Dilophosaurus: YDAW Archive (Re-upload + Corrections)

/ ydaw -- The show began its life on another channel several years ago. Now that we have a channel of our own, we're slowly bringing those episodes over to join our newer ones (with added corrections/updates). Fifth is Dilophosaurus!
Check out the Dilophosaurus synapisode we did a while back as an update to the original too: • Revisiting Dilophosaur...
Check out our merch: ydawtheshop.etsy.com
Playlist of all of our older videos here: • Older YDAW Episodes
-
Contents:
00:17 Original Episode
08:58 Corrections Start
09:09 Family Resemblance
09:53 Weights & Measures
10:53 Locality
11:08 Snouty Language
11:29 Dentistry & Digits
13:12 I misremembered that film
13:29 Generic Name
14:20 Specific Name
14:45 Tracks & Traces
-
For more updates and paleo-related fun, follow us:
Twitter: / ydawtheshow
Facebook: / ydawtheshow
Instagram: / yourdinosaursarewrong
Discord: / discord
Ko-fi: ko-fi.com/ydawtheshow
-
Sources & Links:
Welles, S. P.
(1954)
NEW JURASSIC DINOSAUR FROM THE KAYENTA FORMATION OF ARIZONA.
GSA Bulletin, 65(6), 591-598.
doi.org/10.1130/0016-7606(195...[591:NJDFTK]2.0.CO;2
Hamblin, A. H., Bilbey, S. A., & Gillette, D. D.
(1999)
A dinosaur track site in the Navajo-Nugget Sandstone, Red Fleet Reservoir, Uintah County, Utah.
Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication, 99, 51-57.
Milner, A. R. C., Harris, J. D., Lockley, M. G., Kirkland, J. I., & Matthews, N. A.
(2009)
Bird-Like Anatomy, Posture, and Behavior Revealed by an Early Jurassic Theropod Dinosaur Resting Trace.
PLoS ONE, 4(3).
doi.org/10.1371/journal.pone....
(OA)
Marsh A.D., Rowe T.B.
(2020)
A comprehensive anatomical and phylogenetic evaluation of Dilophosaurus wetherilli (Dinosauria, Theropoda) with descriptions of new specimens from the Kayenta Formation of northern Arizona.
Journal of Paleontology 94(78): 1-103
doi.org/10.1017/jpa.2020.14
(OA)
#ydaw #ep05 #dilophosaurus #theropod

[@qwertdudeify]

I love you guys but 8 months for a re-upload of a re-upload is insane

[@YourDinosaursAreWrong]

kzbin.info/www/bejne/bpaodImwpd-em6s

[@DryptosaurusDavid]

@@YourDinosaursAreWrongthe pin of shame

[@jeffreygao3956]

Frankly, I would've liked a correction to the Parasaurolophus episode.

[@YourDinosaursAreWrong]

We're generally going in order of how they originally released. We'll get there eventually.

[@firytwig]

To be fair having the most negative comments be “I want more” is about as good as you can hope for online

[@teacherCF]

Sneaky updated reconstruction of iguanadon shown throughout the end credits!

[@DryptosaurusDavid]

Where's the change?

[@EGeorgev]

"Not actually amish". Haha. I miss these cheeky host cards after your name in the old episodes.

[@amadeus_k2466]

"Tender Guru"

[@robertsantamaria6857]

It is a very helpful description though lol

[@paleoph6168]

0:50

[@nivumdeterraartemisiae275]

12:31 IIRC the Venetoraptor fossil discovered recently includes a claw on 4th digit, which challenged my own preconception that the archosaur common ancestor did not have a 4th claw.

