Dimetrodon - Ancient Animal

[@goatrex9195]

Dimetrodon used to be my favorite "dinosaur" until I found out it wasnt. Dimetrodon is still one of my favorite prehistoric animals

[@timyo6288]

its still my favorite dinosaur.

[@peterpereira3653]

Still a favourite of mine to, even if it is not a dinosaur as such.But predated the dinosaurs.

[@Riceball01]

Same here.

[@numberpirate]

Wrong again, dimetrodons stormed the whitehouse on January 6th at the behest of the head dimetrodon. So they are not prehistoric....

[@newworldman2112]

@@timyo6288 The video just explained its not a Dinosaur

[@semaj_5022]

My favorite "it's not a dinosaur!" animal. Anything that could be described as a stem-mammal is unfailingly fascinating. P.S. This channel is criminally underrated

[@abnnizzy]

@Damian Biggers "it's not a dinosa- wait it is

[@MybeautifulandamazingPrincess]

If they lay eggs they're not mammals, if they drink milk they're mammals

[@semaj_5022]

@@MybeautifulandamazingPrincess Monotremes and pigeons would like to have a word, respectively.

[@notmrflimflam38notrealflam90]

@Truer words have never been spoken, My Princess Dimetrodon has meat incisors that we inherit today in the form of the front teeth and canines,so that means Dimetrodon is a mammal ancestor and they evolved into Gorgonopsid which started to look like a mammal,and when they evolved into small rat like creatures to survive rats branched off then mouses,and then our rat ancestors became more fit for trees and became monkeys,and austrilopithucus evolved and homo H homo erectus, and then the modern human: Homo sapiens

[@MB32904]

@@notmrflimflam38notrealflam90 dimetrodon went extinct without evolving

[@Axgoodofdunemaul]

This is an outstanding production, the best of its type on KZbin. I like your quiet factual presentation, the lack of razzle-dazzle and dumbing down (you're better than PBS and Smithsonian in this), your focus on one topic, the great variety of fossils and artwork, and your exploration of details. You bring out the real wonder and magic that hides in the subject of paleontology. Thank you, and consider me a fan from now on.

[@NORTH02]

Thank you, I am improving every video so stick around and tell your friends!

[@theothertonydutch]

Pretty sure PBS and Smithsonian aim for a younger audience though.

[@theinformedtoast3377]

When you're trying not to procrastinate but North uploads

[@jdpgetatme1547]

Toasttttt damn uuuuu!

[@bazpearce9993]

You had me at Dimetrodon. Always my favourite in the "dinosaur" books as a child. Subbed!

[@laurachapple6795]

I can't pick a single favourite prehistoric animal but Dimetrodon is way up there.

[@shinobi-no-bueno]

For me it's always the cave lion 🤷 idk why they just seem so Noble 🤣

[@walterfechter8080]

My first "encounter" with Dimetrodon was in the 1959 film adaptation of Jules Verne's "A Journey to the Centre of the Earth." The "Dimetrodon's" were lizards with sails attached to them, but they still looked great (and scary). Thanks, North 02, for this informative video on one of my favourite prehistoric creatures. Oh yeah, my favourite tunes by Electric Light Orchestra are "Rockaria!" and "One Summer Dream."

[@PurpleRhymesWithOrange]

The sail could have just been display in general. It simply made the animal look twice as big and thus would deter other animals from attacking or even infringing on territory.

[@SImrobert2001]

True, but its so large (compared to the rest of the body) that it is impossible that it wouldn't have secondary effects. It could be primarily a display, with a secondary effect of some very slight, secondary heating and cooling, and sexual display.

[@notmrflimflam38notrealflam90]

This is not about paleo fanfic (I think you came to the wrong place)

[@notmrflimflam38notrealflam90]

Also the Dimetrodon feet were not good for swimming at all,the reason Dimetrodon and its ancestors evolved was to escape the water,animals wouldn't return to the water until a few million years after the end of the Mesozoic

[@notmrflimflam38notrealflam90]

And Dimetrodon was long gone by then and the cetaceans did it.

