Early Evolution of Theropods

[@justapickedminfan]

As a herrerasaurus fan, this makes me happy. Herrerasaurus, and triassic dinosaurs in general, need more love.

[@Bbbbbbbbbnb]

As a herrerasaurus I appreciate your support

[@posticusmaximus1739]

Chimerasuchus gives them love on his channel

[@brianhammer5107]

there are many species of herrerasaurids all over the globe

[@thedarkmasterthedarkmaster]

Theropods are a neat group that still live with us

[@Tsotha]

put a hen next to a T-Rex and you notice they have very similar builds

[@RJs_CC]

Ahhh, you have seen my wife ...

[@kingdon7795]

They don't. The birds are related to the dromeosaurs and were there alongside dinosaurs.

[@threebythestreet]

@@kingdon7795 Birds didnt just live along side dinosaurs. They are dinosaurs.

[@kingdon7795]

@@threebythestreet nobody's denying that bruh

[@MrLolguy93]

Anyone else remember the ending of Walking with Monsters when Euparkeria starts changing into Allosaurus?

[@austinhazlett2k17]

Yeah 2005 was a good year for Paleo media

[@Morrison-saber-tooth]

That was perfect ending to ends the show as it feels like prequel to "walking with dinosaurs"

[@posticusmaximus1739]

I do!!

[@sashabertasius1046]

Yeah

[@rl9217]

“These specialists on two legs will provide a cornerstone for one of the greatest dynasties the world will ever see. Their descendants will become the dominant life form on earth for more than 170 million years and be known as the most notorious monsters of them all. Welcome to the age of dinosaurs.”

[@austinhazlett2k17]

This is the earliest i have been to a new video. Great video depicting early dinosaurs 🦖

[@erichtomanek4739]

Thank you for this enlightening video. The law is just! Looking forward to Fonzisaurus and friends.

[@esoteric_mememaster]

Your videos are super informative. LOVE.

[@Tsotha]

Dr. Polaris often digs up a lot of obscure background information on a level I haven't heard on most of the other youtube channels specialising in obscure weird prehistoric animals.

[@esoteric_mememaster]

@@Tsotha yeah its interesting. He should do a video on how he writes videos.

[@Tsotha]

@@esoteric_mememaster I still think PBS Eons is the best beginner channel for the "weird prehistoric animals" youtube, with Ben G. Thomas and Dr. Polaris providing more in depth information

[@Tsotha]

A new Dr. Polaris video is an insta-watch for me, you've quickly become one of my favourite channels for videos about weird and obscure prehistoric animals. This one is interesting because it shows how quickly scientific consensus about dinosaur evolution changes. I remember that the books about dinosaurs I read in the 1990's unambiguously described Herrerasaurus as an early theropod dinosaur.

[@mechwarrior13]

that thumbnail picture is BRUTAL!

[@cyankirkpatrick5194]

Dr. Polaris I got some fantastic news, a few days ago I was reading my newsletter from Live science and it broke the story about a amateur fossil hunter discovered a Columbian Mammoth's tusk in rural Madison county Mississippi near a riverbed and according to the article he contacted and agency there and then they called another agency there as well , and they said those types of fossil's doesn't preserve well and since then several newspapers have picked up the story and even the Smithsonian magazine 🙄 mentioned it as well it was 7 ft long and weighed 600 pounds or more 😮 I'm hoping that I'll find something similar to that

[@foreverpinkf.7603]

That was very interesting. The relatively small, agile dinosaurs have always been my favourites.

[@jonnyqwst]

The range of artwork is astounding

[@ryansmith-sounddesigner7831]

Mind if I ask what background music did you use for your videos. Both from the intro and the rest of the content? Really informative videos and I am looking forward to seeing more from you.

[@dr.polaris6423]

Thanks for the kind words! My intro music is (perhaps somewhat randomly) Arctic Antics from Crash Bandicoot: The Wrath of Cortex. While it’s a pretty flawed game, I played it quite a bit when I was young and most of the music is legitimately really good. The main music is called Hozen Theme from World of Warcraft; I’ve always enjoyed how mysterious and calming it sounds.