[@DryptosaurusDavid]

Really. That's fascinating

[@YourDinosaursAreWrong]

Oo that's exciting

[@goji5052]

My unprofessional two cents on Venetoraptor - so take this with some salt - is that the fourth claw was a side effect and accidental reversion provoked by enlarging the 4th digit due to phalange count shenanigans. To elaborate, archosaurs have a weird case where the n count of regular phalanges + ungual stops at digit IV (this n phalange count + ungual also doesn't apply to digit I) which is usually shorter and has less bones than digit III. So it MAY (emphasis on may) be that the enlarging of digit IV in lagerpetids incidentally triggered a reversion that gave digit IV its claw back in lagerpetids. Hindlimbs are a different beast, and something I haven't looked into as much - Venetoraptor's 4th claw confused me so that's why I know a bit more about forelimbs in specific. Again, just my uneducated two cents, so don't take this with too much certainty unless someone more educated than me comes along and supports what I've said.

[@goji5052]

Had to fix some fairly bad typos in this, make sure to reread please!

[@extraordinarytv5451]

I never knew archosaurs ever had a specimen that broke the mold and had a fourth claw Edit: on their hands at least

[@ade5136]

Can we talk about how cute the little scoot forward the Dilophosaurus-like animal does in the trackway is?

[@AlisNinsky]

I really love these revisits and corrections. It’s great to see how you’ve grown as a channel.

[@YourDinosaursAreWrong]

Thank you. :)

[@DrBunnyMedicinal]

It's also adorable to see SuperYoungStephen so quickly contrasted with CurrentStephen! It's really fun (and cute!) to see how the host, the artwork/animations and the overall channel have changed over the years. It's kinda a shame we don't have any images or video of YoungLiz as well, but we appreciate all the hard and off-screen work she's done and continues to do today. ❤

[@gaylordzapikowski9053]

Stephen you're using vestigial correctly: "to have diminished from its original purpose and taken on a new role"

[@multidwee]

OED def: BIOLOGY (of an organ or part of the body) degenerate, rudimentary, or atrophied, having become functionless in the course of evolution.

[@thaliazelmer2327]

I loved the charm of the original episodes, also watching you and Liz evolve as presenters without losing that charm!

[@YourDinosaursAreWrong]

Thanks!

[@firytwig]

I love the animation showing how the resting trace was made

[@jamesatchley4586]

The way you used the word "vestigial" in the original video was correct. Vestigial does not imply useless. To illustrate this, look at the human tailbone. It's often touted as a vestigial remnant in humans, but it has many uses. It's just that those uses are different and/or highly reduced from what our ancestors had. That's all that is required to be considered vestigial. A tiny metatarsal with no toe definitely counts, even if it was used to hold ligaments or something.

[@YourDinosaursAreWrong]

Mm yeah you're right, but the rest of what I said in the old video (that it was 'just sort of floating there') was still wrong.

[@Critterpal]

Someone in academia really needs to consider nominating Steven for an honorary doctorate in a paleontology related field.

[@DryptosaurusDavid]

They should.

[@stroopwafelfalafel]

IMO science communication is just as important as the science itself. That’s why you publish a paper when you make a discovery. YDAW’s videos are probably way more widely consumed than the papers they use as sources. And if you consider how well read Steven is because of the research he’s done for these videos? An honorary doctorate is absolutely in order.

[@Halofreakanoid]

It's a good day when I get the notification for a new YDAW episode.

[@chrispevan3763]

I've been in and out of hospital for the last two years and I cannot tell you how many times I've rewatched your videos in that time. Love 'em all keep up the amazing work

[@YourDinosaursAreWrong]

I'm glad they could be helpful to you!

[@DryptosaurusDavid]

I do think the patron polls should have more video ideas for the early Jurassic. Just like the Triassic they are fascinating times that I have the barest amount of knowledge on. Edit: I was kind of hoping the synapisode would be embedded Into the video. But it's great either way.

[@zwussow]

It's so cool seeing the old episodes and seeing how much you guys have developed and improved over time!

[@wolfboy18]

Am I the only one who wants to see an episode talking about Compsognathus? Especially any new information? Love your videos!

[@Amy-il7mq]

Yay new revisited ydaw! I love these, so glad you guys have been able to become an independent channel and do these kind of videos. Such great information presented in an easily digestible way.