[@eybaza6018]

And in an age where most animals had potatoes for a brain-it probably worked

[@robbie_]

I imagine Dimetrodon to be an ambush predator, a bit like the Komodo Dragon.

[@peterpereira3653]

Possibly so, but would depend on how fast it was compared to its prey animals it hunted.If it was significantly faster than these prey animals then it would more likely have been an active chase hunter in its day.

[@fenrirgg]

With that huge sail it would be easy to spot it.

[@limey461]

@@fenrirgg thats why it would try to ambush o_o

[@abnnizzy]

Thats what Paleontology is, "imagine" and "speculate". Its fun, but not real science.

[@femboyfanass4213]

Probably hunted more like a badger

[@batspidey7611]

The mascot of the Paleozoic finally gets a video.

[@bri1085]

not my mascot

[@pingazpingazzz2276]

@@bri1085 well it's 4 us🤷‍♂️

[@brandonmunsen6035]

What a trash dino to identify an era. Lol

[@pingazpingazzz2276]

@@brandonmunsen6035 it's not a dinosaur 😂🤦‍♂️

[@brandonmunsen6035]

@@pingazpingazzz2276 good for it

[@mistingwolf]

Dimetrodon has definitely been my favorite not-a-dinosaur since I was young. It just looks so interesting, and I love the shape of their heads. My first introduction to this creature was in The Land Before Time.

[@TotallyACat]

Damn! I just found your channel and I am incredibly impressed! Your soothing, easy-to-listen-to voice and professional presentation are a combination of qualities I’ve rarely experienced amongst most other prehistoric KZbinrs! Masterfully done! An easy Subscription on my part!

[@EatSleepEmpire]

The fact that spinosaurus shares both the teeth style and sail with dimetrodon, suggests a common pressure for those traits for semi aquatic creatures.

[@noname18305]

Edging

[@carlpeters6675]

Thank you for giving measurements in both metric and imperial units. For those of us in the back woods (USA) it helps to visualise sizes and weights in metric so we can make the transition more easily.

[@manichaean1888]

I just thought about that. Because the US is the only significant country in the world that hasn't embraced the metric system.

[@peterpereira3653]

USA is kind of weird like that.

[@MaryAnnNytowl]

@@peterpereira3653 _~sigh~_ Yes. Yes, we are.

[@keithfaulkner6319]

They tried to push metric on us 40 plus years ago. My mother's main worry was the (probable) likelihood that in the transition the manufacturers would on purpose mis-change the english-to-metric dimensions and rip us off big time.

[@pedrocampos691]

Syhufecgo.

[@palekoc8697]

The best part about learning bout your favourite "dinosaur" is finding out they weren't actually dinosaurs and realizing just how much cooler than dinos those guys from the other eras actually are

[@carlpeters6675]

Excellent! Lots of new information and a more in-depth treatment than other videos. Well done.

[@beastmaster0934]

The prehistoric beast that everyone lumped in with the dinosaurs for some reason.

[@afa78djd]

Right up there with the Pterosaurs. Every plastic toy dinosaur bag had a few of these and a Dimetrodon. Some even went as far as to include a Woolly Mammoth or two.

[@gearwhizz]

When I found out dimetrodon was actually a stem mammal it absolutely blew my mind and now I get unreasonably angry every time I see them in a collection of dinosaurs.

[@ysf-d9i]

dimetrodons are pretty cool for a dinosaur aren't they

[@EzioTheDemonicOne]

Just going to say, I only recently found your content and I'm really enjoying it. Keep up the good work

[@misterjaxon2559]

