The Mystery Of The Mashed-Up Dinosaurs
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- Опубликовано: 13 фев 2023
- How the therizinosaurs lived and evolved ended up being just as weird as their mixed-up anatomy.
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References: docs.google.com/document/d/1V... 
Развлечения
The possibility of more lineages of dinosaurs is fascinating, but at the same time obvious given only 1% of all life has fossilized.
Imagine the billions of species of insects we will never know lived in past Times, heck we barely know all about the ones living today
More like only 0.00001%
@@chheinrich8486 species are not as interesting, but orders that could've existed and we know nothing about, that is cool.
Keep in mind the vast, vast majority of those species are microscopic organisms, insects, and plants.
Jakapil is a great example of this. It brought a whole new family of ornithiscians to light, and it being a thyreophoran isn't even garuanteed. Teeth similar to it have been found in other formations (the kem kem beds for example), and alongside the fact jakapil has a lot of basal thyreophoran traits it could be an indicator that a whole ghost lineage has been hiding under our noses, just waiting to be found!
Therizinosaurs are a perfect example of how nature can be weirder than science fiction.
@@EnyoStudio to say what?
@@aidanbutler8406 this
Of course, science fiction has to be on some level believable. Nature is subject no such restriction.
@@kacbcd that’s true
@volklied Absolutely 👍🏻
I'm kind of reminded of pandas, bears that became primarily herbivorous in order to fill a niche with little competition.
Which... We've actually recently figured out too, come to think of it. Well as figured as anything is... But as this show memorably taught me "pandas are like vegan gym bros" that eat the most protein packed parts of the plant throughout the year. I wonder both if that was the case for therizinosaurs, and if ppl in the future will find a panda bear fossil and be like "what is this?!"
@@kyrab7914 How would you know that pandas were herbivorous? As far I know... the teeth won't tell you the truth. 😅
Speaking of which, a video discussing the evolutionary origins of the sauropods and how they descend from more theropod looking dinos would be interesting.
Have older episodes not covered this?
@@icollectstories5702
Early sauropods are discussed a little in their video "A Short Tale About Diplodocus' Long Neck", but that was more about how sauropods themselves got huge. I'm referring to the early evolution of Sauropodomorphs (the clade which sauropods derived from), specifically basal examples like Panphagia, Eoraptor and Saturnalia tupiniquim.
Therizinosaurus is one of the most fascinating dinosaurs I’ve ever seen tbh
I agree, when I first saw it I thought it was fake or something, then I read more about it and the discoveries, the cooler it became.
@volklied true
@@Tiberon098 Jurassic world got it accurate ngl.
For me, it’s the birds. It still fascinates me till this day that only the birds survived the asteroid impact in Mexico. 99% of the dinosaur family went extinct, only the birds on the Dinosaur family survived. Eating seeds really saved the birds from experiencing extinction
@@abrqzx yeah
I just love how therizinosaurs and deinocheirus both trended towards herbivory and obscenely large claws/hands. Plus they were contemporaries!
Another fantastic video.
:o I just looked up Deinocheirus bc of this comment, I didn't know that the mystery had been solved! That's it at 5:11. Interesting.
I was so bummed when I found out the Terrible Hand was an herbivore lol.
Omnivore, ate fish and insects and small vertebrates too.
@@Thulgore We'll be truly civilized when meat-eating rather than plant-eating is frowned upon.
I was fascinated to find that therizosaurs were related to the bizarre segnosaurs!
It's so interesting that evolution has converged twice on giant, slow, big-clawed herbivores more than once (therizinosaurs and giant ground sloths). I wonder if they'll find a third example of it?
Well we kind of do know of other counterparts from evolutionary history a third example of this niche is chalicotheres (the AfroEurasian counterparts of the giant ground sloths as well as some of the prosauropods of the Triassic
With how many people are switching to vegan diets these days, I'd say the third example invented the internet lol
Some of the largest bipedal "prosauropods" like Jingshanosaurus could fall into this category.
@@Dragrath1 Those are great examples, thanks! I guess there really is a recurring niche then.