[@YourDinosaursAreWrong]

Thanks. :)

[@MylotheZooLovingScientist]

11:18-I had a good laugh over "These are what I called 'sci-comm'..." Can't forget about that mighty fine vocabulary flex at 6:57 with the "meh"! I don't quite know how to describe Steven's earlier style of presenting, but there's an [unintentional, more often than not] humor to it that made the original YDAW videos charming and memorable in their own way. I think in part it comes from his deadpan and matter-of-fact delivery, the long thoughtful (or spacing out) pauses (lol), and the general quirkiness of someone who is being totally themselves but is also just starting out (I assume?) with talking in front of the camera. It's always nice to see Steven not only tear his past self to shreds but also present so much more confidently and spiritedly compared to then.

[@daliborjovanovic510]

After all these famous dinosaurs being given an episode devoted to them, I think you should seriously consider doing one for another familiar Mesozoic reptile, like Quetzalcoatlus (or even revisiting Pteranodon), Elasmosaurus, Mosasaurus/Tylosaurus, Pliosaurus/Liopleurodon or a type of ichthyosaur like Ophthalmosaurus.

[@DryptosaurusDavid]

Quetzalcoatlus is the next proper episode

[@reptileboy500]

I visited the Navajo sandstone tracks May of last year, and it's really astonishing to see them in person. There were tracks in at least three locations we visited, as well as what the owner of the land called the "anti-matrix"(not sure if that's a term actually used?) where a Dilophosaurus fossil was found. He and his wife do tours, but she didn't seem as knowledgeable as him being as she told another tour group: "Here are tracks of Dilophosaurus, also known as Velociraptor or T.rex!"

[@Pentecopterus]

I am a tour guide at the St. George Dinosaur Discovery Site. I love telling people about our amazing fossils. People are always so surprised to learn that the giant statue we have is the same as the JP dinosaur

[@MarioLanzas.]

These revisited videos are so nostalgic🥰

[@thekingofdinos8518]

Was not expecting to see you here.

[@AlexIsModded]

Regarding the premaxillary teeth curving backward, and the unique upward groove in the maxillary jaw, my best guess is that the curved teeth were for biting and holding on to prey. When I look at the overall skull shape of dilophosaurus, it looks more like a "snake" than a lizard. The teeth of pythons and boas curved backward, which prevents prey from pulling away and allows the snake to hold on for a while during constriction. Dilophosaurus obviously didn't constrict its prey, but it probably did hang on to it for a while, while using some other method to tire out its food. I've never supported the scavenger theory for dilophosaurus, since it's body design is far too elaborate and sleek. If anything is super obvious about dinosaur anatomy, no matter the time period they came from, the "chase and catch" dinos all have this aerodynamic and muscular look to them.

[@DEVS_ET_DOMINVS]

Also your beard looks much better with the mustache. Gives you a very studious look.

[@heli0ns]

Dilophosaurus is one of my all time favourite dinosaurs, so it's always great to hear more updates on it!

[@justplainpsychotic]

PLEASE UPLOAD MORE OFTEN ❤❤ Love this channel so much. Not afraid to say that as a 29 year old man.

[@historiansrevolt4333]

Yay! Love these. Also, so close to 100k!!!

[@YourDinosaursAreWrong]

I know, it's so exciting!

[@frip1080]

Cant wait for this as an aspiring paleoartist these vids are really useful they give you a great summary

[@YourDinosaursAreWrong]

If you like our stuff, and would like to help us keep making it, please consider chipping in over at patreon.com/YDAW, or taking a look at our products at www.ydawtheshop.com, or by buying Steven a coffee at ko-fi.com/ydawtheshow . All proceeds go back into making the videos you see here!

[@idle_speculation]

On the topic of that notch in the upper jaw, there was a recent paper on ornithosuchids, pseudosuchians with a similar jaw structure, which concluded that they were specialist hunters of large animals in the vein of gorgonopsids and machairodontine cats. Given the similarities, I wonder if the notched upper jaw was an adaptation for bringing down large prey in the vein of saber-like canines in synapsids.