Thank you for citing my attempt to model the thermal performance of the sail and especially for pronouncing my name correctly. The problem with using the sail to dump excess heat stems from the fact that the model would not overheat unless the environmental temperature was high and the sail could not effectively radiate heat into a hot environment. Using the sail to absorb heat on a cool morning was possible, but the performance was still pretty lackluster. One problem there was that the sail absorbed heat on one side, but radiated heat on two sides, which undermined its performance. There is another way to look at the problem, however, which might bolster the hypothesis of the sail having a thermal advantage. As we all know, when a dog pants, it uses the evaporation of water to cool off. However, he is not cooling off his whole body. Rather, the blood in the muzzle is cooled and it then passes through the corotid rete where it exchanges heat with blood going up to the brain. That blood reaches the brain having very effectively dumped excess heat into the blood coming off the dog's muzzle. It may have been to the dimetrodon's advantage to selectively warm its central nervous system in the morning. If that's the case and the sail needed to harvest just enough heat to warm selected parts of the body, it could have worked quite well. When considering this possibility, one must bear in mind that we do not know anything about the thermal needs of this critter. It would be a mistake to assume that it was warm-blooded, like a tiger, or cold-blooded, like a lizard. It could have been something that sat between those two regimes, going into short-term torpor, for example, when that was to its advantage, and heating up specific parts of its anatomy when it needed to. Endothermy has many advantages, but it is a very expensive thing to continually maintain. Although homeothermy is where most mammals ended up, proto-mammals may have explored different regimes and processes in the course of the early evolution of the mammalian metabolism. I believe it's a possibility worthy of consideration that the dimetrodon and its relatives had a metabolic system that benefited from the ability to tap into its environment to substantially warm up its brain and vertebral column in the morning when it could adopt a posture with the sunlight directed perpendicularly upon the sail. The ability to harvest free energy from the environment in this manner may have been an economic strategy that worked quite well them.

[@mindatrest6838]

I like your soothing voice..... So calm and composed.....

[@neutrine8957]

one of my alltime favorite youtubers made a video about one of my alltime favorite animals :D I am happy! Thank you!

[@sksk-bd7yv]

Thank you! This is exactly what I'm drawing right now in one of my little science books for my niece. A great help from you!

[@VictorianTimeTraveler]

I think your channel is my favorite palaeontology Channel

[@crystalheart9]

Very interesting and your narration was perfect for relaxing and learning. When I was a kid I would by a bag of plastic dinosaurs and they always had a Dimetrodon included. I thought that particular dinosaur was so interesting looking and now I know it isn't a dinosaur at all.

[@latheofheaven1017]

Thanks for the video North 02. Always happy to see stuff about the Permian era. Dinosaurs are great, but so much life happened before the Triassic. A whole 'new' world. I'm also fascinated to see little elements of mammalian traits as they developed.

[@bibia666]

thanks.., for a well made video.., very nice animations. greetings bibia

[@BriEnr]

I’m glad I’m not the only one to look at those skulls and just not see them as real....they look so clunky and heavy. I can’t believe it took me this long to find your channel, I really liked this vid, and you have a calming voice.

[@dragonzilla6482]

Permian seem to be underrated, I would love to see a tv series dedicated to that period. We had Walking with Monsters back in 2005 and that’s all.

[@dinkydude8205]

Thanks for the video, North! great as always!!

[@scottmitchell1974]

The Whiteside Museum of Natural History is an absolute gem of a museum in Seymour, TX. Dimetrodon is their star attraction. Seymour is in the Permian Basin and many Permian creatures populate their fantastic museum.

[@goatrex9195]

I've always admired the uniqueness of dimetrodon :)

[@pedrocampos691]

Walking with monsters.

[@soulhunter0]

I love to learn about synapsids, i think they are so fascinating creatures. They are like a weird mix between mammalians and reptilians. The combinations and examples of convergent evolution on some species that show traits that would be replicated millions of years after their extiction. I would love to learn and see more videos about these wonderful creatures!

[@Dimetropteryx]

Interesting that while most reptiles may have uniform teeth, you'll also find an enormous number exceptions and specializations once you enter Serpentes.

[@keithfaulkner6319]

Um. While front teeth can be longer, i don't think the shape changes. They're all pretty much long and skinny. Ok. While different types of snakes may possibly differ one species to another, all the teeth in each mouth are the same. Except possibly length.