@@Dragrath1 My first thought was that the claws reminded me of chalicotheres, then I thought of ground sloths five seconds before our host named them. There's a niche for animals who grab branches and chow down on the leaves.
An Eons episode about my favorite Dinosaur, LETS GO!!
“How confusing should this Dino be?”
“Yes”
I love how we're learning that dinos are a lot weirder than we first thought
I remember having dinosaur books depicting therizinosaurs as partially quadrupedal and questioned if they were some sort of link between prosauropods and theropods. I love therizinosaurs and all their weirdness. The first depiction I can ever remember of them in media was Nothronychus in When Dinosaurs Roamed America, where it was described as looking like "a half plucked turkey that walked like a pot bellied bear".
My sisters first paper in school was a story set in the near future and was about how the penguins had forgotten to pay the electric bill which resulted in the dinosaurs thawing roaming the earth. The end was a scene in which the Danish prime minister (of the mid 90s) was 90 years old and sitting in a wheelchair in a nursing home being helped by a nurse with bright green hair. He died from choking on his toothbrush when a T-rex showed up. The end
Therizinosaurs is like the weird cousin that exists but the family ignores 😂
I remember in the dinosaur book I bought in the early 90's, _Dinosaurs: A Global View_ by the husband and wife team of (the late) Stephen and Sylvia Czerkas, _Axlasaurus_ had not yet been discovered, and they classified _Therizinosaurus_ and its relatives as segnosaurs, after _Segnosaurus_ as possible aberrant prosauropod descendants.
Thank you, Eons. Seriously, anything PBS has unfailingly amazed since inception.
I really have a nice sympathy for Therizinosauridae, they seem like type of geese with the hands of the "Edward Scissorhands" or the claws of "Wolverine" in the "X-Man"
Most every kid has a space and/or a dinosaur phase, right? I think mine's lasting a bit longer than usual 😋
Same! Mine been going on for about 30 years, and i suspect another 40-50 years of it will come.
Dinosaurs are cool. That means they're for everyone.
Yeah, I'm not growing out of those phases anytime soon either. I can't imagine how dull life would be if I lost the curiosity and wonder of childhood.
I've recently been getting back into mine after getting stuck in my airplane phase for about 10 years😅
I bet those claws helped avoid predation on some occasions too. Much the way giant anteaters defend themselves, at least it's a possibility.
And yet, not a single image of dinos T-posing in the video art. Clearly an oversight.
While the turtle-themed species named may be off based on its initial speculation, at least the genus name still suits this unique dinosaur. It's hard to go wrong with calling something with massive claws a 'scythe lizard.' Although, could you imagine these guys cosplaying as the Ninja Turtles? And I do mean any incarnation.
I just thought they were Dino giant sloths/ anteaters cause how weird they look. NIce to hear more what they actually are
That brings up the question: how many major lineages are unknown due to the a total lack of fossils?
Ummmm... and how would you know?
Depends, what level of "major lineage you're talking here"? Does major lineage means another group of vertebrates parallel to reptiles, amphibians, mammals, etc, or simply a missing major lineage of dinosaurs?
As usual, I am a satisfied and now more educated viewer and I am truly enjoying this channel. Thank you to everyone who continues to allow this channel to form and develop.
A PBS video is always worthwhile. Thanks for your intelligent comment. A lot of silliness in some of the other comments.
You guys have to be the best timed videos ever I really needed the distraction today of all days !!!!!! Thanks eons !!!!
I like how he uses t rex arms unconsiously when he talks.
The ecological niche of therizinosaurs, chalicotheres, and ground sloths was once described to me as "the kind of herbivore that bench-presses anvils in its sleep".
Dino-hippo.
If I were transported back to the mesozoic, its not velociraptor I'd be scared of... it's therizinosaurus. Herbivores don't need to hunt, so therizinosaurus has plenty of energy to waste turning you into a kebab for looking at it funny.
When I was a kid in the early 90s, I was always struck by those big mystery claws.. and the weirdness of what were called "segnosaurs" at the time. Or the mystery giant "toe" claws of Megaraptor .. which ended up being hand claws.
Or the other set of mystery claws that ended up being even weirder, Dinocheirus.
