Good video my friend. By the way, could you solve my doubt about which was the largest Prosauropodiform or Sauropodiform on record from the Triassic Period. Either the early, middle or late.
@TheVividen I would love your reaction / take on Max Hawthornes most recent study on Megalodon! It show some good evidence & insight on the lifestyle of this fish! It’s a video here on RU-vid. He’s done research on Llesiosaur / Pliosaur locomotion & the evolution of Plesiosaur necks.
Your analysis is poor. These animals are used to 22% oxygen levels and would have to adapt to 12% oxygen levels a 50% cut (around Everest base camp level oxygen) over night. And as mammals have a pretty inefficient cardiovascular system anyway it’s reasonable to assume that all the very large mammals wouldn’t make it more then maybe a few weeks. Definitely not reproducing. Maybe the smaller ones could? But even smilodon would probably have been useless at 12% oxygen levels, a tired, out of breath cat that has a hard time walking in a straight line basically.
Many wouldn't make it, but there was Barinasuchus, a Cenozoic crocodylomorph which was basically a re-evolved version of Triassic apex predators. It would provide direct competition for the Rauisuchians.
Also I had a feeling the Daedon would take it. Like pigs are super adaptable in most ecosystems and give humans trouble even today. The diverse nature of their size, intelligence and adaptability only compliments them. And other than the Miocene and when we get to the big boy dinosaur domination eras of Jurassic and Cretaceous. I really don’t see another animal being as successful as essentially a super pig loool
Daeodon wasn't terribly intelligent as far as mammals go, but it certainly outsmarts any animal from the Triassic, with the possible exception of small theropod dinosaurs.
@@adriani9432 when looking at most of earths prehistory I honestly think until we get to into the proper and more recent history of the cenzoic they’re pretty damn smart for most life on earth. Crocodilians. Dinosaurs. And even some birds having an orange sized brain is pretty impressive for them and they tend to be the most common species that could pose a threat in this regard. Again taking. The LONG view of it. Not in more specific eras
I wonder what proven habitat conquerors would fare? Pigs, dogs, coyotes, cats and bears would probably take over and then radiate to take up new niches. Hell, throw in a Bullfrog and see what happens 😂
@@DzinkyDzink I think the smaller successful mammal families such as rodents (herbivores) and mustelids (carnivores) would devastate the Triassic ecosystem, providing climate (temps) and atmosphere (O2 content) wouldn't be a significant hindrance. They'd likely quickly evolve and take over niches never previously occupied.
So, mammals seem like they’re doing well. Does make me worried about how much of a menace the Cretaceous will be though, lol. Especially with T. rex around. Good video. 10/10. Can’t wait to see what comes next.
Not just t.rex, we can also mention an angry trike (which would be a nightmare even for an adult rex) But im pretty sure that mammals like the paleoloxodon or the Daedon can enjoy the enviroment
@@adriani9432would they? We now know that pack hunting wasn't incredibly likely though, so the role they'd assume would be a small, solitary carnivore, I'm assuming competing against animals like Raccoons and Possums
That's the catch, modern mammals may prove so effecient that they would wreck existing ecosystems and reform those around themselves. You don't need a 7 tonn T-Rex to hunt Wildebeast when all the Trikes went extinct.
Wonder how some Devonian armored fish and sharks would fare in Mesozoic waters, that could be another cool video. Also any video about carboniferous insects would be rad!
a fun project. I think you underestimate the heat effect in nearly all cases; personally I'd drop nearly all a number, especially as unfamiliar food &/or pathogens could always turn out to be disastrous, but I'm still pleased to watch your takes
@@xanshen9011 Mammals already dominate sharks and pliosaurs/mosasaurs are far smaller than the largest aquatic mammalian carnivores (Livyatan Sperm whale Perucetus) and Basilosaurus is a about the size of the biggest mosasaurids).
The Triassic was a free for all since Dinos didn’t have a stronghold yet. Bigger mammals would definitely fair better The Jurassic and Cretaceous on the other hand…..
I would argue that predatory whales would have an enourmous advantage over reptilian predators based on the endurance. Long chase is the name of the game in the deep waters and mammalian endurance exceeds reptilian by miles(literally). Also the inteligence factor plays a huge role for predators with all modrlern mammals showing an upward trend in its growth.