[@HassanMohamed-rm1cb]

Hey Dr. Polaris, right after the evolution and the history of the Hadrosaurs, Dryomorphas, why don't you get to think of a suggestion and creating a KZbin Videos all about the about the evolution and the history of the Prehistoric Marine Reptiles called the Palaeophiidae (Palaeophis), the Extinct Marine Serpentes (Snakes) that are the relatives to the Extant File Snakes, such as Archaeophis, Palaeophis, and Pterosphenus, in the next couple of weeks to think about that one coming up next?!⭐️⭐️⭐️⭐️⭐️👍👍👍👍👍

[@WaterShowsProd]

@@dr.polaris6423 I've always loved your theme song and never knew where it came from. I agree about the background music; it reminds me of 1950s/early 1960s science fiction soundtracks.

[@savvygood]

It does sound mysterious!

[@stuartbruff8786]

I too was curious about the intro. I mistakenly thought it was from a 60s/70s eclectic band like the Bonzo Dogs, and harking back to the 1920s/1930s. It sounds rather the kind of thing that Vivian Stanshall would have composed/resurrected.

[@drewstar412]

I always get a kick out the intro music! Luv it Dr Polaris! Let it play longer please. Cheerio!

[@blackreign673]

Dr. Polaris is the best Dr around

[@Tuishimi]

Not a single, ancient archosaur is boring.

[@posticusmaximus1739]

Living archosaurs are fun too

[@laurachapple6795]

Iguanodon never skipped arm day.

[@AncientWildTV]

also the development of primitive feathers. btw amazing video! ancient species are never boring

[@--Paws--]

Coelophysis will always be my favorite

[@UnwantedGhost1-anz25]

And some people think that dogs would beat them in an evolution arm's race.

[@GG-gr2nc]

7:20 Tawa - looks like a black feather jump suit 😂

[@Tsotha]

it looks like a very ornery ostrich, to me

[@jessehutchings]

I continue to feel amazed that before the reign of mammals Earth was actually dominated essentially by dragons

[@Tsotha]

it is a widespread theory that some dragon legends were caused by people finding dinosaur bones and not knowing what to make of them

[@danilodesouza6461]

Can you make a video on the evolution of psittacids?

[@ausgruenden1590]

2:43 I'm really glad for size comparison guy that he's armed against those predators. ^^

[@PooGEr97]

(In an endearing way) Came for the click bait, stayed for the Brit

[@AustinThomasPhD]

"Early Evolution of Theropods" is clickbait? Did he change the title, perhaps?

[@posticusmaximus1739]

Please elaborate

[@bkjeong4302]

All of the larger End-Triassic theropods were restricted to higher latitudes as larger dinosaurs couldn’t handle the droughts of the Pangean interior (unlike large pseudosuchians of the time).

[@Tsotha]

I didn't know that, there has to be a reason it took a while for theropod dinosaurs to replace all the weird Triassic dinosaurs as the world's dominant predators. I am guessing the late Triassic extinction took out most of the crocodile relatives that were better adapted to life on dry land than in rivers, the same way as the Permian extinction got rid of most of the Gorgonopsids? (early mammals who were the Permian's dominant terrestrial predators - looked like a weird cross between dogs and monitor lizards, Dr. Polaris has another video about them) Some of the weird prehistoric crocodiles remained dominant in South America long after the meteor and well into the Miocene, however, namely the Sebechosuchians.

[@bkjeong4302]

@@Tsotha That’s exactly my point, theropods were unable to take over in the Triassic.

[@griffinhunter3206]

The Ropods are my favorite group of dinosaurs

[@Morrison-saber-tooth]

The ropods?!

[@jimroberts3009]

Bloody auto correction!

[@blackreign673]

it sounds like a cool gang in a cartoon about dinosaurs

[@isaacthedestroyerofstuped7676]

​@@jimroberts3009 That's awful in the best way XD

[@Tsotha]

@@blackreign673 or a late 1970's/early 1980's new wave band that sounded like a less radio friendly version of Devo

[@RafaCB0987]

Triassic animals are really awsome

[@GustavSvard]

These videos would make for amazing content to show at natural history museums.

