Could Giant Mammals Survive the Mesozoic? The Triassic Period
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- čas přidán 9. 06. 2024
- Would mammals survive in dinosaur times? Giant mammals like mammoths, ground sloths, and saber-toothed cats are analyzed in the Mesozoic, calculating their chances of survival. Could mammalian megafauna survive in the Triassic Period? This paleontology video uses scientific studies to calculate the likelihood of success for ten Cenozoic mammal species in the Triassic Period. If you've ever wondered if a mammoth could beat dinosaurs, this video answers that paleontology question. Could a mammoth beat a T.rex? Could a Columbian mammoth survive in the Triassic Period? This series explores questions about how prehistoric mammals would do in the Mesozoic era. Mammals vs Dinosaurs covers the Triassic, Jurassic, and Cretaceous Periods.
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Intro: 00:00
Smilodon populator: 02:39
Megatherium americanum: 05:19
Paraceratherium asiaticum: 08:20
Hyaenodon gigas: 10:12
Perucetus colossus: 11:52
Megaloceros giganteus: 13:59
Mammuthus columbi: 15:44
Livyatan melvillei: 17:29
Doedicurus clavicaudatus: 19:38
Daeodon shoshonensis: 21:40
Check out Ian Webster's Ancient Earth Globe here: dinosaurpictures.org/ancient-...
Would giant mammals survive in dinosaur times? Would mammals survive in the Triassic Period? This paleontology video uses scientific studies to calculate the likelihood of success for ten Cenozoic mammal species in the Triassic Period. If you've ever wondered if a mammoth could beat dinosaurs, this video answers that paleontology question. Could a mammoth beat a T.rex? Could a Columbian mammoth survive in the Triassic Period? This series explores questions about how prehistoric mammals would do in the Mesozoic era. Mammals vs Dinosaurs covers the Triassic, Jurassic, and Cretaceous Periods.
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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 CZcams.
He’s done research on Llesiosaur / Pliosaur locomotion & the evolution of Plesiosaur necks.
Do Megasauropod level members get informations on your new macropredator that surpasses Aust colossus?
I feel like modern archosaurs tho are smart enough to get past a VPN
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.
It’s interesting that Smilodon may have hunted caiman, despite that they lived in more open habitat areas
I mean, those areas probably had plenty of bodies of water for caiman to reside in.
@@beastmaster0934 I think they were a common fossil probably in South America
@@66Traveler99 purussaurus do not lived in the Pleistocene
@@66Traveler99 no I am not
caiman stay being big cats bitches
It'd be interesting to have the tables turned: Triassic animals into the Cenozoic era
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.
@@henrykkeszenowicz4664 fair, but you can't tell who'd be better off in the competition tho
Depends on which era of the Cenozoic lol
@@lovitree9853 true, but it's still an interesting idea
*Someone* would be having megalodon omelettes
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
That's honestly accurate
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.
Up
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
Smilodon: Casually walking through the forest
A random Edmontosaurus: *So you have chosen death*
I'd imagine Deinonychus will wreak absolute havoc if it was introduced into modern day North America.
@@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
I think Mammals would do better in the permian/triassic than jurassic/cretaceos since their competion were similarly sized to cenozoic creatures
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.
@@DzinkyDzink Perhaps but big mammals have much slower reproductive rate than dinos
@@TheGBZard then send in the rabbits!
Ah yes of course, can’t forget the dogs, cats, rats, and wild boars
@@DzinkyDzinkbro there is no way you think any predatory mammal of thag era can take even a medium size trike.
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!
Or maybe in modern-day seas.
It would be interesting to see a Dunkleosteuses competing with tiger sharks and white sharks imo.
The Triassic to us: A world when dinosaurs first appeared
The Triassic to Daeodon: An all you can eat buffet
Truth
This is an interesting concept
In palaeo fans communities there are two completly and extreme postures, the ones who think cenozoic mammals are completely crushed and swept away by any Mezosoic "reptilian" creature because the Mezosoic was the age of the "big, angry killing machines" with superior features and on the other hand the ones who think that mammals are able to outcompete, overcame, over...all, the dinosaurs because mammals are "smarter" and "more active", those persons think that a wolf pack is able to take down medium to big sauropods.
In my unprofessional opinion mammals would do best in the triassic. The jurassic and cretaceous will be harder simply due to the size of the dinosaurs.
