The biggest land predator of the Cenozoic WASN'T a mammal...

[@skeepodoop5197]

Yo! Thanks for answering my question!

[@dino-gen]

Any time! Thank you for submitting it 😊

[@danilodesouza6461]

I can only imagine the terror their prey felt. It would be horrifying to meet one of these in the wild. Nice beard, mate

[@dino-gen]

Right?! Also thank you 🙂

[@subraxas]

@@dino-gen Almost like Henry Cavill's. 😛

[@sarastepp2705]

I love your videos. You are so knowledgeable and the way you present the information makes it easy to pay attention. I love learning about all the different animals that used to walk the earth. I also love learning about the history of civilizations as well. Thank you for doing these videos.

[@dino-gen]

Thank you so much! I’m glad it’s resonating with you as I love teaching about it, hope you enjoy what’s to come!

[@c2099]

Dino-gen uploads? Quick watch on my part, and always a like. Love your videos mate, carry on.

[@dino-gen]

Thanks, will do! Appreciate you enjoying them 😊

[@hookeaires6637]

In southwestern Pennsylvania, I live adjacent to a vigorous down cutting stream in the deep hollow of a forest where shale formations of what I assume to be of the Carboniferous period yield many fossil impressions of large plant life and have found what is clearly a feather impression. It’s all so fascinating.

[@theomasole5105]

Ancient south America had some truly monstrous wildlife

[@tyrannotherium7873]

I hope someone makes a Skull replica of this animal or a figure

[@mrpalaces]

Last year I visited the museum at the Villavieja formation. There were no Barinasuchus, but they had some Langstonias and Purussaurus fossils among many others. Sadly, the roads towards the museum are terrible and they will close it to visitors due to lack of funding.

[@daxbashir6232]

That's sad! What a great shame! 😞

[@tegrin853]

I just know i'm here early for a huge channel.

[@richardbernard6845]

excellent video Joshua! bravo

[@daxbashir6232]

"Joshua"? His name is 'Ryan'.

[@The_Story_Of_Us]

Barinasuchus was an incredible animal, however I would dare to say that arguably more fearsome were the giant mammalian carnivores. Animals like Arctotherium angustidens, Simbakubwa, Panthera fossilis and Daeodon. Being a mammal comes with great benefits such as heightened endurance and greater intelligence. And of course, lineages like bears and big cats live on to this day as apex predators while Barinasuchus and all sebecids with it went extinct midway through the Neogene.

[@frost7463]

Those lineages lived and sebecids died out solely because of global cooling. It was definitely more fearsome than any Cenozoic mammalian carnivore, the size gap alone and head a meter long makes that obvious.

[@daxbashir6232]

💚 💚 💚

[@jabbarmuhammad]

Primordial land crocodile excellent predator

[@LoudmouthReviews]

Did Sebecosuchids have lips or were they lipless like todays crocs?

[@dino-gen]

They were likely lipless like today’s crocs 🐊

[@daxbashir6232]

@@dino-gen So no need for lipsticks then. :D

[@discobolos4227]

👄 💄 😀

[@aleague23]

It's the biggest land carnivore of the Cenozoic

[@ayobnazir]

I think he said that already

[@alexandermorrison1010]

I have always pronounce Sebecids as Se-bec-ids. Also given the taller skull and more room for those imposing jaw muscles Barina may have possessed the highest bite force of all terrestrial predators in the Cenozoic. I'm currently working upon a real life sculpture reconstruction of Barinasuchus on my channel. If any of you are curious, give it a peak. It is under the Archosaur tab with the titles "Sebecid Project"

[@dino-gen]

I certainly will 😃

[@PteranoLiv]

Venezuela doing the Cenozoic: amazing landscape filled with so many cool animal and the largest land predator of the Cenozoic Venezuela now: SUPER BIGOTE VS ELON MUSS Edit: sorry for bringing politics into this I just need to vent the shittiness of my country

[@SD-wj9bv]

Do u think it’s possible that some sebicids like Barinasuchus had metabolism with some endotherm traits? Especially since we know there ancestors might of, been endotherms and I would’ve imagine that sebicads, have the evolutionary anatomy for an endothermic lifestyle. Processing theropods like features already, and having some modern representation for large wondering terrestrial reptiles in varanids, and since varanids possess a higher metabolic rate higher than most reptiles. Would that mean since sebicds are homogeneous to theropods, with Some possessing endothermic metabolism or some middle ground to it?