[@egillskallagrimson5879]

Is Dilophosaurus really a separate family from Coelophisys beyond any doubt? because Gojirasaurus seems to be like a step before a bodyplant like Dilophosaurus...

[@jurawild]

these were the ancestors of the large theropod dinosaurs that would arise during the jurassic. btw the front limbs look so funny

[@savvygood]

Wouldn’t want to meet one of those in the dark woods!

[@posticusmaximus1739]

In PBS the dinosaurs, episode 3; Dr. Paul Sereno wept when he discovered a perfectly preserved Hererrasaurus skull

[@Xbalanque84]

Well, who could blame him?

[@HassanMohamed-rm1cb]

Hey Dr. Polaris, right after the evolution and the history of the Hadrosaurs, Dryomorphas, why don't you get to think of a suggestion and creating a KZbin Videos all about the about the evolution and the history of the Prehistoric Marine Reptiles called the Palaeophiidae (Palaeophis), the Extinct Marine Serpentes (Snakes) that are the relatives to the Extant File Snakes, such as Archaeophis, Palaeophis, and Pterosphenus, in the next couple of weeks to think about that one coming up next?!⭐️⭐️⭐️⭐️⭐️👍👍👍👍👍

[@posticusmaximus1739]

I really like the Herrerasaurus animations in PBS The Dinosaurs! Episode 3 (1992). They eat a Thrinaxodon, kill a Rhynchosaur and get chased off by Saurosuchus.

[@cyankirkpatrick5194]

This is very interesting and scary at the same time 😮 and they also discovered a dolphin type crocodile from the ancient times, but didn't you cover this one before 🤔🧐🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿💂‍♂️☕

[@Tsotha]

it's amazing how varied era Triassic era crocodiles got

[@jaredmn8580]

All species had humble beginnings, even the dinosaurs.

[@chuckokelley2448]

" GOOD SHOW " Mate

[@Zilch.0]

I can't believe this is the voice of a man who "grew up in the 90's". I don't mean it as a negative. I just imagined someone who saw the moon landing on tv as like, a 12 year old.

[@dr.polaris6423]

Yeah was born in 93 but I do sound like a 60 year old man!

[@Zilch.0]

@dr.polaris6423 Wow -I'm nine years older than you. I never would've guessed. Well, It's a good voice for a paleontology channel. It gives some gravitas to what you're saying.

[@benyboy-fm7qt]

1:06 what's the therapy on the right?

[@eliletts8149]

Dang, I am late knowing about the news of Eoraptor...

[@thisisastrobbery363]

Where is Smok

[@kmfdm5]

Pseudosuchians were the og’s of therapod anatomy

[@MrWanapon]

How did they know Eoraptor is not a theropod when all we got of Eoraptor are bones?

[@dr.polaris6423]

Paleontologists look for certain anatomical details of fossilized bones which allow them to place extinct animals into certain lineages. Newer detailed studies have shown that Eoraptor possessed certain physiological traits of Sauropodomorpha, including a downturned jaw tip and a long deltopectoral crest on the humerus.

[@magnolia1253]

I will personally fight anyone who says dryosaurs are boring...

[@safeysmith6720]

Your vids are great but consider changing that clown music at the beginning. I recommended your videos to two of my friends who are beginning to take interest in this sort of thing, but both told me they turned it off as soon as the music began. So now they are watching someone else’s stuff. 🤷🏻‍♂️🤷🏻‍♂️🤷🏻‍♂️ Just sharing this with you. The music is super annoying. Take it or leave it.

[@dr.polaris6423]

Interesting, I've never heard complaints about it before but thanks for sharing your opinion.

[@colbykeating2412]

i HATE THERAPODS 111111!!!!!!!!!!!!!!!!!!!!

[@Dr.Ian-Plect]

What's a Therapod?

[@colbykeating2412]

@@Dr.Ian-Plect mb theropds

[@Dr.Ian-Plect]

@@colbykeating2412 What's a theropd?! Anyway, you got the point.

[@Dinosaurprince]

The arms look stupid.

[@isaacthedestroyerofstuped7676]

Bet a theropod would say the same thing about us if it could lol

[@Tsotha]

wait till you see abelisaurids