[@eybaza6018]

Dinosauria and Notosuchia too,Notosuchian teeth can be utterly bizzare for reptiles

[@Dimetropteryx]

​@@keithfaulkner6319 There are snakes where this certainly seems to be the case, but then again there are lots of snakes with hinged hollow teeth connected to specialized glands which concentrates repurposed enzymes from elsewhere in the body which the snake injects into prey, or sprays into the eyes of predators. There are also a several different independently evolved solutions to the same problem, so it's not like this is just a rare exception to the rule. Snake fangs aren't just a little bit longer. Hell, even snakes that lack the feature still tend to have dentition that isn't uniform whether it comes to shape, length, width, proportions, angle or positioning in the jaws. Calling them all long and skinny is like calling mammalian teeth just varying degrees of square.

[@firytwig]

There are a LOT of exceptions for dinosaurs too. There are probably more dinosaurs that have multiple kinds of teeth instead of those who had just one (ignoring no teeth)

[@warufuz4ke]

great vid! glad to have stumbled upon this here channel :)

[@picksalot1]

A lot of anatomical structures serve multi-purpose functions. The ears of elephants are used for hearing, displays, and thermoregulation. I wouldn't be surprised if Dimetrodon sail was multi-purpose as well. Enjoying your videos. Thanks

[@EBTOYUNIVERSE]

this video is very informative ... i love dimetrodon thats is why after watching the domininon movie i promised to include it in my lists of creature to be customize a toy of it in lego form for my channel those included are dinosaurs who appeared in the movie ... even if this is not a dino i still love it i wished they were given a lil more screen time in the movie they are so scary ... i love your channel ... thanks for the upload

[@Ratchetcomand]

My favorite animal. The Permian peroid is underrated.

[@prototropo]

You’re our man, North 02!

[@saltdaemon4453]

Lived somewhere like The Everglades... Ahhh, I see, that makes sense.

[@bluewatson4341]

Ever since I first saw one of these on walking with monsters I’ve always dreamt of owning one as a pet. Maybe one of the smaller species though!

[@shaundouglas2057]

How much would you pay for one?

[@peterpereira3653]

LOL!

[@keithfaulkner6319]

@@shaundouglas2057 a lot!

[@greghall7424]

excellent. Dimetrodon and it's relatives are bewilderingly under represented in paleo analysis. The same can be said of other Permian creatures, like Titanophoneus Potens. An overlooked group of heavy hitters. Permian. Destruction.

[@oker59]

I didn't watch PaleoWorld when I was a kid. I watched James Burke's Connections and "The Day the Universe Changed" - first on the Discovery channel; but, then that turned into a how to fix houses, gardening, and go to antique stores channel; so, they made "The Learning Channel." But, then that channel suffered the same fate. Anyways, I recently, about a year or two ago, finally got around to watching Paleoworld. I actually was watching the Missing Link" show about Homo Erectus. But, then I realized this was a PaleoWorld show; and so I started checking out some more episodes. I forget which episode . . . alright, I googled real quick, and found the episode - Tale of a Sail. I kind of consider the Tale of a Sail" episode about Dimetrodon the most significant. - I also re-watched "The Skull Wars", which is a documentary about Raymond Dart and the discovery of Australopithacines. In it, they mention the discoveror of Dimetrodon as one of Raymond Dart's supporters.

[@KM-yf6qz]

You sound just like me

[@lonelystrategos]

The Discovery Channel turning into the fixing houses, gardening and antique store channel mirrors the History Channel turning into the conspiracy theory, cryptids and aliens channel.

[@tristanburgos1]

Amazing video! If only we could time travel to observe these creatures when they were alive..

