The proto-mammalian animals were very interesting. The Triassic Period had some of the most amazing fauna. It would be good to know if they laid eggs or were oviparous.
@@chimerasuchus What do you think of using proto-mammalian animals, or equally overlooked animals from the Cenozoic, in fiction. Vividen: Paleontology Evolved collaborated with The Overseer to discuss _Cenozoic Dragons_ (Crocodile relatives that hunted mammals during said period). Check it out!
Another great video my man. Watched it many times over. Just as soon as I thought I knew more about obscure clades than the average paleo-fan; you prove me wrong. It was drilled into me that cynodonts were shrew like synapsids that led to mammals, never knew they grew to such sizes. Can't wait for the next one.
Knew* mate, but yes I can see how it would be surprising. But then again Dimetrodon was fairly big and certainly not shrew like, yet was a proto mammal or mammal like reptile
Me neither. Mainstream paleo media makes it seem like all synapsids except small shrew like mammal relatives died at the end of the Permian. Same with parareptiles, though that's not true either
Another great video! I would just like to note that use of the term "absolute age" has been discouraged by the North American Commission on Stratigraphic Nomenclature since 1983 since it implies there is no uncertainty in the age, the term "numerical age" now being recommended. Also, looking forward to your landmark 100th video on the next upload!
I'd guess that larger ears have at least some bony correlates/attachment points for the muscles that move them, but I don't know that any evidence for the earliest external ears would show on the skull.
@@chimerasuchus I believe you meant genus ;P . I would agree, there would more likely be a family of related genus spanning that 32 or so million years.
I know Coelophysis is kinda well known and covered in depth already by many other creators, but will you be doing a video about them? Or coelophysoids in general?
Chimerasuchus it is always a fresh of lime on a great life to see your new posts! Thank you for all your content, one of the unsung legends of UA-cam! That said do you think these mammals or proto-mammals along with multituberculatas were all egg layers? I know with Theria we have placentalia but the Monotrema must be the more basal ones. I am always fascinated when mammals separated into Theria but what about all the other extinct groups which we know nothing about? Do they lay eggs like other amniondes or not?
@@chimerasuchus I think you should make a video about that or whenever you create more videos about non Therians 'Hey these things lay eggs just like monotremes but are mammals!' I know my nephews are blown away by those types of mammals simply because they in fact lay eggs
@chimerasuchus That's awesome I can't wait to watch it! Egg laying mammals and proto-mammals are so wild. Have you ever thought about discussing how hooves evolved from claws?
Those rhynchosaur reconstructions are downright cute. I love that dinosaur reconstructions have come so far since I was a kid... but it feels like aside from the addition of fur to cynodonts, many Triassic species are still stuck in mid 20th century reconstructions and many dont feel like real living animals yet to me. Are there many (or any) skin impressions or other soft tissue preservations from the Triassic that would assist that?
I mean, a lot of Triassic pseudosuchians did look like outdated dinosaur reconstrucions. For example, Poposaurus vaguely looks like a scaly dromaeosaur.
@@theangrysuchomimus5163 It's just odd to me that with the derived dinosaurs we see bright colors and display structures but with many Triassic animals they are still often being reconstructed with drab colors, with old fashioned shrink-wrapped wrinkly skin, and unnatural anatomy. It just feels... I dont know, very dated and maybe a little bit uncreative. I would love to see more of these animals given a really modern treatment. I get that the tendency is to depict them like extant elephants and rhinos, but there are plenty of other large mammals like giraffes and wildebeest that have exotic patterning, animals like camels with other interesting features.
Maybe fur evolved before being warm blooded. Not as dense as warm blooded. But still enough to: • Detect the airflow of wind • Shield skin from UV radiation • Conserve heat from • Keep out windchill and water chill, especially effective in curled up in burrow Especially for a tiny animal, where surface area to volume ratio is extremely high. And a tiny trapped air barrier from fur is proportionately a massive effect. Fur is derived scales. So it is not like it is that radical.
the incredible CHimerasuchus I was wondering if you could please create a video about Archosaurus rossicus in the future? (the story of the father of all birds, crocodiles and non-avian dinosaurs. In a time when the world was dominated by non-mammalian synasids and a great extinction was coming, but a reptile would have had a great destiny and was a fearsome great predator of his time) Please🥺?