What would the hunting strategy be for the "smaller" ichthyosaurs on Perucetus? As far as their predatory prowess goes most of the evidence still suggests they targeted animals smaller than themselves and while not exactly well defended the conical teeth and thin snouts would probably have a hard time digging into a giant, round, fatty beast. And in terms of physical strength both sets of giants could do massive damage if they ever struck each other, though you're right the reptiles have an advantage due to their speed. A whack from the tail of a 90 ton sausage though would probably break some thing or multiple things in the reptiles. Also question: is each mammal also competing with each other or are they isolated scenarios? Spawning Livyatan on Perucetus for example drops the numbers even further but may also decrease ichthyosaur population since the sperm whale would be eating them too.
I'm glad you liked it! I'm planning on taking the same ten animals for the subsequent episodes, yes, but I'm also thinking of doing spinoffs (like taking animals like Palaeoloxodon from Asia and putting it into Hell Creek)
I think the interesting thing about these large mammals is some of them were not used to dealing with predators around their size or were bigger than usual.
i hope kelenken, arctotherium, megistotherium, thylacoleo, homotherium, panthera atrox,palaeoloxodon, elasmotherium will be featured in the next episode. or maybe some of them great video as always can’t wait for the next episode of this topic.
When do you think your video about the biggest predator of all time will come out? It gives me the same vibes as Endgame did but in prehistory version. Oh and can you make a video speculating about how Megaraptorans could hunt? It’s one of the most underrated groups of theropods and they are very unique since they hunt with their hands which is something not seen in other groups of theropods expect maybe Spinosaurids.
We're hoping for February/March, but that's very tentative. It takes a while to hear back from researchers since there's so much going on! A megaraptoran video would be fun as well. I've been meaning to make one for a while and just need to find a time to put it in the queue!
I am so glad to have found this channel. Truly a hidden gem. I absolutely loved the vid. Omw to binge everything. Your content is very informative and fun. This video has the potential to be the start of a great series. God bless you man. 🎉
Absolutely great episode on a very immersive topic. You need a wide background in paleozoology and paleobotany to dare attempt something of this scope and do it justice, which you have. That's why I like your channel, you work on topics few others tackle. Can't imagine the amount of research you did for this series and can't wait for the next installment!
Thank you! That's very gratifying to hear. I worked on the research for this episode for a long time, and I'm excited to eventually produce the rest of the series!
Id recon Fasolasuchus could take on Megatherium, its no joke. Powerful bite, strong armour and huge size being 10 metres long, powerful claws too and decent intelligence. I think Fasolasuchus could handle the sloth if it could very likely take prosauropods.
This is presently one of my all time favourite videos. Oh, RU-vid Algorithm, raise up this grand content which subverts traditional Dinosaur V Mammal precepts! Praise be the Vividen!
Video ideas 1. what Triassic animals could survive the Cenozoic era 2. Could the megalodon have survived the Mesozoic era 3. Could the gigantopithecus have survived the Mesozoic era
Smilodons could become larger in order to be too big & aggressive to be prayed upon. If it keeps it’s pack hunting tactics it might seriously become a worldwide apex predator like the Orca, but if it doesn’t, it would probably just become a unique apex predator.
This is fun, will see one of Mesozoic creatures in the Cenozoic? I would like to see how disruptive large predatorial Theropods would have been in the Cenozoic eras.
7:07 funny to see how Fasolasuchus suddenly shrinks in size, when convenient. It measured 8-10m I length exceeding the mega sloth's weight. And let's not forget that sloths have a very low muscle mass, meaning they are less powerful for their weight class; which used to give them an edge, since: less muscle mass -> less food consumption -> higher body mass. I.e. a giant sloth was less powerful than its mass might suggest; instead it had a much more efficient caloric intake; i.e. more bang for the buck. giant claws are of little use when You wield them at a snails pace.
modern mammalian herbivores might struggle in the triassic. Many mesozoic relict plant species are utterly unpalatable to modern mammals, especially ferns and cycads. Modern conifer lineages also hadn't evolved yet.
I know this is concentrating mainly on prehistoric megafauna, but if you move a few thousand years into the modern era, I have a feeling domestic cats would do well in just about any period. They're smart, adaptable and deadly for anything their size, or smaller. Sometimes even larger prey. Considering how devestating they are in pretty much any new environment they are dropped in, it seems like they'd be a real menace.
The only reason cats do so well is because humans pushed out a lot of the threats cats would have to worry about. Example monitor lizards prey on cats all the time now image have a whole landscape fill with them. Most animals that people think that would be super adaptable are really fortunate that humans have just either cause the residential top predator extinction are low density populations.
