Dimetrodon is Not A Dinosaur
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- Опубліковано 20 тра 2014
- Submit your own photos of misinformed Dimetrodon toys and games to / isnotadinosaur !
Learn more about the Field Museum's fossil mammal and synapsid collection: bit.ly/1sYstC5
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NEW BLOG! / isnotadinosaur
Subreddit: / thebrainscoop
Facebook: / thebrainscoop
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Major thanks to Kenneth D. Angielczyk, Ph.D. Associate Curator of Paleomammalogy for his generous help in the creation of this episode! You can read his paper "Dimetrodon is Not a Dinosaur" here: bit.ly/1nfXvrH
Additional thanks to Bill Simpson for providing the physical specimens from the Fossil Vertebrate collection!
Producer, Writer, Creator, Host:
Emily Graslie
Producer, Editor, Camera:
Tom McNamara
Theme music:
Michael Aranda
Created By:
Hank Green
Production Assistant:
Katie Kirby
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Filmed on Location and Supported by:
The Field Museum in Chicago, IL
(www.fieldmuseum.org)
Huge thanks to synapsids like Tony Chu, Seth Bergenholtz, Martina Šafusová, and Moyaccercchi for translating this episode!
Technically, you could be an ancestor of your cousin... I just don't want to think about it.
You've been watching too much "Dark" on Netflix ;)
Dimetrodon has been my favorite prehistoric animal since I was a kid. I knew it was older than dinosaurs and was somewhere on the mammal evolutionary track, but thanks to this video I've learned a bit about synapsids. And the realization that we humans can call ourselves related to it.
So that's awesome to learn.
One time I closed the video before she said "it still has brains on it.."
It feels wrong.
I really appreciate the way she doesn't dumb down her videos. I learned so much from this vid, and I studied biology at uni! Super interesting, and really refreshing
Can i just say that the new style (editing and format) is fantastic, keep it up guys!
You didn't just rip open that vintage toy, did you? Oh... Oh God...
I cringed when she did... still cringing and I will not be able to sleep tonight.
Let's forgive her...because her purpose was noble.
you can get that JP dimetrodon for like.... $7 on ebay. It's very common. I have several.
It's not about the money, man.
it hurt my soul
Another amazing video. I thoroughly enjoyed having you stand there and teach me something(s!) new.
My favourites are still the videos where you aren't able to control your enthusiasm while dissecting something... but now I just want more of both.
This was one of my favorite Brain Scoop videos, you should do more like this!
I always enjoy BrainScoop videos. They're informative, funny and oh-so lighthearted.
loved this,, especially that last little bit. you are such a goof, Emily! never change!
ive been waiting so long for this episode, i love it
I think it's possible to be a descendant of your cousin in certain states in the south...
I really enjoy that each new video is something cool, informative, and definitely not what I was expecting.
This is the first video science video of yours I've watched (after having just seen "Where My Ladies At?") and I'm looking forward to watching the rest. I especially appreciate the fact that you've captioned your videos. I'm half deaf, and it's great not having to choose between waking up the neighborhood or struggling through terrible autocaptions.
So, what you're saying is... Mammals suck. :D
Exactly.
*****
emily...! I do not suck........anymore
***** Well, dinosaurs are awesome, after all.
Ha
Hey, to the synapsids' credit, they DID rule the earth millions of years before the dinosaurs did, and after a mass extinction and the dinosaurs' world domination, they bided their time as small fuzzy critters for the next 180 million years until the world was theirs for the taking once again.
I just found this channel. Loving it so far!
***** I love the new style of the show. The lighting really brings out the violet, blue and rose in Emily's skin; stunning! The background music is brilliant as well. Emily has also grown as a speaker; her comfort in speaking is really becoming the main attraction of these videos. Keep up the good work and thanks for teaching us the Dimetrodon dance.
Brilliant stuff, I had no idea about all this. The time-scales are so huge, and allow for such diversity that it's mind-boggling.
Cheers for the awesome channel, Emily!
Great video! I really like the pace and all the useful diagrams really helped me to think about all this a bit more transparently, as far as ancestral lines and characteristics go. I'm definably taking notes.
Nothing says you're in for a good, educational time like a lady laughing with crocodile skulls in the intro
She looks blazed, check out how red her eyes are.
Also the way she was giggling while holding the package was very endearing, you can tell she is stoked about dinosaurs.
I learned more interesting things from UA-cam than from school.
Charles Bertie Not really,teachers teach from a book which they are assigned to teach from.
Kinda the idea. They are meant for mass appeal. Not all knowledge is fun and exciting, and in those cases, no easy way out, you just gotta learn it to know.
Pokémon didn't introduce the misconception that evolution is a linear process; that's been around as long as the concept of evolution has existed.