Yh i agree jura/creta is out of the question, i personally think its not even close but thats up for debate
The prey in triassic was similar size aswell so yh
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
Diseases also go both ways but yeah the vegetation will be a big hindrance for all herbivores
I think the temperature delta is high enough to make large land mammal survival extremely unlikely
I was honestly expecting this to be about specifically modern mammals surviving in the Triassic.
Not much megafauna left we killed it all
Most of them would have been modern if they weren’t so tasty.
@@iangalloway8917cuz he so fat
Yeah, we killed them all sadly.
We didn't kill all of them. We were a factor but the end of the glaciation killed off much of megafauna
I think the mammals will be less adapted to land as the Jurassic and Cretaceous arrive but in the seas they will thrive big time.
They had to deal with giant pliosaurs and mosasaurs along with sharks
@@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).
@@xanshen9011whales and orcas would destroy them
@@amrita_s8094 orcas would do a lot of damage big smart and hunt in packs they would even bully bigger animals
@@kilianteni7884lol megalodon is bigger
Awesome! Can’t wait to see more. Great breakdown vividen the Triassic is always underrated as a geographical playground for the evergoing fight which is ecological dominance.
It's an amazing time period!
fr triassic is underrated as fuck, there should be 2 games, one with cretaceous and jurassic land animals for dino lovers, and one that's a realistic triassic landscape
For real, we all know that Michael Jackson has the Spinosaurus Holotype though.
Honestly, what about orcas? I dare say that you could drop 1000 orcas in any ocean throughout earth’s history which has enough food to sustain them, and orcas would absolutely dominate, or at the very least be a serious contender for top predator. A decent sized pod of orcas would be a match for any large marine predator that has ever lived.
The only animals that get a 10 in basically any era you drop them in are Orcas, Titanosaurs (such as Argentinasaurus), and Humans. Orcas with their team strategies on top of already being formidable hunters, titanosaurs being enormous very powerful land animals which were still in a time where the largest land predators to ever walk the earth existed, and humans, being the most intelligent and adaptable species on the planet. Even if you dropped 1000 Neanderthals instead of 1000 modern humans, they would easily survive and thrive, being an active threat to every other species on the planet.
@@corneliusmcmuffin3256 there COULD have been sea creatures smarter than the Orcas we just dont know them
Orca kill megalodon so yes orca can survive and orca is a big predator too and they hunt in pack with intelegence orca can be a treat to any Big predator in ocean
@@corneliusmcmuffin3256 yeah, orcas dominate, the only time periods where they woud have something to fear would be the neogene (megalodon and livyatan) and late triassic (himalayasaurus, shonisaurus, aust collosus potentially being a macropredator and so much fricking more, like, it's actually insane how Panthalassa was absolutely crowded with giant apex predators)
but yeah, everything else is fine, in the jurassic liopleurodon and other large pliosaurs stand no chance against a full pod of orcas, a mosasaur is barelly bigger than a bull orca and would be easy work, in the paleogene basilosaurus woudn't be that much of a threat, and even the largest buzzsaw sharks of the paleozoic would stand absolutely ZERO chance against a full pod of orcas
@@corneliusmcmuffin3256rats, ants, house cats (highly inteligient, generalist) and cockroaches probably will live too
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.
And how would u know that? Most marine reptiles were warm blooded at least in Jurassic-creatures
Giant ichthyosaurs could have been warm blooded as well? And you cant just assume intelligence of extinct animals
Idea for next vid
Thrive or Eaten Alive: The Early Jurassic (Dinosaurs vs Mammals)
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. 🎉
Underrated Period
True! The Triassic is wild!
@@TheVividen
😧bro... seriously, haha make a video to deny the fallacies and hoaxes of several videos here on CZcams about the differences between the T rex and the elephant palaexodon, because they put wrong numbers about the largest T rex, they put very speculative measurements with little evidence about the elephant, hahah and in the thumbnail they put the T rex as absolutely small... Hhaahhah this F#Ck is misleading.
👍I used Google Translator.
@@christianvaixco196At some point I plan on making a Thrive or Eaten Alive episode where it's examining various probiscidean species and how they would fare in Hell Creek. Palaeoloxodon would be a part of that
One mammal I know would dominate the prehistoric sea is a family of orcas. Those things have a nice balance of intellect, size, and strength--being far smarter than any prehistoric sea creature that we know of.
One attribute could render them unable to establish a niche; superior size.