We'd actually be quite OP, we evolved in the savannah, so we'd be pre-adapted to the high temperatures of the Triassic. Like Daeodon, we're omnivorous and could feast upon plants and fauna alike. Eventually, we'd take over Pangaea, taking down the large dicynodonts and prosauropods, and the large rauisuchians down with them.
Don't forget to include the variation in oxygen levels. Dinosaur hearts may have been similar to an ostrich which has incredible endurance not duplicated in mammals. Also some reptiles with Jabobs organ make it impossible to hide if you have fur.
All animals mentioned lived in the same time so technically the animals surviving into the ice age would have survived if all of this was realistic and not evolutionary.
Damn this is a great video! In the Triassic mammals seem to be doing very well! However, I have a feeling from here on out that is a trend thats going to fall off a very large cliff once we hit the Jurassic...
I’d like a speculative biology video on a world - NOT Earth - where certain Dinosaurs and mammal megafauna species (or families) could theoretically coexist as equals.
Twas my line that if you transport a viable population of house cats back into Jurassic times, in 5 million years you'd have a whole genus ranging from 150g insect eating kitties to pack hunting 500kg "lions" with everything inbetween and absolutely no carnivorous theropods left.
Before the vid begins, I think Wolves could pose a solid threat knowing that their pack hunting strategy would likely be unadapted for by creatures they would seek as prey. Not to mention the intelligence required to work around the defensive adaptations present. As well, I could see big cats doing rather well as we saw a similar ish situation with the American interchange and subsequent disappearance of terror birds.
Actually Terro birds went extinct before big cats found there way to South America which opened a niche for them. When terro birds where alive they where competing with gaint land crocs that where the largest terrestrial land predators since theropods. Thats a myth that land mammalian predators outcompete them. I’m fact the last terro bird found it way to Texas and was doing quite well
i thought there were mammals in the triassic (or earlier) and they got outcompeted by the dinosaurs, that evolved later. it is my understanding that mammals evolved first and the dinosaurs had features, like a higher metabolism and better vision, that relegated mammals to smaller bodied, burrowing and nocturnal niches...the same as today really. there is still a very strong diurnal / nocturnal divide between birds and mammals. and birds still sort of dominate, there being double the number of species
Orcas, leopards, lions, tigers, hyenas, racoons, badgers, armadillos, porcupine, Rhinos, Hippos, Elephants, Ostriches, Cassowary, Komodo dragons, would probably all do well in Triassic & Permian
I can agree with most stuff except the smiloden bit. Expect for the caiman bit and to be fair most caimans are small and typically are piscivores/ eating small invertebrates, definitely not a good ground to use that as a indicator On how well it would do against its competition. It’s kinda like saying since a jaguar can kill a 6 foot caiman that weighs 100lbs it can tackle a 20 foot saltwater crocodiles that’s over a ton
Ive thought about this alot, as well as the inverse of if creatures from the mesozoic could surivive in more modern times about the Quarternery period. I'm curious what someone more knowledgeable than me thinks
I feel you overestimate the herbivores' ability to tackle Triassic plants. Most mammals today are angiosperm dependent and herbivores are a lot more picky than carnivores because plants are very hard to process and can often be inedible or even poisonous if you aren't adapted for them.
Perhaps too hot but modern mammals would compete side to side with triassic archosaurs or even surpass them because they are more suited than dicynodonts and cynodonts.
I think Smilodon's speed is a bit overstated. While obviously not super slow, and I'd still very much hate to be the human in its sights during a chase, it wasn't nearly built for speed to the extent that modern cats are, being much more more bear-like in build (and no, not even bears reach the 35 mph speeds most sources would have you believe). It would still have been better suited for speed than the native predatory pseudosuchians (though, if even Komodo dragons are capable of incredible bursts of speed, these erect-legged, high metabolism pseudosuchians could easily have been too), but still not an extremely noteworthy trait of it (certainly not over long distances). A recent study also found that Smilodon populator's effective gape (distance between the upper and lower canine tips) was...surprisingly low, lower than in Smilodon fatalis. I doubt it actually took adult toxodonts or giant ground sloths in its day (although, I think the long-necked Macrauchenia would have still been vulnerable even as an adult), and I have doubts the girthy giant dicynodonts would leave it much to effectively bite either. Juveniles, of course, are a different story. I think Smilodon would still do reasonably well.