[@dino-gen]

I certainly wouldn’t discount that idea, I’d say it is possible, but then it would be a question of where it might fall on that scale. Great food for thought though!

[@pugbeast-jf2nl]

I pronounce it like I would the Egyptian god Sebek/sobek. Sebecidae, I just say the Egyptian gods name and add “idae “ to the end. Sobek’s name can be pronounced in many different ways. But I usually just say “Seh-bek” or “soh-bek”. In this case I pronounce it like “soh-bek-iday”. Idk if there’s really one way to pronounce Sebecidae, like many scientific words like niche, or epoch. But maybe that helps idk lol. Sounded like you were pronouncing it fine to me tho

[@pugbeast-jf2nl]

Or “Seh-bek-iday”

[@daxbashir6232]

Or "Jumma Lahma Ding-Dong". :D

[@myramadd6651]

Do you think the land crocs ever encountered titanoboa and its relatives?

[@erichtomanek4739]

So the Giant Arthropods of the Carboniferous, could be an example of "Island" Gigantism.

[@Lucas-Lee-1987]

No. The giant arthropods from the carboniferous could be an example of being big due to the larger oxygen supply in Earth's atmosphere in this period. The concentration of oxygen was at least 25% higher than it is today.

[@Khaloofidino]

No if you want an example of gigantism hateg island where hatzagoptryx lived would be a great example or Mauritius where the dodos lived

[@daxbashir6232]

No!

[@LouisFryer-q5r]

which carnivore is bigger in what and size arctotherium or barinasuchus

[@Boss-ot1iy]

Barina, most likely. Arctotheriums max size estimate, if I remember properly, is around 3200 lbs.

[@AncientWildTV]

Barinasuchus is generally considered larger than Arctotherium comparing their lengths. Barina could reach lengths of around 23 feet, while Arctotherium typically reached heights of about 10 feet on its hind legs but was shorter in overall length

[@Bandersnatch41]

How did the terror birds cope with this competition from an even larger predator? Is it possible they became prey themselves, or they just avoided each other as much as possible?

[@daxbashir6232]

The giant land crocs did not hunt that often (once a week tops), since they were cold-blooded, so there would not occur that many clashes over potential prey. Plus the Terror Birds could also afford to take on much swifter animals.

[@homuraakemi493]

I thought you were gonna say my mom

[@daxbashir6232]

😀

[@stevenlaube7535]

there reports of a sort that claimed there were up to 6 land croc's ranging from 6 m to 1 meter in Australia living along side lizards of the same or larger 1 meter

[@shibalikchakraborty5344]

Please, Answer my question in the next video. Purussaurus. Why was it so massive? it was reaching sizes close to deinosuchus while the animals deinosuchus lived alongside were massive dinosaurs. purussaurus didn't have any such colossal prey that I could find. So why the enormous size? It is almost always the case with macropredators that it is to hunt a huge prey whenever a predator grows to huge sizes. For example, saltwater crocodiles growing huge to hunt water buffaloes, nile crocodiles growing huge to hunt zebras and cape buffaloes and so on. So why did purussaurus grow so massive? The largest land animal i could find that coexisted with purussaurus was toxodon which was a little bigger than cape buffaloes. So why the colossal size difference between purussaurus and nile crocodiles while they hunted prey about the same size? Were there smaller species of cetaceans that lived in the amazon river alongside our monster caiman? or was amazon river a nursery zone for baby whales to escape the more fierce predators in open ocean (like megalodon and leviatan whales) and purussaurus simply took advantage of those young whales. Would love to hear more about this.

[@daxbashir6232]

You must share this comment on the dedicated post within this channel's "Community" tab, otherwise he will most likely not get around to attend to it.