Well of course it’s easy to exercise that when your one of the largest creatures to live on earth with the only animals that are bigger then u are whales
@Dr.Ian-Plect Orcas, unlike Ichthyosaurs, hunt and move in pods, and despite their considerably smaller size they are way faster and more agile. Orcas have been reported to hunt humpback whales and even blue whales, so preying on animals as big as Shonisaurus wouldn't be completely unlikely. Their superior speed, stamina, numbers and intelligence could overwhelm a single specimen of those Ichthyosaurs. The biggest problem for orcas would be the much warmer waters of the Triassic, since these animals seem to prefer colder environments.
Amazing video! The research you put into these videos is absolutely amazing, you are among some of the best paleontological channels on this app and i say that with 101% certainty 😊. Your amazing bro 😄
Wow, thank you! I'm happy you appreciate it!
@@TheVividen
😧bro... seriously, haha make a video to deny the fallacies and hoaxes of several videos here on CZcams about the differences between the T rex and the elephant palaexodon, because they put wrong numbers about the largest T rex, they put very speculative measurements with little evidence about the elephant, hahah and in the thumbnail they put the T rex as absolutely small... Hhaahhah this F#Ck is misleading.
👍I used Google Translator.
Amazing video! The information was so we'll put together and was so enjoyable. I loved this video and I hope u make more of these in the future.
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…..
It's a shame racoons ate all your T-Rex eggs..
Yeah. That's exactly the animal to fuck up an entire ecosystem.
@@DzinkyDzinkmy dude talks like same sized mammals didn't exist at that time, t rex would do just fine.
This was a great video! Lots of potential for spin-offs too with other animals in different times, cant wait for more!
this is by far one of the best videos you have done so far, its pretty accurate and not biased ( as in saying mammals would be decimated by anything from the Mesozoic)
do you think amphicyon giganteus, Megalania, Gigantopithecus, cave bears and the marsupial lion would do well during the Triassic?
I've always liked videos like these. I hope you will do it with other groups of animals and time periods.
That Drip Goku caught me off-guard, not gonna lie. 😂
great video dude, very excited for the jurassic and cretaceous episodes. will it be the same cenzoic animals for these as well?
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)
Cant wait for the jurassic one, great video!
I like this type of video great job I can see all the hard work that went into this
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!
Thank you so much for making this into a series! What a wonderful episode this was to kick things off :) I thought the Paraceratherium would probably do very well due to it's large size in the Triassic as you mentioned
Surprised you included Megaloceros as I didn't expect it's inclusion but that was a welcome surprise definitely think it'd be a challenge with the heat but it's speed would be very useful.
Glad the Smilodon was doing fairly well along with the Columbian mammoth although their long gestation and growth time for the babies as you mentioned would be a serious problem for the latter.
The Daeodon doing so well was cool and I half wonder how all these introduced mammals would do interacting with one another in the Triassic Smilodon vs Daeodon!?
I can't wait to see the Jurassic and Cretaceous episodes next :D I hope the Arctodus might make an appearance if possible but if not no worries would still love to see how the current roster would fare in later time periods especially the Smilodon, Paraceratherium and Columbian mammoth!
I’d like to see what Paleozoic creatures would do good in the Cenozoic
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.
Icthiosaurus will slice them but by bit doesn't kill them directly
These are isolated scenarios.
awsome video! one of my favorite topics but people usually do modern mammals. Im glad you're branching out!
Wow, this was fascinating.
Do one with extant mammals next, please!
So glad you did this
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.
Love this idea. Can't wait for you to mix and match other eras. Late Cretaceous animals in the Pliocene? or vice versa.
I love this. Would love more videos like this.
I love this video, please do more animals in the Triassic please
I appreciate the effort of this video, there are massive holes in many of the depictions and behaviors of how much of these organisms would thrive.
I can’t stop rewatching this vid for some reason. Love me some Triassic lore and spec evo stuff so this is great.
I was struggling to understand why anyone would say that a mammal like Hyaenodon Gigas was more closely related to "Penguins"(a bird) than it was to another mammal like a Hyaena. I had to go back and put on closed captions to see that you actually said "Pangolins" and not "Penguins" to realize that what I was hearing wasn't completely mad.
Great concept
Brilliant presentation! I'd love to see you put Thylacoleo in the mix in a future episode.
Awesome content
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.
This was fun, thanks.
This is a really Cool Idea!
Intriguing video.
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!
You gotta do more vids like these
I'm planning on doing at least two more episodes for the Jurassic and Cretaceous periods!
This was super entertaining, if you haven't already, I'd love to see the reverse of this.
Great video!
