_triscuit7980]

I found myself repeating, "holy crap, for real?!" About 10 times during this video which means y'all did another amazing job with this one! I grew up in Charleston, SC and went to a place called Cypress Gardens where they have an Alligator enclosure with gators that are too big to be safe enough to have roam the park. They're 10 ft on average and the biggest they had was a 14 footer. When you said that the Deinisuchus was moreso related to the alligator instead of crocodile I could believe it. Alligators don't get enough credit in my opinion. Their jaws being so much wider and their heavier weight make them deadlier in my opinion.

[@finwefingolfin7113]

I think you should visit Australia and get up close to an old salt water croc ( 23 feet long and 2200 lb)... you might change your opinion on which is more deadly!

[@luis-mora4444]

Thanks for the interesting content, friend

[@gordonbingeman1604]

Great video and nice job on the animation sir

[@soudino2723]

you forgot astorgosuchus, astorgosuchus is as big as purrasaurus and it lived in Pakistan, its possibly the largest crocodilian of the Oligocene maybe even of the Cenozoic

[@joshuaW5621]

You would not wanna be rowing your boat near a Deinosuchus.

[@saladinbob]

Brings a whole new meaning to the classic line "we're going to need a bigger boat".

[@petergianarakos4439]

Great vid! Very informative and interesting. Thanks!

[@vishnunaidoo3258]

Informative lesson!Thanks!😊

[@darthcheney7447]

Maybe the closing of the Western Interior Seaway had something to do with Deinosuchus's demise.

[@yissibiiyte]

11:35 Just a nitpick, but the correct term is ceratopsians, not ceratops

[@claudiamanta1943]

Exceptional 😮Many thanks for sharing ☺️

[@GoldenHordeofBerke]

Always fun to learn about Deinosuchus. This and Sarcosuchus are gorgeous 🐊

[@AbbeyBominable-no8vl]

Deinosuchus is one of my favorite prehistoric crocodilians

[@josewayneoninguemd7740]

Love the vid but when u saied purusaurus size is 8 tons, well it is about the holotype that wasnt fully growth, we dont have found a adult fossil but possibly was as big or bigger than deinosuchus

[@wasumoto457]

Love the prehistoric park footage inclusions ❤ I loved it growing up I still have the discs for them and they still work

[@deadlydiamond]

I'm so glad I found a channel that I can not only bingewatch while eating/getting ready for school, but also one that talks about paleontology

[@archosaur_enjoyer824]

The fact that deinosuchus hatcheri is like 15 tons just makes it even more scary

[@ChurchofgodMedhukkummal]

That's not a fact

[@BaneSIlvermoon]

Croc weight estimates are very much guess work. We're not even good at estimating the weight of modern crocodiles unless we have a complete skeleton to work with. But regardless it's a truly massive beast. Based on today's crocs though, you have to wonder how fast the largest ones would move.

[@user-uh7mt4zy7u]

Then what is then​@@ChurchofgodMedhukkummal

[@mitchellskene8176]

My guess as to why Deinosuchus went extinct is that the closing of the Western Interior Seaway (which was beginning to happen around the time it disappeared), in combination with the uplift of The Rockies, caused the suitable habitats for Deinosuchus to disappear.

[@Bitchslapper316]

You are acting like those events happened over night. That's a process that takes millions of years.

[@Woronoa]

@@Bitchslapper316They went extinct because they were too strong

[@andrewjazdzyk1215]

​@Bitchslapper316 you're acting like deinosuchus disappeared overnight.

[@evilcrashbandicootthetouho2753]

Actually the crocodile today is the same this giant crocodile 🐊 the size downgrade over the years

[@Bitchslapper316]

@@Woronoa A species won't go extinct because they are to strong. It's the opposite

[@supernus8684]

Its strange how they can estimate its bite force to be weak when it is well knows that crocodilians in general have some of the most impressive bite forces of any animals. I mean its kinda an essential part of the concept and the concept has been well established and successful for millions of years.

[@graceypatrick]

Fascinating and love this content

[@jondon1079]

Hello, do you happen to know where the picture at 0:19 is from? It looks like an image from an old dinosaur encyclopedia (or possibly story book?) I had when I was a child, and I've been scouring the internet trying to remember it's name was!

[@qlip]

have you tried reverse image search

[@andronmillerjr.9158]

Always been interested in the answer of if purrusaurus or deinosuchus was bigger. Got my answer (for the time being)

[@arjunakorale6166]

In all the scientific papers, it is claimed that Purrusaurus had teeth with an absolute maximum length of 5 cm (or 2 inches). There is no chance that a predatory croc like Purrusaurus, with teeth that small, could be soo huge as 12 m (unless it was a plankton-eater like some other giant crocs). A 10 m max length for Purrusaurus is much closer to the truth.