[@aliendilo3105]

This just makes me happy, not only does my favorite dinosaur get basically three episodes, but they're also some of your best episodes.

[@Reinlegen]

Thank you for these updates and corrections! Dilophosaurus is also my favorite dinosaur

[@flanille]

been watching your dinosaurs are wrong since before you got your own channel as a younger child (~6-8) and now i'm 15 going on 16, and i love it just the same

[@HalfTimeLazer]

Love a revisit of a revisit

[@stuchly1]

Another great episode! I really appreciate that you care enough to go back and update! That's sci comm done right!

[@Morkeoth]

Thx for this archive !

[@miguelisaurusbruh1158]

I love these videos, you should do more of these with other dinosaurs just talking about them even if you don't have any toys

[@lizper]

always love to see your videos come out.

[@jill1334]

i always read it as dilphosaurus, and my brain automatically goes to "dilf-osaurus," every damn time.

[@hsdinoman2267]

whos looking forward to the BOTHM of this dino

[@shauno5888]

I'm lucky enough to live close to Dinosaur State Park in CT. They built a museum over the dilophasaur tracks after their discovery, so they can be seen in their original bedrock. They usually have some pretty good dilophasaur stuff in the gift shop, and try to stock scientifically accurate stuff.

[@jakobgiel2684]

Awesome episode as always! And specifically going to the length to do a second re-upload to get everything right is really cool. At some point in the future I would really love to see an episode about yi qi.

[@diegodankquixote-wry3242]

It might have not be the first archosaur with the body plan, but dilophosaurus sure did lopho its di and apex its predatory.

[@hasta_la_victoria_siempre]

Really excited for the next Ornithopod video

[@Sharauni]

I love these reuploads, the new info and corrected info is always so interesting. And you have come a long way, you looked so nervous in the earlier vid, I love the confidence you have now!

[@YourDinosaursAreWrong]

Thank you so much!

[@fedesxxxxxx]

need more of you

[@rmanMMVII]

Thank you for your efforts!

[@YourDinosaursAreWrong]

My pleasure!

[@arcticdino1650]

Excellent video.

[@fedesxxxxxx]

gotta say, that beard was fire 🔥🔥❤‍🔥

[@jolvergan7878]

No matter, we still love ya! We all make mistakes, and your calm, comforting voice is the David Attenbotough of Paleontology!

[@DarkdustDragon]

13:25 that's one of the frustrating things about the later films. For decades the fan assumption about the Dilophosaurus in Jurassic Park was that it was a juvenile and that eventually we'd get to see a full sized adult one (which would have been epic), but then Dominion doubled down on having multiple specimens and all of them are that size. So no, InGen's Dilophosaurus are just dwarf specimens for some reason.

[@dinomasterultimate]

Like a birthday present when I see new uploads, Im really hoping you get a chance to do the Camarasaurus toy at some point, one of my favorite sauropods.

[@NelsonBrown]

Yay! A new Your Dinosaurs Are Wrong Are Wrong episode!

[@iridiumSerpent]

Dilophosaurus is one of my favourite dinosaurs ❤

[@ARod3]

Damn talk about the glow up with the set up lol

[@YourDinosaursAreWrong]

We eventually figured out what we were doing.

[@silasschneider2766]

The shape of the jaws and teeth that they showed in the original episode make it seem very similar to spinosaurus, and crocodiles. Where the lower teeth fit into that section of short teeth on the upper jaw. Makes me wonder if it ate fish.

[@andreasstavrinou6219]

Hope you'll do a Video on Scutellosaurus the most Abundant prey herbivore of the Kayenta Formation.❤

[@obviousalias132]

You should try reaching out and collabing with Drawfee. One of its hosts is a big dinosaur fan who wants to write/illustrate a book called The Big Book of Dinosaur Lies.

[@YourDinosaursAreWrong]

Really? I didn't know that!

[@obviousalias132]

@@YourDinosaursAreWrong Yeah he mentions it a few times across various episode. They've also done a few dinosaur themed episodes but none with a guest host that I recall.