[@rogerpartner1622]

Oh yes imagine back then a giant single continent with a few probs big islands Mountain ranges higher then the Himalayas! River systems much much longer than our own the day was under 23 hrs long there was no ice caps The TIDES were totally higher many many meters higher in a few hours half of an area the size of Spain would flood then Drag back out to sea It was 50c all over The oxygen atomosphere was higher 24% instead of 20% which ment giant thunder storms crazy lighting swamp forest fires 🔥 burning for months Etc Etc The moon 🌙 would've looked 2 x as large Incredible I'd sell my Soiled soul to visit for a month lol But in the cycle of life who knows the atoms that are me might me part of a jelly fish on another planet far across the universe . We come from the dark and to Dark we go Bless us all 👍😇🙏🙏

[@visi7754]

Nice One plus Fascinating ~ Cheers

[@Alberad08]

Liked that very much - thank you for sharing!

[@alifakmal4465]

Permian creature are verry intrestink its sad because very little documentary show about this permian animal

[@rogerpartner1622]

Very little is actually known Were they warm blooded ?? Egg laying ?? Or frog spawn kinda laying ?? We're thay nocturnal?? Were they Fish eaters or purely Teresterial Etc Etc ??? I'd love to Know more Strange weird proto mammals ?? Or Ancient Amphibious ? Sad but 220 m y a Is a ways back we will probably never know Much . But it's fun to Speculate.?😇👍😂

[@Dman9fp]

@@rogerpartner1622 They were definitely wetland dwellers, at least a large part of the time (they have found Diplocaulus skulls with Dimetrodon bite chunks taken out, and pretty sure they've found feeding evidence on Orthacanth/Xenacanth sharks too). People like to call them the "first true land apex predators", maybe maybe not (think it's clear they wouldn't be suited for long chases, most likely ambush/ sit and wait, and scavenge when they can, it seems) Still definitely impressive and very successful for its time

[@williamjordan5554]

Interesting*

[@tyrannotherium7873]

One of my favorite animals from the Permian

[@ΠαναγιωτηςΑγγελ]

Mine too

[@lesliesylvan]

Great vid. Well done. I used to visit the NYC Natural History Museum and saw the "Brontosaurus." 60 years ago.

[@rogerpartner1622]

The British Museum of nature near Hyde park is great The Bronto / Dipliodocus there still not 100% is 80ft But the Eddifce it's self the building Every brick every tile in the whole building is shaped like a diffrent shell or Leaf It's stunning those victorians really knew how to build a MUSEUM 😅👌😇🙏

[@lesliesylvan]

@@rogerpartner1622 Yes, they did. Detail was important and they knew other artisans they respected would be viewing theirs. . . . .Fewer of that ilk, today /"In this day and age~" Sigh Be well, I miss the steak/potato and Kidney/leek mini pies, along with a Pint of Harp; even the warm beer, at old small town pubs/ whole potato and beans for brunch. and the Indian cuisine. And loved being called "Luv." . . . Thanks for helping me recall those lovely memories . . . Cheers!

[@markheath465]

Great job

[@RenzoStefanoPontexRuiz]

Wow, I didn't know those things about this prehistoric creature, Those are good facts, Thank you so much. You're very clever because You know what you're talking about, My compliments and Keep up the good work.

[@joeshmoe8345]

Amazing video thanks !!!

[@richardcharay7788]

Enjoyed, thanks!

[@Gunni1972]

"Say cheese...never mind", still the scariest smile of its time.

[@entombedmachine1518]

I honest to God did not know Dimetrodon was closer to mammalian than reptilian lol. Your videos are great, and packed full of useful information! Keep it up!

[@N.Sniper]

The smallest Dimetrodon species was only 60cm? Now that would make a cool pet. :)

[@z1az285]

Fantastic video and detailed information. Subbed immediately

[@jgr7487]

this is my favourite ancient animal!

[@scottdavis1549]

12:15, sure it’s a cool paint job. However this depiction looks less uncomfortable and less awkward then some of the others. Would make fantastic tattoo. Great episode.

[@scottdavis1549]

What if it had to run in the most peculiar way of hurling from one side to the other nearly every landing providing the opportunity for disaster? The sail was used as a sail to counteract the and direct the force of the run? Keeping in mind I have no knowledge or education of which I speak. Barreling along push / push like ice skating.