This is presently one of my all time favourite videos. Oh, CZcams Algorithm, raise up this grand content which subverts traditional Dinosaur V Mammal precepts! Praise be the Vividen!
I'm looking forward to eventually continuing the series!
Part 2 coming soon!
YOU FIND A FORMULA THERE!
DO
MORE
OF
THIS!!!
I feel like that Deodon would also survive in the Cretaceous Period maybe like it would probably kind of disguise itself like it’s my name its own business, and it would snatch a young triceratops.
Please make a Jurassic and Cretaceous video
make more of these for other periods
That's the plan!
92 minutes until the Premiere!
Nice video
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...
do this again please
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.
It was cool of you to rbing himalayasaurus into the discussion and compare it to Livyatan !!! The 3rd most dangerous macroraptorial predator in history against the 2nd !
Could you do this but with tyrannosaurus in the triassic, jurassic, and cenezoic.
An extra point of consideration for Livyatan- they had sonar which is one of the most broken abilities that only mammals seem to get.
I want to see earlier human ancestors like Australopithecus Afarensis vs the Late Cretaceous.
How did you do the weird life on earth thing
Do jurrasic next
"OHHH SHE SIZZLIN!" got me lol that's funny
Video Idea: Could Early Cenozoic Mammals Survive the Mesozoic? The Jurassic Period
Oh, this is really good facts are usually hear Livyatin whale pronounced like Liviathan
The Goku meme had me crying 7:29
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.
Ya'know, this could be used to make a pretty cool spec-evo series. Though maybe add at least one or a few more cenozoic animals to the list, like Barinasuchus should DEFINITELY be one of them, maybe some other south american carnivores like sparassodonts and terror birds, perhaps even purusaurus. Could also be interesting to add marsupial predators like Thylacoleo, or perhaps New Zealand's famous giant eagle?
Edit: if you're adding terror birds, then I HIGHLY recommend adding Kelenken to the list. Also, the giant shark megalodon.
Edit #2: I have one more suggestion to make, add Basilosaurus to the list.
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.
Smilodon vs Triassic crocs: Bite they're long necks.
10:13 PENGUINS !??!
I think he said pangolins.
Meglaceros's habitat stretched a long way. It didn't live in a lot of different habitats.
One thing you forgot to consider is the atmosphere composition. While it wouldn't kill them outright like people tend to think it ours would giant Dinosaurs, it would at least be a hinderance during most of the triassic. The early and mid triassic oxygen low and generally high CO2 levels could give the large mammals a headache, literally and figuratively. They would be out of breath more quickly, lessening their primary advantages.
Sorta like the game Ark Survival Evolved. But more realistic. Unlike the Godzilla sized Giga’s.
I think that Panthera Atrox would be one of the most successful predators in any land based ecosystem. They're strong enough to hunt animals over 1 ton (potentially able to take 2 ton animals like large sloths and B. Latifrons), and would outrun any dinosaur, as well as being significantly more agile. Anything between 100 and 4,000 lbs would be on the menu, and nothing outside of current mammals could catch them to harass them. And mammalian herbivores like horses, deer, bison, and even camels would be too fast for any therapod to catch, majorly upsetting the ecosystem. Pleistocene mammals are generally OP in Mesozoic era.
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.
I suspect many of the large mammals would gravitate towards water which they could use as a heat sink to prevent overheating
@TheVividen Do Megasauropod level members get informations on your new macropredator that surpasses Aust colossus?
They'll get to see the video 24 hours early when it comes out next year!
@@TheVividen And what if a Megasauropod members wants it this year as species profile video?
@@TheVividen Does the new macropredator surpass the higher estimates of aust 256t ?
@@kilianteni7884I suppose that'll be happening anyway haha. It's not ready yet, however--we're going for a release in March or later hopefully
@@kilianteni7884I wouldn't say that this particular specen is as big as the Aust Colossus, but it was designed for killing massive prey!
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
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.
Jurassic and Cretaceous videos also planned?
The Jurassic episode is in the works!
You should add that smilidon more then likely hunted in packs
10:15 Bruh it sounded like you said *Penguins* instead of Pangolins.
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
Oh god not the zombie sauropod at the beginning 😢
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
You showed and mentioned lobsters for perucetus when lobsters didn't exist until the cretaceous
viability of mammals during the mesozoic is great, but why start with such an obscure set of mammals and such an obscure time period?
Imagine this as a TV show lol
I would have added Titanis, or Argentavis. That could be interesting.