Desmaad And Pokemon also introduced the weird concept of ancient-reversion evolution by having certain Pokemon like Yanma actually evolve into a prehistoric form through the learning of Ancient Power.
@Desmaad Good point, but Pokemon, being a famous franchise, would introduce such misconceptions at a larger scale to the point where the general public would think (without knowing better) that its version of "evolution" is true. "Evolution" is even a standard of the franchise.
I think mislabeling it is still better than the whole Brontosaurus mistake though.
At least Dimetrodon exists.
Mr. Rize AG
Exactly :p
or the velociraptor misconception
or the whole pterosaurus stuff
Bryan Durand well the brontosaurus never existed. someone had found fossils and thought it was a new species, but it had already been discovered. somehow the false name became more popular than the real name.
velociraptors are less than 2ft tall and no where near as smart as the movies show them to be.
pterosaurs are more commonly and incorrectly called pterodactyls. pterodactyl is only 1 type of pterosaur. none of the pterosaurs are dinosaurs either.
Super interesting. I also LOVED the play with framing!
I loved the explanation of how mammals and reptiles branched away from their common ancestor. Very informative.
my head felt like it exploded. I was told in school that they evolved into alligators and crocodiles. lol. I didn't think that it was correct but internet wasn't a thing back then. I was reading a few articles about this subject and I decided to look up a video and I found this one. you explained everything great and I thank you for sharing this. I learned something new today.
What are some the biggest changes in classifications that have happened with animals from finding out new information? Like when the large objects in the Kuiper were found and Pluto had to be reclassified.
In every toy set, it's either this guy or a pterosaur trying to tag along with all the REAL dinosaurs.
Or a sea creature of some sort.
Emily this was such a great video! I'm loving reading the comments as people ask each other more and talk about Phylogenetics, it's so cool! But I have one small issue. At 2:09 you show a diagram Where Amniota diverges into Reptilia and Mammalia, shouldn't that show a divergence into Reptilia and Synapsids? You show the detailed Synapsid branch at 2:27, I think it might be easier for a viewer to understand the connections visually if there had been consistency between those two diagrams. Does that make sense? Anyway, just a little opinion. Thanks for the great video, I'll keep my eye out for notadinosaur's!
MOAR PALEONTOLOGY! Seriously, ancient life has gotten my academic gears going since I was a kid.
Thanks Emily for all your fun content. You're great!
Yay, Emily you are so awesome! I heart thebrainscoop. Sometimes if there hasn't been a new episode for a while I go back and watch the old ones. I just can't get enough of this brain scooping goodness. P.S. Dimetrodon I promise never to call you a dinosaur again.
Oh god, I had that exact same toy as a kid. How do they still produce it now?
Love this channel but for some reasons new episodes are not showing up in my You Tube subscription feed :(
The dimetrodon skull seen in the comparative graphic at 4:00 reminds me of what the heads of Skeksis (sp?) looked like in the Dark Crystal movie.
And Spinosaurus doesn't help the matter.
Also, if you enjoy this topic, I highly recommend watching AronRa's short series of videos called "Falsifying Phylogeny"; very interesting and educational stuff!
Definitely second this! Also, the '10th Foundational Falsehood of Creationism' is a good one of his for cladograms as well.
Another fantastic episode, thank you so much :) One comment: the glare on your glasses was very distracting.
I've long wondered how paleontologists distinguished between early mammals and other therapsids. Subscribed.
Okay, I just gotta ask: What is the background music? And where can I get it? :D
It just got stuck in my head...
I had that toy once upon a time. Ahh... memories.
I used to be obsessed with learning about prehistoric creatures. It always made me cringe when people misidentified them, including misidentification of Dimetrodon. I'd later broaden my understanding of evolutionary relationships through school and the Internet, including your channel. I'll be sure to spread the knowledge in this video to others.
Perhaps my favorite Brain Scoop episode yet. Thank you!
Mammal's secondary palate and suckling with negative pressure was really interesting!
This kind of videos are great! I don't really know much about paleonthology, and I enjoy very much the way you explain this stuff. If you could do more on this field it would be great! :D
PS: Maybe an episode about the Ambystoma mexicanum regenerative capabilities and cuteness would be something worthy to think about...
1. Your hair looks adorable.
2. I love the visibility (creepering?) of Soon Raccoon.
3. We're more closely related to Dimetrodon than he was to T-Rex? CRAZY. Was the Dimetrodon originally labeled a dinosaur just because of the way it's been represented (like in kids toys) or did the misconception start somewhere else? Like, he looks more like a dinosaur or a reptile than he does like us, so he's gotta be...one of them? I mean, obviously it's been debunked, but where did the misconception come from?