[@shibalikchakraborty5344]

@@daxbashir6232 thx

[@joseph-pf5fr]

Is this animal bigger or smaller than saurasuchus

[@dino-gen]

This guy was likely bigger than Saurosuchus, though that’s not exactly a small animal either!

[@aleague23]

Bigger. It's the biggest fully terrestrial carnivore

[@daxbashir6232]

@@aleague23 Even larger than a Rancor? :D

[@aleague23]

@@daxbashir6232 kzbin.infoMxVWymkeg5c?si=GRxt88AkRE3EKKMw

[@aleague23]

@@daxbashir6232 What is rancor??

[@brucefsanders]

Loving your video content... But you are even more distractingly cute in this video, that it makes it harder to concentrate.... 😂😂😊

[@dino-gen]

I’ll try and tone it down 😂

[@robcanisto8635]

First to the hunk buffet this time, sorry babes ❤❤❤

[@dino-gen]

Well, much worse could have come along 😉

[@pedrogabrielduarte4544]

Make a vídeo about australopithecus

[@scribblewoman]

Make a video about Australopithecus *please* 😊

[@brucefsanders]

Or even "Please make a video about Australopithecus"

[@discobolos4227]

Pleeeeeease!!! :)

[@brucefsanders]

Actually , I can imagine you standing in front of a mirror practicing your pronunciation.... 😅😅

[@dino-gen]

Minus the mirror so I’m not thrown off by the strained faces I probably make 😂

[@mack_solo]

Long legs are first and foremost build for efficiency of locomotion, not speed. While it is true that for a longer gait the body will traverse faster, the main benefit is the energy consumption (take one step on legs, versus take one step on legs with stilts on). Unfortunately the majority of artwork is utterly fantastic - and that's not a good thing. There is even a golloping sebecosuchian somewhere on the web. Crocodylian spine has nearly zero vertically upward mobility. With legs that far apart barinasuchus would be lucky to break into fast trot if that - still scary, but not a grizzly chase speed by any means. The teeth strongly support mainly scavenging lifestyle - if you don't have teeth to catch pray but to cut steaks instead, it means those steaks were already served. All you had to do is to move from one restaurant to another - hence the longer legs. PS My man, learn to pronounce names if you aim to educate!

[@AncientWildTV]

do you think its ecological role impacted the behavior and survival strategies of other predators in its environment?

[@alexandermorrison1010]

1. Long limbs generally are for speed. But for Barinasuchus it serves both for quick movement and would aid with conservation of energy. As having a fully erected posture to the limbs does for any animal that has that condition. 2. Not sure if you mean Crocodylomorphs or just modern Crocodilians as a reference to whole rigid spinal condition you stated. Many Crocodylomorphs like Barinasuchus and its family Sebecidae are not true crocodiles, they are a distant cousin on the other side of the croc family tree during the Mesozoic and later Cenozoic. Am I saying that Barina hade a very flexible spine? I personally think they weren't as rigid as modern crocs but did possess a relatively small degree of flexibility. Of course we won't know for sure until Barinas spine is found. Given that many Crocodylomorphs that are closer in relation to the Sebecids and Barina show plenty of land adapted traits to running and even bounding/galloping. The leg/pelvis fossils of Sebecosuchia show muscle attachments and scaring that promote the idea of effective movement on land and the ability of producing significant bursts of speed. Even then plenty of modern true crocodile species can gallop/bound, Cuban Crocodile, Mugger Crocodile, Fresh water Crocodile from Australia, American Crocodile, and the Dwarf Crocodiles. You maybe mistaken Alligators/Caiman which cannot gallop or bound as the base for your claim. 3. Ziphodont teeth or "steak knife teeth" are used by active reptilian predators such as Varanids or monitor lizards. These teeth where also used by practically all Theropod Dinosaurs. And again to nail it home the vast majority of terrestrially adapted predatory Crocodylomorphs and even Neosuchians that adapted to a land based lifestyle also possessed this style of teeth. The sole purpose of such a tooth is to part and cut into flesh, this leaves gashes or wounds similar to a cut which bleeds profusely. Crocodilians today can't afford such teeth due to their cutting nature, this would make them loose more prey then they gain. So blade like Ziphodont teeth are the signature design of an active terrestrial reptilian predator. 4. Barinasuchus would of course be a scavenger from time to time. However it would be too large to support itself as a primary scavenger. The distance between potential meals would be too vast for it to live that life full time. Barinasuchus, Sebecosuchians, and most land crocs that had the tools for a predatory lifestyle can and did live as such. There's my long winded response. Have a good one.