[@dee6349]

Love the New Thumbnail

[@tgdomnemo5052]

Great content ❤

[@raylopez99]

I'm sure if you hand raised them from hatchlings they would make adorable pets. As long as they were fed.

[@boiledliddo]

I've seen a few pet alligator videos that can be hugged by the owner. Of course, those were quite small, about the size of a dog.

[@FleshWizard69420]

You would have to feed an adult one a bison or two lmfao

[@randydewees7338]

Support deinosuhus?

[@Bitchslapper316]

I remember when they thought a Liopleurodon was the size of a blue whale. To bad we can never get an accurate account of what was happening 80 million years ago. I have no doubt it's nothing like we think and it would blow our minds.

[@jadejoseph9969]

Good video. Liked and subscribed.

[@firstnamelastname6216]

Great vid!!!

[@QuintenWhyte]

Deinosuchus: The Mega-Gator

[@johnmaguire3608]

"The greatest threat to dinosaur life was climate change. And it's still threatening us today." Boe Jiden.

[@emperorclaudias3316]

What

[@pruephillip1338]

Yes, there's always been climate change - but this one is helped along by humans, and is happening super fast with little way for animals and plants to shift due to roads, crops, cities etc in the way.

[@johnnymarshall2605]

Climate change😆🤪😜😝🧐

[@johnnymarshall2605]

The biggest threat to the world is; uneducated gullible people

[@MooronaX]

Thanks for my suggestion :D

[@ShiftyKen08]

Great video!

[@ab_darkuniverse]

Purussaurus seeing this: Am i a joke to you? Great video, love ur work

[@archosaur_enjoyer824]

Yes Purrursaurus is smaller

[@pigbenis5295]

Yes

[@JohnnyVincent13]

​@@pigbenis5295your nickname is cool, but if you changed into bigpenis it would be cooler

[@TheVillainInGlasses]

I thought Deinosuchus was considered an Alligatoroid? Nvm, it's mentioned.

[@SternaRegnixTube]

XD

[@TheVillainInGlasses]

@@SternaRegnixTube Yep, could have deleted, but figured I'd leave it up for exactly that reason 😅

[@indubitablix5797]

Something about your voice makes the information very cobsumable. Like it just stays in my brain.

[@jimhontz7313]

Excellent commentary.

[@fabriziobiancucci7702]

Sarcosuchus: "Are you kidding me!? Am I a joke to you!?"

[@lucilledodger6121]

Large yes, but not a crocodilian

[@fabriziobiancucci7702]

@@lucilledodger6121 Deinosuchus too wasn't a crocodilian. Both Sarcosuchus and Deinosuchus are crocodiliamorph

[@ivanhoemallari1412]

​@@fabriziobiancucci7702 both Deinosuchus and Purrusaurus are both True Crocodilians, Sarcosuchus is a distant relative.

[@ghazyamr1347]

Sarco just long but not quite thick

[@fabriziobiancucci7702]

@@ivanhoemallari1412 According to wikipedia, both Deinosuchus and Sarcosuchus belongs to the super-order crocodilyomorpha, and they both belongs to the sub-order crocodylia. The only difference is that deinosuchus is closer to alligators

[@jasenmorris8295]

What fascinates me about this thing is that (maybe) it behaved similar to modern saltwater crocodiles, and the only other critters that could pose a potential threat to it were Mososaurus, Cretoxyrhina, Daspletosaurus, Albertasaurus, and Gorgosaurus and when they were young (hatchlings) they were possibly under threat from Troodon and Pterosaurs.

[@dagoodboy6424]

Angelomasticator is a new one for me. Great video.

[@nicknchicken5381]

Lake Placid irl

[@johnh539]

verry interesting . I like the inclusion of the other species as placing dinosaurs etc in they're eras is often difficult to picture.

[@daniell1483]

The icing on the cake here is that Deinosuchus is closer to an alligator than a crocodile. Truly an amazing creature!

[@user-yb5ex9gx6h]

Deinosuchus is not the largest crocodilian. The largest crocodilian is purussaurus.

[@SternaRegnixTube]

Purrasaurus is shorter and lighter but deinosuchus was an alligator relative, so is purrasaurus so none of them were the biggest croc

[@bossturner9540]

Technically, Purussaurus is a Caiman.

[@user-yb5ex9gx6h]

Purussaurus is a crocodilian caimans are a branch of alligatorids and alligatorids are crocodilians. Also purussaurus is longer than deinosuchus.