[@jolvergan7878]

I've showed these videos to friends and family! But when Latin or Taxonical names come up everyone but my nice teases me for being a nerd. Sorry that mine and L's thirst for knowledge is greater than yours! We love dinos, and everything you and company provide!

[@YourDinosaursAreWrong]

Thanks for sharing!! Nerds are cool. ;)

[@Crispy_Bee]

I really like that you re-upload the previous videos, but I would strongly suggest you reduce the "frame" because it makes the video very, very small - especially on mobile devices.

[@YourDinosaursAreWrong]

Unfortunately that's more because we shot the earliest videos in 720p, and that's just the size they are compared to 1080p. This will get better as we update the videos, because we did eventually upgrade to 1080p cameras.

[@REDN0AK]

i think alive stream would do your channel well. you could start with a short Q&A thing, just aswering a couple chat question etc Would love to see somthing like that. plus there is always the possible the benefit of some superchat donations :)

[@marcosfidelis4171]

best channel in yt

[@MarshDoodYT]

Next video can you look on a Megaraptor, specifically Maip Macrothorax

[@SamuRhino2023]

If you haven’t already, you should cover Tyrannosaurus, considering the new size estimates that put it close to or on par with Shantungosaurus! I think it would be pretty interesting and I could probably learn something new about my favorite dinosaur!!!

[@Yatagurusu]

cool video

[@fuzzywarrior3848]

Nedry says something about being lucky he didn't run into one of 'your older siblings'. It is a Juvenile in the first film.

[@YourDinosaursAreWrong]

Really? I thought his line, "Thought you were one of your big brothers, you're not so bad," meant he's glad he encountered the Dilophosaurus, and not one of the larger species. Like, if we were meant to take that literally, why would he say brothers, not sisters? Regardless, the one on-screen set the pop-culture size of Dilophosaurus for decades.

[@BerryDeLajt]

Yeah you can also hear a bigger animal sleeping in the exhibit when the crew are driving through the park. :D

[@whiteegretx]

​@@YourDinosaursAreWrong - if I remember right, the introduction of the park's announcer to the dilophosaurus says it's a juvenile.

[@Ezullof]

In context it's pretty clear that he's glad it's not one of the big theropods (especially the T. Rex).

[@EriktheRed2023]

Good point. Though Nedry says 'brothers' specifically, so he's wrong on that. I wouldn't rule out that he's referring to a different species. Edit: Ninja'ed.

[@tomatosoup44]

Yayy Dilophosaurus

[@daliborjovanovic510]

Well, the phylogenetic status of Dilophosaurus is technically still vague beyond just being a basal neotheropod. It's not like T. rex, Velociraptor, or Giganotosaurus, who are all consistently identified as members of a well-defined and species-rich monophyletic family, allowing us to look at closely related animals for additional info and inferences. Other crested Early Jurassic theropods that have sometimes been classed as dilophosaurids such as Cryolophosaurus and Sinosaurus are likewise controversial when it comes to their phylogeny, so it's not really wrong to say that the phylogeny of Dilophosaurus is still poorly understood. And speaking of Sinosaurus, for a while, Dilophosaurus was thought to have also lived in China, after Dilophosaurus sinensis was named in 1993, but it has since been sunk into Sinosaurus, either as a second species or a synonym of Sinosaurus triassicus.

[@hattix6713]

Was it worth mentioning that we no longer believe Tetanurae and Coelurosauria are sister taxa, that we now place Coelurosauria within Tetanurae?

[@lh3540]

I have that same toy in a potted plant

[@_Enigmatic_]

Wahoo!!

