The BIOGEOGRAPHY of the DINOSAURS 

When you can hear how eloquent he chooses his words, you know he got inspiration from the best dino out there. The thesaurus

“As a kid I was never interested in dinosaurs” Me: “Dude are you sure you ever were a kid?”

Wow this covered such a long span. You really outdid yourself on this one. Fantastic video!

Are we just gonna ignore the fact that he said he wasn't interested in dinosaurs as a child? Like... thats a thing?

Doing a face reveal is one thing, but doing a handsome face reveal is quite another.

Atlas Pro: *reveals face* Me: So you're 3blue1brown's brother.

You left out a very large and major part of the theropod family tree: The Carcharadontisaurians. They began in the Jurassic with early off shoots being the likes Allosaurus and Saurophaganax (aka Allosaurus depending on who you ask), and diversified into monstrous big game hunters in the Cretaceous. These were dominant in the ecosystems they were present in, which included Appalachia (Acrocanthosaurus), South America (Tyrannotitan, Mapusaurus, and Giganotosaurus), Africa (Carcharadontosaurus), and Europe (Neovenator). From what I remember, they tended to die out as the Late Cretaceous entered full swing. South America is very interesting in this case as when the Giganotosaurs left the fossil records, the niche for hunting large sauropods (maybe not Argentinasaurus, there was plenty of other sauropods in the area that could satiate them) was left totally vacant and afaik we haven't found anything that took their place. The Abelisaurids, as wonderful as they are, simply weren't capable of filling the niche left behind by one of the largest land predators to exist. As a matter of fact they seemed to be doubling down on the speed demon approach, with Carnotaurus being the fastest theropod we know of being built for running down prey. This was generally the case for Abelisaurids everywhere, constantly living in the Carcharadontisaurs' shadows (India and Madagascar being the obvious exceptions. These amazing animals deserve some attention, but more importantly if you're interested in more biogeographics with relations to dinosaurs but on a smaller scale, check out Hațeg Island specifically. It's a wild ride of dwarfism beneath the shadow of a terrifying animal.

So... when are we getting the biogeography of ancient plants and forests? Would love to see maps of where the Progymnosperms, Calamites, Lycopsids, and Cladoxylopsids first colonized (although I do recall that the plains off of the early Appalachians were some of the earliest forested regions). So much to explore there!

AtlasPro: “Even as a kid I was never really interested in [dinosaurs].” I present to you proof that AtlasPro was actually grown in lab to be a super-intelligent super-human.

I DIDNT EXPECT A FACE REVEAL minus that one time he showed a picture of himself and girlfriend

Some respectful notes on the information from the video (primarily the first part): - Although Pangea was entirely connected, large interior deserts made it difficult for species to move to new regions. This is why the earliest dinosaurs are almost exclusively found in South America; they didn't spread further until the late Triassic. - Carnivorous theropods do predate the Triassic-Jurassic extinction, though as stated the top predators of the time were not dinosaurs. - The Triassic-Jurassic extinction corresponds more closely with the breakup of Pangea than with its formation. - Although the continents began to separate in the Jurassic, the biogeography was still pretty consistent globally. Sauropods were the dominant herbivores, with some Ornithischians being present, while the dominant predators were Allosaurs and, secondarily, Ceratosaurs. When the biogeographies of Laurasia and Gondwana began to diverge during the Cretaceous, Gondwana kept the same biogeography from the Jurassic (with Allosaurs and Ceratosaurs being replaced by Carcharodontosaurs and Abelisaurs, respectively) while Laurasia developed the diversity of Ornithischians and Coelurosaurs (e.g., Tyrannosaurs and Dromaeosaurs) discussed in the video. - Spinosaurs, although they could be longer than other large theropods like Tyrannosaurs and Carcharodontosaurs, were more gracile and therefore lighter weight. They would not have required buoyancy to support their body mass. Additionally, Spinosaurs were also found in South America and, in the case of Baryonix, in Europe. As someone who was (and still is) very interested in dinosaurs, I think biogeography is a useful and interesting lens through which to understand them, and I commend the video for exploring it.

Actually, Pangea formed more like 250 million years ago, closer to the Permian - Triassic extinction, not the Triassic Jurassic Extinction. By that time Pangea was already begining to split apart.

YOU HAVE A FACE? I THOUGHT YOUR VOICE WAS JUST THE SPIRIT OF SCIENCE SPEAKING.

"This large circular structure in southern Mexico." Heh... We know what's coming...

I've been fruitlessly searching youtube for a video on this topic for a while now and this is exactly what I wanted to see. Thank you!

I am with you on the distinction between knoledge and information. Raw data does not in and of itself bring understanding, which to me is the most important point of learning (and why I enjoy watching your channel). Your face is fine with me. I also appreciate your clear diction.