[@The_Man_Of_Steel_69]

Purussaurus is 12.5 meter long Deinosuchus is 14.5 meter long

[@jross9553]

@@bossturner9540caimans are crocodilians

[@JacePatterson-xs5by]

I think deinosuchus should be king of the gators then the purrasuchus should be king of the Crocs

[@SternaRegnixTube]

Agreed…

[@jross9553]

Astorgosuchus would be no. 3 . Also Purussaurus is a Caiman so it would be the undisputed king of caimans

[@Imliterallygodzilla]

it's crazy that those were some of the biggest predators ever. And we are fortunate enough to be able to get a glimpse of what they looked like back then since they really haven't changed that much in appearance.

[@DarkDiamond-jx2gx]

I wonder if the babies also made the lazer "pew" sounds like modern crocs lol

[@cu1tc1assic]

Purussaurus, which lived until 5 mya, being the same size but not having to compete with dinosaurs: am i a joke to you????

[@archosaur_enjoyer824]

Purrursaurus brasiliesis got nerfed

[@SternaRegnixTube]

@@archosaur_enjoyer824XD

[@sharkygames9633]

purussaurus as mentioned in the video, was only slightly smaller

[@TheFunkhouser]

Very interesting!!! ❤

[@user-qg1mw5tz1q]

good to see my favorite extinct crocodilian in youre video

[@September2004]

Titanoboa, megalodon and now this guy.

[@deathhimself4676]

Great video.

[@lonniebrunner483]

I live about 10 miles from the petrified forest in n.arizona. I found tracks about 6' across. There right next to a cannon in the rock. They have a croc in the petrified forest. 😮

[@roachman03]

Your ability to pronounce all these scientific names, 👌🏾 that is art.

[@horvathbenedek3596]

Shwimmeri? My boy Ross finally did something memorable.

[@jeffpollard7304]

You speak well with obvious confidence on dinosaur ‘speak’!🧐

[@isaiahjones8668]

Deinosuchus is amazing, crocodiles were my favorite animal but when I discovered the deinosuchus and other prehistoric crocs I was reasonably astonished. Also its really cool to me that crocodilans hunting strategies have been the same all these years.

[@SuperSaiyan_Anjanath]

Speaking of alligators, since Deinosuchus may have looked like an Alligator, the snout may have served a purpose to modern alligators as well... This could be a much better advantage for Deinosuchus to hold on to bigger prey and maybe crush the tough armor of the dinosaurs and other animals it ate....

[@privatedata665]

This video is obviously a huge croc , and a damn good one too

[@trvth1s]

Likewise, the largest predator today that can walk on land is a salt water crocodile, which can get larger than polar bear. With that said, crocs are subaquatic so it's a bit of an unfair comparison.

[@Dr.Ian-Plect]

Well, changing the wording to 'that can come onto land' makes it something else.

[@trvth1s]

@@Dr.Ian-Plect true, but on land a crocodile or a seal isn't much if a threat unless you intentionally run into them. I wouldn't compare them to a siberian tiger hunting buffaloes

[@Dr.Ian-Plect]

@@trvth1s I'm not sure your reply relates to what I meant, I'll just restate my thinking. I meant there is an animal larger than a saltie that can come onto land, and it's a predator. Indeed _it_ is _the_ largest predatory animal (or animal whatsoever), that can freely come onto land.

[@trvth1s]

@@Dr.Ian-Plect what is it? An elephant seal?

[@Dr.Ian-Plect]

@@trvth1s Yes! Specifically the southern species. I think that confirms your reply misunderstood what I was getting at.

[@phyllisbronock2745]

Fun bit of alternate universe at 12:05. Some tortoises and a hadrosaur with an industrial plant in the background. The Siulurian Hypothesis at its best!

[@bikelifenezha3061]

i first learned about the Deino while watching Nigel Marvens Prehistoric park in Kindergarden xD. I#Ve been fascinated by it ever since

[@ColinFreeman-kh9us]

Great channel, dreaming of saurus’.

[@papwithanhatchet902]

I always find it hilarious when animators show dinosaurs roaring all the time. How many reptiles today roar, *ever?* Some crocodilians make warning sounds and some have mating sounds, but not one “roars”, and it’s likely dinosaurs didn’t, either.

[@mahakalaeliluminado7675]

Greetings from San Ciro in San Luis Potosí in México

[@ByWayOfDeception]

I can't imagine there being a breeding population of this monster. Great video.

[@michaelreed4744]

Hello. There are some fossils of Deinosuchus in the Mississippi Museum of Natural Science, in Jackson MS.

[@70stunes71]

Excellent

[@dukecity7688]

My studio is 30 ×20 feet. I think about this. My head is spinning just thinking about this monster. Wow oh wow. just f'n awesome. This was great.

[@DiscountNoob02]

If people want a real life Jurassic park, it already exists. Its called Florida. And Australia now that I think about it.

[@charlesroberts3650]

Very good!

[@SeeThomasHowl]

Nice job, Napoleon Dynamite!