My favorite paleo-channel strikes again. Opinion: Luis V. Rey's reconstruction of Cynognathus has to be some of the most unattractive paleoart I've ever seen. It really is that awful. (I've heard he has a great record collection though so that's a plus I guess.)
Ah...The Capybara and the crocodile, though vastly different creatures today, they since splitting have developed a unique relationship marked by mutual tolerance and familiarity. Their paths may have diverged long ago, but a deep understanding and respect for one another has endured, allowing them to coexist peacefully in their shared habitat.
I’ve got some great ideas and some great suggestions for you to make UA-cam Videos Shows about some more Prehistoric Extinct Crocodilian Species, such as Lazarussuchus, Plesiosuchus, and Metriorynchus adding that to the episodes on the next Saturday on the next Chimerasuchus coming up next!!👍👍👍👍👍⭐️⭐️⭐️⭐️⭐️
You should do an episode on dynamosuchus! He was recently added as an ai to path of titans, and i have a mod team which will eventually be adding it as a playable!
Question: can a heterodont jaw structure be activated with jaws that don't have teeth? Namely using protrusions of the jaw bones themselves like a Dunkleosteus
I believe hair may have already evolved as early as late Carboniferous in response to the colder climate of Late Paleozoic Icehouse event But full-blown mammalian style coat of fur may likely only arose on Theriodont lineage at some point during Permian
The video addresses this, but it is unclear when fur evolved. Pits on Cynognathus's snout were once thought to have held whiskers, but the function of these pits turned out to have been misidentified. Based on the current evidence, both furry and furless reconstructions of Cynognathus are valid.
@praetorianrex5571 Technically, every mammal is a cynodont. However, some non-mammalian cyndonts, including Vilevolodon, could glide. That said, they lived after the Triassic Period.
@chimerasuchus now that I've finished the video i kind of don't believe you. There's certain words where I can hear the program interrupting itself, and there are subtle inconsistencies in pronunciation where I can hear it searching for the right way to pronounce something. Can you tell me what program you use? It is genuinely quite good
@@koboldgeorge2140 It is not AI. The audio is edited to remove pauses (and a few lines are spliced from different takes). The narrator also didn't pronounce "Cynongnathus" consistently between the original take and retakes. I decided the difference was just subtle enough to not ask him to do it again.
very similar bodies, same spread geographically and time-wise, only difference in skull-shape... Are we sure it's not the same species and just a case of sexual dimorphism ? Like Cynognathus would hunt while its female/male counter-part did not need such specialize teeth ?
The idea did occur to me, but the differences in their internal bone structure is much more extreme than would be excepted if they were merely different sexual morphs. Also, Diademodon's teeth were actually the more specialized of the two. Whereas Cynognathus took the tools of its ancestors and modified them to be used against larger prey, Diademodon represents when cynognathians began to transition to a more plant based diet.
Cynodonts,, the wider group that mammals belong to, which is in turn part of the even larger clade Synapsida. The largest group that Cynognathus is a part of that doesn't include mammals is called... Cynognathia.
I am of the camp that Theriodonta, a clade including Cynodonta, Therocephalia, and Gorgonopsia, have Mammal-esque fur. Also, I believe some Dinocephalians in the pole regions have sparse fur coverings to cope with the last stage of the Late Paleozoic/Karoo ice age during Middle Permian. There has not been any researches that definitively disproven this assertion. Granted, if some solid research(es) could disprove this, I will revise my beliefs.
Dinosaurs wouldn't have fur. Fur is diagnostic to mammals. You might be talking about primitive feathers, like what we have on modern ratite birds, which does look superficially hairlike at a distance.