[@paranormalfolks]

This is my favorite dinosaur

[@Shaden0040]

There's a place along the Connecticut River in New England I forget if it's in Massachusetts or Connecticut directly But it's along the border area I believe that has dinosaur trackways and there's a therapod trackway or several therapod trackways in the stone there in the mudstone that have been fossilized. it is believed it is the law thesaurus footprints based on the size and spread and running gate of the walking gate of the creature They can estimate how far apart the the steps are and based on that they can figure out the angular momentum from the hips and where the hips height would be so on and so forth and that's in further shape of the rest of the body from that now whether they are deal officers prince I don't know but it seems to be that it's a similar size creature from the right time. and that the law forsaurus was found in the area there have been bones found of them in New England especially in the Connecticut Massachusetts area around the Connecticut River. so they are assumed with the best guesstimation to be dilaphosaurus prince And there are other smaller prints of small thoroughbods and store pods and I think those are official there we go Creatures. back then it was part of a ocean inlet into New England kind of like Buzzard's Vegas New England now it's a cut into the land mass allowing seawater in is kind of similar to say the Chesapeake Bay Area back then. These prints are creatures walking along the shore or near shore inland of the shoreline and then if you ever get a chance to get over this area of the world check them out. it was swampy and that's what caused their footprints to be preserved.

[@creakingskull7008]

11:51 he's a big dinosaur

[@venomousstriker4715]

You missed the opportunity to say “re-reupload” in the title

[@josh-themighty9967]

I know that it's your dinosaurs are wrong but I was curious if you'd ever consider making videos on marine reptiles like Mosasaurus, Liopleurodon or Pterosaurs such as Pteranodon, Quetzalcoatlus etc Even some prehistoric mammals perhaps like Smilodon or the woolly mammoth? 🤔🤞

[@YourDinosaursAreWrong]

The next video we have to update like this one is actually Pteranodon. :)

[@josh-themighty9967]

@@YourDinosaursAreWrong Oh that's fantastic!! I can't wait to watch it :) I do hope you might take my idea into consideration in the future for other prehistoric animals getting videos about them like the Smilodon I mentioned or woolly mammoth Perhaps Diplodocus could have a video about it too!

[@martijn9568]

@@YourDinosaursAreWrongThat’s going to be a lot of work considering the anatomy of Pterosaurs😅

[@YourDinosaursAreWrong]

Worth it. :)

[@macgonzo]

Comment for the algorithm gods

[@YourDinosaursAreWrong]

May they be appeased.

[@The_AmberMine]

13:25 Jurassic Park nerd here! Steven Spielberg and Stan Winston have stated it was a Juvenile! I have a video discussing this over on my channel! Amazing video as always! I have been a very long time fan of the series!

[@areallyshortbrontothere]

New englander!?

[@Dylan-vd6rz]

"not actually Amish" sent me.😂🤣💀

[@gwyn5144]

As someone who's watched these vids for years I want to say this in a nice way. You are the most sleep inducing person to listen to yet also the only one that I can learn things from. Its like being in a stale classroom where the teacher is understandable and is interesting to listen to but is also so boring you fade In and out of sleep. I'm not sure how to say that any better. It's like a perfect balancing act of calm with teacher dry humor. But also boring yet relaxing and interesting. You confuse me.

[@dagoodboy6424]

Id say u could still fit a dilo in a larger-ish car. Just not comfortably. Cuz dilos n tigers r around the same size discounting the tail wich may be able to be manuverd around to fit right?

[@takenname8053]

Dilo-dog!

[@patreekotime4578]

I mean, pendantically speaking, it did not fit inside a Jeep, but had Nedry been driving a Suburban...

[@zenosAnalytic]

my inner-pedant(ie: "my personality") really wants to comment with a proper pronunciation of lithe, but you've Thwarted Me by already having one in the video |:T

[@noahadams7784]

In Jurassic Park they did mention that the Dilophosaurus was a juvenile When Newman first made eye contact with him he said “oh I thought you were one of your big brothers, you’re not so bad!” Also hinting that they had a few adult dilophosaurus’

[@iridiumSerpent]

"big brothers" could be referring to the larger dinosaurs around, like the t-rex and raptors. And there's no mention of it being a juvenile, it only says that it's venomous.

[@mikezizis3725]

Your dinosaur was wrong. 🙂