The original definition of dinosaur was basically any extinct large animal, and to an extent this is still its colloquial meaning, and the source of the misconception. Since then, we've developed a more phylogenetic classification system (that is, one where organisms are classified according to common descent), which began in roughly the 1950's but really took off in the 1990's.
That's not to say that the original definition of dinosaur stuck around that late (the idea that all extinct large animals were dinosaurs essentially disappeared from the scientific literature over a century ago), but it's a lot easier to create a trope in society than it is to remove it.
Biologists would have known by the early 20th century that dinosaurs fitted into two groups, saurischia and ictioschia, and that dimetrodon didn't belong to either. I remember the books (at least the better ones) I grew up with in the 1970s had a page or two with a heading like "before dinosaurs" that would have featured dimetrodon and other "mammal like reptiles".
Animal classification was traditionally based on "evolutionary grade" rather than on purely cladistic grounds, aka on "family trees" of species. Therefore, some groupings contained some, but not, the descendants of a given common ancestor. For example, reptiles include lizards, snakes, turtles, and crocodiles, but excludes birds, even though crocodilians are more closely related to birds than to any other reptile.
While the cladistic approach is more scientific, it requires that one know the lineage of a species in order to classify it. Additionally, each time the lineage of a species is updated, its classification is also updated. Although speaking of "mammal-like reptiles" is technically not the best term, it does give the layman an idea about what sort of creature a Gorgonops is.
Great Paleontology video. Do we have any idea when did the Synapsid and Reptile commom ancestor evolved? Or when did the common Dimetrodon and Mammal ancestor lived?
My god is it relieving to hear someone correct this common misunderstanding, I love the brain scoop. You go Emily :)
This episode was really informative, I learned a lot. Thanks Emily!
also, if someone makes you a dimetrodon costume will you do that dance in it for a video?
Loved this episode! You've come so far from episode Emily
Where do we send the pics?
What?! You just crushed my childhood a little bit. First we lose brontosaurus and now this!
It amazes me the stuff I am capable of understanding once you explain it. Way thanks.
Emily!!! I wish I could make phylogenies sound as cool as you make them... or maybe I needed a better subject... poison hemlock just isn't as exciting as a Dimetrodon. :) keep up the excellent work!!
I haven't watched a brain scoop vid in awhile and WOW has the style changed!
I've never seen these! Thanks! Subscribed.
Fantastic episode Emily! A helpful lesson learned.
What you say is similar to what I have learned in my geology classes. So I was wondering why a place like the Smithsonian would categorize them synapsid reptiles and place them in reptilia in their fossils handbook? Or is the book just old as it was published in 2002?
that bat was all like 'here's my business'
Love your channel! ❤️
Thank you for making this video. Now to see if you have one on pterodactyls. My daughter brought home a "Dinosaur" toy that she called a "pterodactyl" when she got home. I was having a lot of trouble explaining to her why she was wrong. You explained it better than I could ever hope to despite the fact that I already had a grasp on these concepts. :P
I'm crying when you open that rare toys :(
I love dinosaurs and paleontology and had no idea synapsids even existed! Thanks Emily!
I LOVED THIS!!! so much information. thank you, Emily.
also, i love how you define your use of words such as "primitive" and how primitive doesnt mean lesser or weak in any way. great episode Emily!
Super interesting and enlightening video as always ^.^
I love this video, gives you a better perspective on evolution, thanks
Excellent video. I had no idea of the complexity of our evolutionary path. Thank you so much. I really enjoy your interviews and tours of the museum, but it's these scripted episodes that I love the most.
Awesome vid! Love this channel.
When were synapsids finally taken out of the "mammal like reptile" classification? Because I remember a book from when I was a kid (I want to say it was published in the mid 80s, but it belonged to my brother and could be from a little before that) that still called dimetrodons a reptile, although it did make it clear they weren't dinosaurs.
Dimetrodon was totally my favorite "dinosaur" as a kid, so this is sort of like the Pluto thing for me, where it IS better taxonomically, but it feels like a demotion and that makes me kinda sad for Dimetrodon.
Think of it as an upgrade! Now you have the freedom to pick a favorite dinosaur, and how many people have a favorite non-mammalian synapsid?! and think about all of the other creatures like Dimetrodon that don't get celebrated enough! can't think of any? well DANG there's your chance to champion obscure but important lifeforms.
Yeah. It does let Stegosaurus retake his favorite dinosaur spot after 25 years of playing second fiddle. (Apparently, back protuberances were how I chose favorites. I didn't realize that until just now.)