Evolution of endothermy in Synapsida predate the appearance of Dinosauria by a geological period. Is it that much of a stretch to hypothesize that Synapsid fur predate the Dinosaurs ?
That doesn't seem to be the case, but the omnivorous Diademodon and the often herbivorous gomphodonts appear to be descended from a carnivore similar to Cynognathus.
the promo thumbnail illustration was incredibly detailed! just one glance made me imagine stepping into that era
Reminds me of those old animal fight match up cards from like 20-25 years ago lol
@@hankskorpio5857 I think there was one of Cynognathus traced from this one.
Cool!
I remember cynognathus was the smallest figure in my old Marx Prehistoric Animals Playset. I loved that little guy.
The proto-mammalian animals were very interesting. The Triassic Period had some of the most amazing fauna. It would be good to know if they laid eggs or were oviparous.
They laid eggs. Egg-laying was the ancestral state of the first mammals, and is retained in modern monotremes.
Monotremes still lay eggs so they 100% did too
@@chimerasuchus
What do you think of using proto-mammalian animals, or equally overlooked animals from the Cenozoic, in fiction. Vividen: Paleontology Evolved collaborated with The Overseer to discuss _Cenozoic Dragons_ (Crocodile relatives that hunted mammals during said period). Check it out!
So glad you posted this! I don’t think I’ve heard enough about Triassic animals ❤
These guys are so cool you can already see the mammal morphology take shape
Another great video my man. Watched it many times over. Just as soon as I thought I knew more about obscure clades than the average paleo-fan; you prove me wrong. It was drilled into me that cynodonts were shrew like synapsids that led to mammals, never knew they grew to such sizes. Can't wait for the next one.
Awesome video! Never knew Cynodonts could be so big and not shrew-like
Knew* mate, but yes I can see how it would be surprising. But then again Dimetrodon was fairly big and certainly not shrew like, yet was a proto mammal or mammal like reptile
I had no idea that a carnivorous Synapsida would have reached such a large size during the Triassic
Me neither. Mainstream paleo media makes it seem like all synapsids except small shrew like mammal relatives died at the end of the Permian. Same with parareptiles, though that's not true either
That art takes me back
Another great video! I would just like to note that use of the term "absolute age" has been discouraged by the North American Commission on Stratigraphic Nomenclature since 1983 since it implies there is no uncertainty in the age, the term "numerical age" now being recommended.
Also, looking forward to your landmark 100th video on the next upload!
Only got around to watching this now. another really interesting video.
Keep thinking: "Diademodon, of the Dimmsdale Diademodome."
Was looking for this comment!
Doug Diademodon, the owner of Dimmsdale Diademodon.
When did mammals or their relatives first evolve external ear bits? Do we know that early cynodonts didn't have any?
I'd guess that larger ears have at least some bony correlates/attachment points for the muscles that move them, but I don't know that any evidence for the earliest external ears would show on the skull.
Lots of fascinating information - thank you so much for providing this!
Yay!! Another one of your longer videos; I’m obsessed with them!
I wanna pet a Cynognathus so bad, I imagine them acting like goofy dogs.
Not if you want to keep your hand!
@@jimroberts3009They are so cute they can HAVE my hand...
Thank you for yet another amazginly interesting and informative video :3
Every time I hear Diademodon I think of the Dimmsdale Dimmadome
The triassic was pretty mad. Cheers for another great video.
"12 million years? I mean I guess it's an achievement." -Barinasuchus.
Good point. Of course in all likelihood the fossils currently assigned to Barinasuchus likely belong to several closely related species.
@@chimerasuchus I believe you meant genus ;P . I would agree, there would more likely be a family of related genus spanning that 32 or so million years.
Another great video 😎
so well researched. thank you!
Doug Diademodon, owner of the Dimsdale Diademodome
So many of them look derpy. Awesome 😄😍
Took me a mere 2 minutes watching to subscribe
2 minutes listening to someone who knows their stuff👍😉
Another well done and informative video. Good job.
