Tiny Titans: The Early Evolution of Sauropods
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- เผยแพร่เมื่อ 27 เม.ย. 2024
- Please enjoy this video examining the early evolution of the Sauropods from small, carnivorous ancestors.
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Given that the early Triassic was populated with such a diverse range of animals, its a wonder that dinosaurs eventually became dominant. Had things worked out just a little differently, we might not be marvelling at birds, but instead be debating the land-croc problem!
I think the end-Triassic mass extinction really helped them by wiping out their competitors, mainly from crocodylomorphs and other archosauromorphs.
@@khango6138 More than likely.
Toba again! 🤓
I often wonder what the modern world would look like minus certain mass extinctions. What kind of diversity would we see?
@@jessicapauline83 Are you referring to the Pliestocene Ice Age mega faunas? Life would be less boring. And Africa wildlife tourism would have competition.
I love sauropods, but essentially their early forms, yunnanosaurus IS my favorite dinosaur. I would also love to see coverage of the smaller sauropods from Patagonia(Gondwanatitan, saltasaurus, and Co)
Sauropods are my favorite group of dinosaurs, and so it’s great to see their early history covered!
Yeah, I noticed that you don’t talk about dinosaurs that much you mostly talk about prehistoric mammals, which I do appreciate and by the way, what’s that music you’re playing on the background it’s very mysterious, which I really like
I love these animals so much, I find their body shape to be quite beautiful.
I'm sure it's difficult to make a video, but I'd watch a new episode nightly! Your narration is good.
It is really fascinanting how they evolved
Prosauropods are the most underrated group of dinosaurs
Been looking forward to this one. I knew almost nothing about this group.
Great video as always.
Personally I think you should do more videos covering non-avian dinosaurs because while yes they do get a lot of coverage, that coverage is always isolated. Like yes they are talked about but only singly pertaining to the specific animal whilst also ignoring their phylogeny favor of a more “gamey” “smash bros” like character profile.
Not that there isn’t a place for that but it often takes away from the real complex evolutionary history these animals had just so they can talk about how cool this specific animal is.
I understand your desire to not cover dinosaurs since so many other channels do. That being said, I haven't seen many people cover Avialans (Proto-birds) and the earliest forms of Dinosauria from the Triassic, such as coelophysoids, Sauropodomorphs or Herrerasaurs. In fact, the basal members of even later dinosaur groups are not covered much, despite showcasing fascinating anatomical, behavioral or dietary traits essential for later evolution. Besides all this, I would love for you to cover early forms of life, Paleozoic or even Pre-cambrian! Those ages (besides the Permian a bit) don't get nearly as much attention!
I second the proto/stem birds. Dr.P has done a few episodes on early birds before Kpg, but I haven't seen much on paraves or maniaptora in general
Eorsptor being a sauropodomorph will never not blow my mind.
This group has become my new favorite dinosaurs
4:05 this diagram has the abelisaur`s eye in the antorbital fenestra
Keep up the good work Dr Polaris 👍👍
I love this channel
Nice video, the sauropodomorphs really don't get enough attention
Don’t be shy about Dino content! I cast Another vote for a herrerasaur deep dive from you
It still astonishes me that we know so much about these ancient creatures. Obviously our knowledge is a tiny sliver of what likely existed! But even knowing how much we DON'T know is mind-boggling. I am curious as to how one would know if a baby dinosaur "changed stance," though? Is it a change in the bone structure, or some kind of microfracture pattern detectable in adult bones? (I barely know enough to even ask this, I'm just curious what the reasoning might be)
Your focus on the more obscure is certainly valuable. I am sure I am not alone however when I say I would not mind if you would give some of the old celebrity species the Dr. Polaris treatment!
Dinosaur are talked about a lot however when it comes to their evolution or phylogeny, that tends to get overlooked in the community.
No it doesn't.
@@JohnyG29 I think so, the only other channels that dose evolutionary history or phylogeny is Anthony Pain and animals origins. The latter does more modern animals and Anthony Pain dose cover non-avian dinosaurs but there video are 4 years old, EDGE has Tyrant Files but that’s also 4 years old at this point the only exception is paleo nerd that has one video of Dromaeosaurs that’s a year old but most of their videos on the topic is also 3-4 years old. ben g thomas has some videos on dinosaurs “phylogeny” but most are old the more recent one was (The Mystery of the Megaraptors) but it’s more of a overall history of the group, there’s only 2 cover non-avian dinosaurs. Most videos about dinosaurs are covering new discoveries or species profiles, rather than phylogeny where it’s sometimes briefly mentioned. Both marine reptiles & Pterosaurs get even more over looked in this section as well as Paleozoic with their being less and even more older videos. I feel like this topic is often overlooked in Mesozoic & Paleozoic communities. Unless there’s a channel I haven’t seen then I that case please share
The prosauropods I knew as a kid got blown up 🤷🏽♂️
Im surprised the small ones look so birdlike, or at least what early birds looked like since they both took the generalist Avemetatarsalian bodyplan. If we do end up disreguarding the whole point of Jurassic park and make non avian looking dinosaurs then we can at least make some early sauropods too.
The depiction at 5:11 is adorable. It's probably an awful pet, but I want one.
I guess sauropodomorph is what you call these animals now, because they were called "prosauropods" for most of my life. Speaking of outdated ideas, it's funny you mentioned therizinosaurs since I had books back in the day that said therizinosaurs were "prosauropod" relatives. Early therizinosaurs and sauropodomorphs do look somewhat similar, but even when I was 12 that didn't sound right to me.
9:54 I've been seeing that image before but had no idea what the source was!
It’s interesting that eorapter is more close to relay the sauropods then
The Carnian and Norrean. I'm learning new epochs in the Triassic. Just like the Cenozoic with Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pliestocene, and Holocene.
I think I may have forgotten Neogene.
Cool
That is the first time I hear Eoraptor was in fact a very basal sauropodomorph. Fascinating!
very good
I wonder what the evolution for all Pterosaurs and Therapods was like? The past is much more interesting than the future.
Sauropods are well known for the later-titanic forms, but I find the earlier history more interesting. Wouldn't these be considered prosauropods, or is that even further down the timeline? Great video, looking towards having more!
I've seen the diagram at 4:03 so many times, and I'm just now noticing that the abelisaur has its eyes in the post-orbital fenestra. So cursed
edit: also pterosaurs, theropods and sauropods all evolved air sacs independently? What an odd convergence
Was that an artist's impression of a dinosaur next to some kind of statue in your presentation 🙂
When will you make cryptid videos again?
Out my way, we have inchofossils of the sauropodomorm Otozoum, I was hoping you’d mention it
Hey Dr.Polaris, right after the evolution and the history of the Madtsoiids, why don't you think about making a suggestion and creating a TH-cam Videos that's all about the evolution of and the history of the Prehistoric Marine Reptiles called the Plesiosauria, (Plesiosaurs, Pliosaurs, And Polycotylus) in the next couple of weeks to think about that one coming up next?!⭐️⭐️⭐️⭐️⭐️👍👍👍👍👍
It should be noted that early sauropodimorphs were called prosauropods.
Marvelous how during their evolutive history Sauropods passed from almost theropod /bird like forms to the quadrupedal titans that all we know
It's kinda like how whales started off as wolf-like
@@edgargaebolg9307True 👍👍
If Eoraptor *isn't* a theropod, can it's name be changed from "raptor" to avoid confusion or is it stuck? 🤔
Stuck
4:10 this is a clear example of how parsimony & synapomorphy is entirely "pick-&-choose" amongst scientists. Convergences when something doesn't suite our theories, yet conclusive proof of relationship when it does; hypocrites.