[@mack_solo]

@@alexandermorrison1010 "Long limbs generally are for speed" - not only is it a false statement, it is phrased in the exact opposition to what evolution has shown so far. I don't know what metric you're using to come up with that conclusion, but had it been true "in general", the determinator of speed would simply be the length of limbs; thus giraffes, elephants, moose and camels would have been the fastest terrestrial quadrupeds. This is simply not true. While a giraffe is not slow by human standards, there is no evolutionary correlation between its long legs (or entire body structure) and speed, unlike with reach and efficiency. Conservation of energy is not a byproduct result. Efficiency of energy expenditure is the fundamental baseline upon which the evolution builds up and decides what to continue and what to kill off. Definition of a gallop - a fast gait of the horse or other quadruped in which, in the course of each stride, all four feet are off the ground at once, over an extended distance. While small lizzards and youngster crocs are capable of elevating themselves over short distance runs, it's not a gallop. Call it a sprint if you must. Apart from a simple fact that cold blooded reptiles are not adapted to extended intense activities of any kind, let alone galloping over pampas, there isn't a single evidence supporting vertical flexing of the spine, over entire sebecosuchian group, required to perform such a task (especially for a mass of 1.5tons!). The fossil evidence is so scarce, there isn't even complete hind legs record let alone a full skeleton. The conceptual drawings are artistic impression studies of what that would look like had it been the case. And it wasn't. So it is not. I grant you that ziphodonty is not an establishing factor for or against predation as a primary function. I am glad you mentioned Komodo dragon, because even though it is considered an apex predator for its environment today, it happily feeds on carrion when available. In fact the way it feeds itself was exactly what I envisidged barinasuchus to be doing. Komodo dragons often feed on hoofed animals which die from infectious bite inflicted by the dragon. So effectively the varan waits until the animal dies and then proceeds to cut it up and eat it. I am not suggesting barinasuchus was venomous (although there is a paper ...somewhere, proposing that some dinosaurs with similar teeth structure were venomous), nor that it was not capable of effective ambush, but I am supporting the idea that it was mainly eating what already laid there, and south america had pretty large land animals, so eating them would require a lot of flesh cutting effort. "...it would be too large to support itself as a primary scavenger. The distance between potential meals would be too vast for it to live that life full time". By today's standards - Yes. By the late cretaceus onwards standards - No. Between argentosaurus-like on one end to megatherium-like on the other end, there was a lot of massive bodies to be scavenging on - basically giant free meals. It is my opinion, but I do come from Jack Horner's camp that T-Rex was primarly a scavenger for the same reasons (unlike Bob Bakker who says T-Rex was mainly a predator). Good talk.

[@mack_solo]

@@AncientWildTV Yes. But it would be incorrect to assign it special powers in doing so. The niche was not taken by other animals, so it took the available position and continued to serve there until the environment evolved to suit other ways of existence. What i find fascinating, as what this video is about, that from our point of view, it seemed like it had has not noticed the cretaceous had ended. We have sharks and crocodiles and even narrower specialist oddities like tuatara, and coelacanth or lamprays, which unchanged since they came to be, the barinasuchus had a good go.

[@frost7463]

@@mack_solo the teeth don’t suit a scavenger at all. They’re suited for killing large animals. Komodo dragons have a similar tooth structure as do sharks which are both active predators. Theropod dinosaurs also have these teeth which are good for cutting through muscle to cripple prey and damage other soft tissue.