I know Coelophysis is kinda well known and covered in depth already by many other creators, but will you be doing a video about them? Or coelophysoids in general?
I thought they did one on Coelphysis... I might be mistaking for another paleo channel, though...
I think he covered them in a triassic video "dinosaurs of the triassic period" - try looking for it.
Perhaps in the future. It was covered to some extent in the Triassic Dinosaurs video, but a dedicated video about it would be a lot more detailed.
@chimerasuchus a whole clade wide video would do just as well too
Chimerasuchus it is always a fresh of lime on a great life to see your new posts! Thank you for all your content, one of the unsung legends of UA-cam!
That said do you think these mammals or proto-mammals along with multituberculatas were all egg layers? I know with Theria we have placentalia but the Monotrema must be the more basal ones.
I am always fascinated when mammals separated into Theria but what about all the other extinct groups which we know nothing about?
Do they lay eggs like other amniondes or not?
@@bensantos3882 They are thought to have been egg layers.
@@chimerasuchus I think you should make a video about that or whenever you create more videos about non Therians 'Hey these things lay eggs just like monotremes but are mammals!'
I know my nephews are blown away by those types of mammals simply because they in fact lay eggs
@@bensantos3882 The topic will come up in a video I am planning to make about the extinct mammal Repenomamus.
@chimerasuchus That's awesome I can't wait to watch it! Egg laying mammals and proto-mammals are so wild. Have you ever thought about discussing how hooves evolved from claws?
Those rhynchosaur reconstructions are downright cute. I love that dinosaur reconstructions have come so far since I was a kid... but it feels like aside from the addition of fur to cynodonts, many Triassic species are still stuck in mid 20th century reconstructions and many dont feel like real living animals yet to me. Are there many (or any) skin impressions or other soft tissue preservations from the Triassic that would assist that?
Not many, at least in regards to terrestrial species.
I mean, a lot of Triassic pseudosuchians did look like outdated dinosaur reconstrucions. For example, Poposaurus vaguely looks like a scaly dromaeosaur.
@@theangrysuchomimus5163 It's just odd to me that with the derived dinosaurs we see bright colors and display structures but with many Triassic animals they are still often being reconstructed with drab colors, with old fashioned shrink-wrapped wrinkly skin, and unnatural anatomy. It just feels... I dont know, very dated and maybe a little bit uncreative. I would love to see more of these animals given a really modern treatment. I get that the tendency is to depict them like extant elephants and rhinos, but there are plenty of other large mammals like giraffes and wildebeest that have exotic patterning, animals like camels with other interesting features.
Thanks for this. Time for a video on Lisowicia, please.
@@ericfern8869 he did one on placerias
Omg, imagine a "full sprint" waddle xD
Maybe fur evolved before being warm blooded.
Not as dense as warm blooded. But still enough to:
• Detect the airflow of wind
• Shield skin from UV radiation
• Conserve heat from
• Keep out windchill and water chill, especially effective in curled up in burrow
Especially for a tiny animal, where surface area to volume ratio is extremely high. And a tiny trapped air barrier from fur is proportionately a massive effect.
Fur is derived scales. So it is not like it is that radical.
I caught this video just in time for my lunch at work, it was 3:00 a.m. for me
“They’re good cynognathus Dan.”
Diademadon, owner of the Dimsdale Demadon. 😅
Yay a chimerasuchus upload!
Okay. This is some great stuff.
i need another tier of notification bell where the phone screams
For some reason I thought cynodonts didn't survive the great dying.
We are cynodonts!
@@posticusmaximus1739 speak for yourself! I prefer to cynado!
Technically they did not survive past the Triassic.. Their Descendants aka 'True Mammals' took over their Mantle. 😊
Mammals are cynodonts, and some non-mammalian cynodonts did survive past the Triassic.
so good, my friend
the incredible CHimerasuchus I was wondering if you could please create a video about Archosaurus rossicus in the future? (the story of the father of all birds, crocodiles and non-avian dinosaurs. In a time when the world was dominated by non-mammalian synasids and a great extinction was coming, but a reptile would have had a great destiny and was a fearsome great predator of his time) Please🥺?
great video!