It was sooo satisfying seeing the mysteries of those fossils solved. It turns out that Therizinasaurus, megaraptor, and dinocheirus were even weirder than kid me could have imagined.
I'd love to see an episode on the Megaraptor. It's just as interesting as this or dinocheirus
Therinzosaur feels like a Triassic family just happened to make it to the Cretaceous lol. So weird and interesting!
one of the many Mesozoic creatures introduced to me by Dinosaur Train. I have many great memories of that show and the sheer number of dinosaurs and other prehistoric life they featured. the episodes that featured the Dimetrodon and Mammoth had a lot of potential for spinoffs about Paleozoic and Cenozoic creatures.
I just looked that up and saw a video of it.... dinosaurs.... on a train? WHY? BUT WHY?! 😂😂
Fascinating video! This is definitely a weird looking dinosaur.. it’s amazing how much variety there is in dinosaurs
“How will we ever learn and know what the therizinosaurs looked and behaved like?”
Nigel Marvin: This gives me an idea for a time travel expedition!
They actually did my recommendation from the marsupial lion video!
Thank you PBS Eons!
Nice to see that Blake's finally starting to make peace with the puns.
Yes. Give me dinosaur knowledge, you glorious nerds.
Unhinged Blake is what we love to see!
Blake is especially adorable in this episode.
Awesome episode, thanks alot for this! Therizinosaurus has been one of my favorite dinosaurs since seeing it the fist time in the 2002 Chased by Dinosaurs episode "The Giant Claw". Speaking of that, it would be amazing to see PBS Eons and Nigel Marven do some kind of collab :)
I first heard of Therizinosaurus from Dinosaur King. I thought it was super weird as a kid, but I loved it.
Weird body posture. For some insane reason, it reminds me of the chalicotherium, the unrelated but just as bizarre extinct mammal.
Apropos nothing but that was a beautiful opening scene!..........wonderful shot indeed & really drew me in....
Always a good day when eons uploads
I love that our favorite Tickle Chicken got their own video!
The best word in this episode is: Herbivory. 5:35 It's what it sounds like when you try to order a latte but you sneeze instead.
this just makes me wish y'all do a video on herrerasaurus! another weird dino that paleontologist can't decide where it fits
This was actually really cool, thanks for making this guys
Thus was super interesting. I love this page!
I'm in love with this chanel so much, I always liked paleontology but i would like to go deep into this subject. Any suggestions how can i start? Like book recomendation
I really appreciate the little acknowledgement at the end
Nice going guys!
Therizinosaurs give the platypus comfort when it comes to WTF appearances.
Therizinosaurus is my fav dinosaur. Its just so random, and I love that.
The fossil fuel comment definitely gave me a legitimate chuckle at the end lol
Therizinosaurs are one of my favorite groups of dinosaur’s, wonderful video guys!
Aren't they also called "tickle chicken"?
Big thanks for the final paragraph. It's still very contentious to this day.
A video about my favorite dinosaur! Excellent!
Excellent episode!
The dinosaur version of the platypus? Wonder if any species had the intelligence to look at these guys like, *_whiskey tango foxtrot?!_*
Problem: Not enough meat. Too much competition.
Solution: Become Giraffe.
For a second I thought this was going to be about Chilesaurus, but Therizinosaurus are cool too.
Super Nice, love Therizinosaurus!
Hello I wonder is there a classification for animals species that seemed to mutate and adapt this much because it seems some species maintain relatively the same body type for millennia and other body types like crabs happen again and again while others seem to mutate more than is readily accountable by environmental pressure alone ?
Also I really enjoyed this episode thank you.
I think the principle is that specialized animals tend to stay specialized and more opportunistic animals like omnivores, scavengers and weeds and vermin tend to evolve really fast.
They already did an episode on that. It's the carcinisation episode.
wonderful episode!
a cool part of these videos is the end where they recognize the rightful owners of the land where the discoveries were made. it would be interesting if they talked a bit more about it in the video.
I concur with all of this. I think if there was information given about the rightful owners of the land and their insights, stories, and wisdom they could share would be more then welcomed by myself and many others. A wonderful video despite this missing link. :)
I agree, but it does seem to be limited to the American and Australian continents. Or did they also do it for other continents with displaced peoples too?