I've assumed that Dimetrodon was a dinosaur, because...you know, long tail and it was an ancient creature...up until I turned 10, which was back in 1991. I've read some of my dad's old "The World Encyclopedia" collections (copyright 1969 btw). I've always been fascinated by paleo-life, and I've learned that there wasn't this one prehistoric super-era as most kids of the 80's thought it to be...but 3 different eras (Paleozoic, Mesozoic and Cenozoic). Reading the articles on these books, I've learned that the Dimetrodon was a product of the Permian, the final period of the Paleozoic...transitioning into the Triassic of the Mesozoic. Even then, it wasn't until watching Walking with Monsters that I learned that Dimetrodon wasn't even alive at the end of the Permian; Therapsids evolved after the Dimetrodon and met their end at the close of the Permian.
Prior to watching Walking with Monsters, I balked at the common-place ignorance that places Dimetrodon with Dinosaurs, and this balking has taken a second level as most people were not even aware of Gorgonopsids like Inostrancevia.
You are an outstanding presenter. Field is really fortunate to have you.
Loved the info and its narration.
But... but... now I need a new answer to "What is my favorite dinosaur?" !!
Great video, I'd love to see more about convergent and divergent evolution, life is weird.
Noooooooooo! You took it out of the packaging! It's no longer mint! Whyyyyyyyyyy!?!?!?!?!?!? :P JK Good episode as usual. The old timey slide show bit had me on the floor. :D
To get the jaws to work, that one back-turned leg is the key. Just squeeze it.
Had that toy as a kid, I loved those JP toys.
Evolution FTW! And seriously, you should go check out the isnotadinosaur.tumblr.com because it's great
I'm shocked, shocked to discover inaccuracies among toy manufacturers!
absolutely love the music in this video ^.^
"You know, you have a solid palate inside you mouth that able you to create a negative pressure.
Yep, you suck."
- this line has to be used someday.
it is a pre-start reptile right?
This channel needs more subscribers
This is your best video yet. Keep up the good work.
The elephant skull to the left of her looks so shocked to hear this information.
you might want to consider using polarized filter for the camera lenses, to avoid reflection from glasses. considering many people featured in your channel wears glasses.
Are you also doing the Pterodactyl?
Davesothoth Yes there is, it's a genus of Pterosaur.
Davesothoth Good point, but I think that the one species in that genus is commonly known as Pterodactyl. It's kind of like saying there is no such thing as a Rhinoceros because the family is Rhinocerotidae.
+Randygandalf9 Isn't pterodactylodia a suborder?
Fantastic video! Thanks for being so informative!
Love having Soon Raccoon in the background. :3
So, if birds and mammals have four chambered hearts, and reptiles and amphibians have three chambered hearts, how many chambers do we believe (or is there any evidence) dimetrodon (as an early synapsid) and dinosaurs (as early birds) had?
The comment about Dimetrodon not getting a role in Jurassic Park is especially funny considering that it is supposed to appear in the newest film in the series, alongside fellow stem mammal, Lystrosaurus.
I swear, if they call Lystrosaurus and Dimetrodon "dinosaurs", I will become Thanos and delete the entire Jurassic World series.
Never understood what a synapsid was until now. Vaguely remembered something about the pelvis shape?
The music playing during the video is so lovelly. That's the name?
I still wanna know hahaha
I have found the answer, Julia from the past. The song is called Pretty Ballerina ❤ Now rest.
Dimetrodon *IS* a dinosaur under the 2nd definition of the noun:
*"a person or thing that is outdated or has become obsolete because of failure to adapt to changing circumstances."*
For our purposes, we're using "Dinosaur" in reference to the clade "Dinosauria," of which Dimetrodon is not a member.
Tyrion Lannister
Nope, to become a member of a different clade you have to build a time machine and change the course of evolutionary history.
Oh. My. Goodness. You just ripped open a 20 year old mint Jurassic Park toy.... The card was like PERFECT. I can't unsee this....
Well, I was once watching a cartoon show from the 1970s, it was either on Cartoon Network or Boomerang, where there was a caveman battling a Dimetrodon. As you can imagine, it was more cool than accurate.
Well this changes all my plans for the day...
Now I am imagining a Tyrannosaurus Rex in a cowboy hat getting into a gunfighter standoff with a Dimetrodon and saying "Why you low down terrestrial vertebrate! This Park ain't big enough for the two of us! Git on back to Synapsid Ranch before I fill ya full o' lead!"
I already know that I'll be pulling my hair out by the end of Jurassic World. I can already feel my hair falling out.
new intro? i love it
THANK YOU SO MUCH!!! I HAVE LITERALLY BEEN TRYING TO EXPLAIN THIS SINCE I WAS FOUR AND NOW YOU SOMEONE HAS FINALLY ADDRESSED THIS PROBLEM!!! I EVEN HAVE A DIMETRODON TOY LABELED SPINOSAURUS!!! Also great job on calling out on Pokémon. Also, African elephants preceded woolly mammoths, and were larger than them, so maybe that's another misconception to address.