It's weird to think that many of these dog-like creatures laid eggs!
Wake up babe, new paleontology lore from chimerasuchus just dropped!
Excelent!
Diademodon, of the Dimsdale 'demodons
Glad to hear of this name after so long
This is back in good ol' experimental days
Cynognathus would be a good pet for me.
who made this art i wanna look at their art cuz its nostalgic
All art is credited. You should be able to see the artist's name in one of the corners.
Mammal like reptiles are very underrated
so good
stay safe
love it
Next year I want to be a werecynodont for Halloween! 😝
My favorite paleo-channel strikes again.
Opinion: Luis V. Rey's reconstruction of Cynognathus has to be some of the most unattractive paleoart I've ever seen. It really is that awful. (I've heard he has a great record collection though so that's a plus I guess.)
Ive never heard of this creature!
Cynodonts are so damn CUTE 😍
Diademodon? Owner of the Dimsdale Demadon?
What is the largest diapsid reptile of the Permian?
I think it was one of the pareiasaurs.
ok
instead of carnivorous reptiles?
@@robertomontini5479 For carnivorous reptiles, I think the largest was Archosaurus.
@@chimerasuchus aren't Pareiasaurs anapsids?
Would pet if given a chance.
Can it beat Inastrancovania though ?
Probably not alone.
nice
Ah...The Capybara and the crocodile, though vastly different creatures today, they since splitting have developed a unique relationship marked by mutual tolerance and familiarity. Their paths may have diverged long ago, but a deep understanding and respect for one another has endured, allowing them to coexist peacefully in their shared habitat.
That image made me think of a joke. Samson killed 500 Philistines with the jawbone of an ass. He talked them to death.
DAMN THOSE WERE SOME DOG JAWS!
I’ve got some great ideas and some great suggestions for you to make UA-cam Videos Shows about some more Prehistoric Extinct Crocodilian Species, such as Lazarussuchus, Plesiosuchus, and Metriorynchus adding that to the episodes on the next Saturday on the next Chimerasuchus coming up next!!👍👍👍👍👍⭐️⭐️⭐️⭐️⭐️
You should do an episode on dynamosuchus! He was recently added as an ai to path of titans, and i have a mod team which will eventually be adding it as a playable!
Do you have information about their speed?
@@naamadossantossilva4736 I am afraid not.
The squamates are where the mammals used to be.
Question: can a heterodont jaw structure be activated with jaws that don't have teeth? Namely using protrusions of the jaw bones themselves like a Dunkleosteus
So.... The era where dinosaurs where freaking adorable with weird fat bodies and dog faces. This is fascinating
Cynongnathus was a mammal relative, not a dinosaur. However, the dinosaurs of the time were cute as well.
A 3 foot long GIANT!
More like six feet long.
@chimerasuchus Omigod the earth trembled for sure
You think amphibians had prominent pallet teeth since they could breathe underwater? Breathing while eating wouldn't be an issue for them.
I believe hair may have already evolved as early as late Carboniferous in response to the colder climate of Late Paleozoic Icehouse event
But full-blown mammalian style coat of fur may likely only arose on Theriodont lineage at some point during Permian
Did Cynognathus really not possess visible ears? If so, how do we know that?
Do we have evidence of fur on Cynognathus, or is this license the artists are taking?
The video addresses this, but it is unclear when fur evolved. Pits on Cynognathus's snout were once thought to have held whiskers, but the function of these pits turned out to have been misidentified. Based on the current evidence, both furry and furless reconstructions of Cynognathus are valid.
Cynognathus. Aka, the world's first good boi
Did they hibernate ??
Given the consistent and high growth indicated by their internal bone structure, no. Diademodon might have though.
guy you are just the best guys online i love this channel you are beautiful see you later.