There were several shows on PBS TV recently where the Native Americans went along with the archaeologists and discussed the discoveries. It was either on "Nature" or "Nova."
Therizinosaurus used look like nightmare feul back in the day
Nicely done
Wow, i'm early, nice!
Always happy with more dino stuff
I love this one!
Finally! a dinosaur video on eons.....
So wait, now we’re identifying dinosaurs by how thicc the hips are? "Those are PLANT-EATING hips!"
Going from omni- to herbi makes it sort of the Giant Panda of the dino world. Hopefully with a wider range of plants to eat, a higher libido, and the ability to survive childhood without dying of constipation for lack of a stomach massage.
These dinosaurs could make an awesome addition to any horror movie.
Ah, who can ever forget the epic cameo of a therizinosaurus in the last Jurassic Park movie roaming the rain forests of... Italy? 🤣🤣🤣
EONS VIDEO YAYYYYY
When is the next podcast coming out?? I’ve been loving them, but was disappointed when i finished them!
An amazing story.
Great episode what a weird dino
By far my my favorite Host 🤙🤌🤌
I really would like to know the evolution of manatees and seacows.
That was fun!!!! I didn't even know such dinosaurs even existed.
Nothing like seeing Therizinosaurus as the thumbnail!
Ok, so...I have a potentially dumb question...you know those silhouettes shown at 2:19 ? How do they figure out what the dino (or ANY fossil for that matter) would have looked like when the remains are very fragmentary (ex: Erlikosaurus on the far-right of that image, which doesn't have any of its front claws present...Or Nanshiungosaurus on the bottom-left, which doesn't have ANY of its legs) ?
It depends if a previously described related species has a more-or-less complete skeleton, then you can make a reasonable reconstruction of the soft body parts using those elements present in the earlier known species to fill in the gaps for the newer species. It even happens than different related species have different skeletal parts preserved, and then one can make a mosaic that combines all these parts. This is on the assumption that related species don't differ too much in their overall body plan, and is subject to future discoveries that could change their reconstructions.
comparing it to known bits of other dinosaurs. a bit of skull especially can tell you a lot
Therizinos are so weird that Greg Paul refused to say they were theropods,he thought they were late surviving prosauropods
Very nice graphics.
Thank you!
Nothing is more beautifull then coming home,taje a shower, lift your tired body in ur bed and discover pbs uploaded.... amazing
Big fan of the smooth jazz in the background of this video on our large knife turkey friends
What u find most fascinations about Therizinosaurs is how similar they look to Prosauropds.
Omg welcome back
therizinosaurus and deinocheirus are hands (wakawaka) down the coolest dinosaurs out there. or at least they're my favorites!
You're such a fun host I love you
Hips only lie if they don't stand up. That's why you're more likely to be honest if you have funny bones.
"I don't get paid by the hour." is probably the funniest thing I've seen on Eons. Can relate as a salaried employee. Good gig, but getting the giggles and extending the work day is never fun.
Please tell me I'm not the only one who first heard of this dinosaur like 20 years ago from the Walking with Dinosaurs special with Nigel Marven? Please?
Ummmm... Yes. You are!!
saw art of one in a Dinotopia book and had to look it up :)
Ahhh, therizinosaurus.. One of the most baffling dinosaur species
I would love to hear about studies that put keratin sheaths over claw and horn bones. Because the bones are only half the story of total size. But we only know the size of the bones.
Falcarius was discovered in Utah that's so awesome Utah has some good dinosaur fossils!
love those "Tickle Chickens" [especially in the game ARK that features them.]
I need to find the reference but I had a book that placed them in Dromeosaurs in the 1980s. Like giant, really giant nasty dromeosaurids.
Was the author David Lambert? A couple of his books from the 1980s group the therizinosaurs & deinocheirids alongside the raptors.
@@Ozraptor4 Sounds about right, thank you.
Imagine a world where the platypus have no living relatives, how would paleontologists classify it based solely on its skeleton?
They look like someone tried drawing an ostrich from memory.