[@dynamosaurusimperious6341]

Basically Dimetrodon was one of the more interesing non-dinosauria creature of the far past,and I almost like this pre-mammal,cause it's so cool and it had a sail. And cause of North,I like the Dimetrodon even more ( and I once had a huge dinetrodon toy,when I was younger,sadly my dad rip it's sail off,so he could pant something on it's back,like a chi pet. )

[@bendover9813]

A chi pet?

[@brandonmunsen6035]

Chi pet? Ur dad sounds dumb

[@dynamosaurusimperious6341]

Well I didn't mind it,it was that he wanted to use it,as a way to protrct his plants from all the insects,that would eat the plant,while also not telling before hand he would need to cut off the sail,so that was dum dum of him to do,but I wasn't too upset. Also I mean Chi Pets,as in tho those animals or things that when pour with water would have moss/grass come out from their back.

[@goatrex9195]

How would dimetrodon fare against a lion or a tiger?

[@hyena_fan]

probebly the dimetrodon would lose a lion and a tiger have more wepons

[@mechwarrior13]

Mammals also have the ability to recover stamina in a short period and I just don't think the dimetrodon have enough energy to beat a lion/tiger unless it gets a lucky bite

[@NORTH02]

I think a modern large bodied Felix is simply to cordinated for such an ancient beast. It would just overpower it with superiors senses and body design

[@DonnieY23]

My brother likes to let his toenails grow outrageously long so I tell him he has dimetrodon toenails when they’re really bad 😂💀

[@KAZVorpal]

Dimetrodons were not ancestors of mammals, though this video said they were. They are a divergent branch from our ancestral therapsids.

[@jaysilverheals4445]

I have a pet theory of mine that the sails could act like water anchors while feeding in or underwater. If an in or underwater animal lunges its head to the side to grab fish the head wont really move far in distance. But with the sail it can lunge and the resistance of the sail acts like an anchor so the head moves much further. a good example if a person or animal is underwater and you view them from above and they try to lunge over, the camera above will show little net movement.

[@ianbeale2527]

Just a thought, could the "sail" not lie back flat - like a Perch's fin, and be raised when in danger or for mating displays ? Probably way off here as I don't know how rigid or fixed those sail bones are. But the fact the narrator says they can grow back makes me wonder. Especially if the sail membrane isn't too thick.

[@theluftwaffle1]

Might be very niche but eh, do any of you remember back when KZbin was getting started there was a channel that posted a series that was just him and his brother making a story with his dinosaur toys, like it was real well made for the time. And all I can remember of it now is when the dimetrodon loses its mind and goes around trying to eat the other Dino’s. “Dimetrodon wants food!”

[@jap9539]

I'm currently sculpting a resin kit statue of Dimetrodon. This video helps a lot. Thank you so much.

[@TheRealRodent]

Crazy to think the time span between Dimetrodon and Dinosaurs... is almost the same as the time span between Humans and Dinosaurs.

[@planescaped]

The skull being so bony seems like an indicator of how it was a primitive/early animal. Evolution probably realized so much bone was a waste, and over time creatures skulls became more svelte. Or it evolved from some bony fish... Or both. But probably neither. >__>

[@maximosaurus042nd]

This is actually one of few of your videos I actually learned something new. Up until now, i actually thought that Dimetrodon had skin only covering had their saiI, because everyone else did. I feel embarrassed for not knowing that earlier but why is it incorrect?

[@maximosaurus042nd]

I meant half.

[@kieranhornett816]

Awesome predator

[@SingleTrack66]

Just discovered your channel. Great work . Subbed

[@TheWirksworthGunroom]

Most interesting!

[@brianatkinson3516]

My favorite ancient creature and im glad to see im not alone in that.

[@peterpereira3653]

You are not alone!

remember when dino weebs would draw them with their subpar art skills and took that whole partial sail theory by basically having the spines lack so much skin that it might as well be a porcupine

[@garychynne1377]

real good show.