Any cynodonts have any interesting post cranial features?
@praetorianrex5571 Technically, every mammal is a cynodont. However, some non-mammalian cyndonts, including Vilevolodon, could glide. That said, they lived after the Triassic Period.
google the cynodont: "Protuberum"
Is this an AI voice? If so, it is really good.
No.
@chimerasuchus now that I've finished the video i kind of don't believe you. There's certain words where I can hear the program interrupting itself, and there are subtle inconsistencies in pronunciation where I can hear it searching for the right way to pronounce something. Can you tell me what program you use? It is genuinely quite good
@@koboldgeorge2140 It is not AI. The audio is edited to remove pauses (and a few lines are spliced from different takes). The narrator also didn't pronounce "Cynongnathus" consistently between the original take and retakes. I decided the difference was just subtle enough to not ask him to do it again.
very similar bodies, same spread geographically and time-wise, only difference in skull-shape...
Are we sure it's not the same species and just a case of sexual dimorphism ? Like Cynognathus would hunt while its female/male counter-part did not need such specialize teeth ?
The idea did occur to me, but the differences in their internal bone structure is much more extreme than would be excepted if they were merely different sexual morphs.
Also, Diademodon's teeth were actually the more specialized of the two. Whereas Cynognathus took the tools of its ancestors and modified them to be used against larger prey, Diademodon represents when cynognathians began to transition to a more plant based diet.
@@chimerasuchus Alright, thanks for the clarification mate !!
So if they arent mammals what are they?
Cynodonts,, the wider group that mammals belong to, which is in turn part of the even larger clade Synapsida. The largest group that Cynognathus is a part of that doesn't include mammals is called... Cynognathia.
stem-mammals
Apparently Cynodonts are almost always illustrated wrong. Protomammals had external ears and looked superficially like mustelids.
They look shockingly like gorgonopsids. Neat.
Gorgonopsians were closely related to cynodonts (albeit not at closely as the therocephalians were).
@@chimerasuchus Cynognathus does remind me of Gorynychus
I enjoy being a mammal
He got that dog in him
If they hunted in packs no wonder they lasted millions of years.
I am of the camp that Theriodonta, a clade including Cynodonta, Therocephalia, and Gorgonopsia, have Mammal-esque fur.
Also, I believe some Dinocephalians in the pole regions have sparse fur coverings to cope with the last stage of the Late Paleozoic/Karoo ice age during Middle Permian.
There has not been any researches that definitively disproven this assertion. Granted, if some solid research(es) could disprove this, I will revise my beliefs.
I heard that Pangea is just a myth.
Are you using AI voice?
No.
not there were not
They don’t have ears…
14:41 I thought they had already proven some dinosaurs had fur which predates mammals.
Dinosaurs wouldn't have fur. Fur is diagnostic to mammals.
You might be talking about primitive feathers, like what we have on modern ratite birds, which does look superficially hairlike at a distance.
@ yea I looked it up again after posting 🤦🏾♂️ proto hair essentially
Evolution of endothermy in Synapsida predate the appearance of Dinosauria by a geological period.
Is it that much of a stretch to hypothesize that Synapsid fur predate the Dinosaurs ?
@ That might be where I had the idea. I’m old and high and can’t remember. Thanks!
@@Stothehighest It would be effectively fur, before they further evolved into feathers.
Looking indistinguishable from mammal fur.
w
Proof that god exists and loves dogs.
Loves dogs proves he is good.
The narrator keeps switching between 2 different pronunciations of Cynognathus. Very annoying.
Don't watch then
It's pronounced Sino-nathus....not Sinog-nathus.
Whatever
DE BELLES HORREURS. THE INCESTORS. OF HORROR.
Incestors? 🤣
Pick a pronunciation...
Burp
I wonder if they had changed their diet to become omnivores and herbivores as they grew older.
That doesn't seem to be the case, but the omnivorous Diademodon and the often herbivorous gomphodonts appear to be descended from a carnivore similar to Cynognathus.