[@OsmioIridio-og8cn]

Thanks for sharing

[@waynedombrowski7568]

Subscribed. My new favorite channel. Paleontology brings out the kid in me. I wonder if Dimetrodon could raise and lower its sail. As it was the biggest predator around at the time,its not as likely that it was used for intimidation. Sexual display seems most likely,and if movable perhaps it was used as a peacock's tail. If it was colored similarly,wow,now that'd be something - how purdy!

[@LafIeursdumal]

They had them in the Jurassic park and I had to come here because I knew they weren’t a dinosaur along with another little animal

[@jordynstanley9050]

12:10 Dimetrodon really had it all. They had giant cool sails, apex predator, and could poop outside and not get yelled at by the “police.” Jesus, I see what you did for Dimetrodon, I want that for me.

[@sidilicious11]

Their skeletons are really cool looking.

[@lostpony4885]

Why is shallow water locomotion not on the list of sail theories?

[@romeostonem6798]

loved it ❤️

[@luukzilla1519]

Make A Video On Gorgosaurus Or Daspletosaurus

[@26snoopy82]

Great video I’ve always been interested in that animal and the salamander with boomerang head.

[@relieveddimetrodon9058]

Now this is content

[@mtdewxtreme669]

They evolved right after the carboniferous Ice age, maybe they only needed it to warmup at sunrise, and to stay warm overnight at sunset, it may have been a disadvantage to use it to cool off, the sail could also be used for them to see each other in dense undergrowth

[@fenrirgg]

The sails would be like flags that proclaimed "if you can see my flag you're in my territory", that would be cool.

[@mtdewxtreme669]

@@fenrirgg glad u like that idea, do u think they could've hunted like a polar bear, waiting for ripples in the to snap something up from above, idk I just thought of that and each one would claim a stretch of riverbank

[@femboyfanass4213]

Nice theory

[@scottmitchell1974]

My favorite!! I love its head shape. I always thought of it as a dog-lizard. 🤷‍♂️

[@BKDBrian2]

I never realized how many people think dimetrodon was a dinosaur when in reality it's not.

[@michaelcarley9866]

Sail is perfect for drift hunting slow water ways.

[@michaelcarley9866]

Or boys had blue sails and girls had pink sails..

[@PokéAsh89]

Dimetrodon used to be my favorite reptile until I found it wasn't a reptile 😂

[@melissamayhaps8990]

The stowaway in every set of tiny plastic or little-bitty rubber, dinosaur toys. 🦖🦕

[@alexjunior5774]

The 18:12 picture was made by the Brazilian Paleoartist Felipe Alves Elias. From the KZbin Channel "Paleozoo BR"

[@mechwarrior13]

Awesome content, and I really appreciate all the other paleo nerds here in the comments haha

[@blockmasterscott]

It wasn't until I almost a teenager before I discovered Dimetrodon wasn't a dinosaur. I was like "whaaaaat?"

[@adamhorn6392]

I never put together that our zygomatic arch was the second opening... Thank you!

[@princesseville6889]

Same, I feel so stupid now! How did I never see that?

[@numberpirate]

We are not diapsids though. We have only one opening, unless you mean that the orbit itself is one.

[@rogerpartner1622]

Our 220 million yr old Granny had it down There on her head lol

[@MaryAnnNytowl]

@@numberpirate we are not, no. We are SYNapsids. Synapsids only have the one extra (with the eye orbit being the "second" one they are referring to in their comment) on each side. Ours is what we call our temples. [Edited for clarity]

[@PrehistoricMagazine]

Looking forward to potentially seeing dimetridon in dominion

[@Scrinwaipwr]

There is something so classically primordial feeling about animals from the early Permian, especially Dimetrodon. The first proper land animals (amphibians don't count) that weren't arthropods or something!

[@dwaneanderson8039]

The extra robust skulls on these animals suggests to me that they were pugnacious creatures that fought each other. The skull had to be strong enough to survive getting bitten by other Dimetrodons.

[@quillanthrasher6846]

Great fucking video man thise were one of my first favorite extinct species growing up as a kid. And as you said I have never once heard of that extinction period before the great dying