"dont be nervous squidward, just picture him as a face reveal" "oh no hes hooot"

When I looked at the screen, I see animated stuff, seconds later after I looked away and back again, I see a face reveal

Oh, he's got to be handsome too, right? Well that's just great. Mariana Trenches called this morning, they say they've found my self-esteem.

Carcharodontosaurs and other Carnosaurs on South America, Africa, and Asia: are we a joke to you?

I cannot think of a better video title to wake up to than "The Biogeography of the Dinosaurs" and see the AtlasPro compass on my screen. This is the greatest gift to receive. Thank you, best channel.

60% of the comments: Atlas Pro is handsome 35%: questions about the video and love for dinosaurs 5%: Random stuff

Thank you so much for this! It's amazing how much a mapping can really help engage with data, even one as popularized as dinosaurs. Even if it's just a small fraction of the known knowns alongside a lot of "here be dragons" known unknowns, it really helps shake some cobwebs loose and reignite curiosity.

I do have one criticism: where are the allosauridae? They play a HUGE role in Cretaceous South America and the Mid Jurassic. Either way, everything else was stellar!

definitely the coolest thing in palaeontology isn’t the memorising of names but the story of evolution and how ecosystems and species have reacted to a changing planet

Atlas Pro being one of few of the youtubers who's face matches and even improves on the voice

Absolutely great video, puts it really simply and clear. As for the Spinosaurus thing, I think it's just niche filling. Spinisaurs shared their habitat with several other massive, and much more powerful, theropods such as Carcharodontosaurus. An aquatic lifestyle off fish so as not to compete with those predators makes a lot of sense.

Finally the legend has reveal himself

Finally, a video *real* people care about. 😛 -A paleontologist

"the biogeography of dinosaurs" is one of the best possible titles for a video, of any kind. Except maybe "the biogeography of dinosaurs, PART 1/30"

Biogeography is such a fascinating field, and the biogeography of mammals and dinosaurs is especially interesting. Also, I love how your animated map is sitting on graph paper ... such a cool effect! Always nice to put a face to a voice, too. Thanks for this cool video!

I really wanna point out that spinosaurids were also discovered in South America (see Oxalaia, or Irritator), further adding to the connection with Gondwana. Also, in both these places, but especially Gondwana, the true apex predators (on land) probably were the carcharodontosaurids, very large predatory theropods. Anyways, amazing video, super clear and well put as always ! You rock, thank you !

The time of the dinosaurs isn't over; avian dinosaurs are still the most widely distrubuted and one of the most successful taxa on the planet.

Atlas Pro: Releases a over twenty minute long video on a super interesting topic and presents it amazingly me: he cute

The context of this video I found really helpful. It really highlighted the patterns in different body forms and evolutionary tactics of each of the separate geographic regions that I've never seen elsewhere

Great video as usual. You have the knowledge, energy, voice, mannerisms, and face for you’re own prime time nature show. Hope you get “discovered” soon.

I'm emotionally prepared for the all plants version of this vid

When Atlas Pro uploads, you know you gotta click it

Your proces of interest, exploration and then synthesising into a story with a clear concept to explain is awesome and makes these really streamlined. And then for some reason you also have a radio voice lol.

I love your videos - so well thought out. One correction and one addition on this one: 1. "Ceratops' " as you said are actually called Ceratopsians. 2. Dromeosaurids were also super common in the theropod lineage in western north america.

We need a video covering the plants in this period too now!

I appreciate you actually using mostly up to date dinosaur reconstructions despite being new to this topic. Most popular science journals I've seen would just slap some Jurassic World models on there and call it a day.

I love the new IRL style with the additions, interestingly enough I didn't get this vid in my subbox but I'm here now!

I like the documentary style cut ins with you speaking in person, please do more of it.

When I heard "I was never really interested in dinosaurs as a kid..." I had to try really hard to not stop watching... i was like, "give him a chance... it doesn't necessarily mean he's a bad person... let him work..." in the end great video!

Atlas pro:Gondwana was ruled by abelisaurs and spinosaurs The carcharodontosaurs:Are we a joke to you Atlas pro: Yes

Great vid, sure helps to better understand this when you can see the geology of the time in question. Finally a vid that combines sea levels, continental drift & dinosaur extinction time line. Thanks

This may be a bit late, but I've recently discovered your page and I'm obsessed with this video format and the content you present! You seem to be able to answer questions about so many aspects of geography that I could not even formulate yet! Please keep up the work! ANd your face is an excellent addition! It adds a very human element and makes the videos even more touching on a metaphysical level! Thanks Altlas Pro!

"Majungasaurus" is just so fun to say. It sounds like a fake dino in a Jurassic Park fan fic.

“...with Greenland even remaining covered to this day.” Look forward to checking in on how this statement ages, in about... 11 minutes. 😔

This is one of, if not the best educational youtube channel. I always get so invested in these videos, so much more than in any other channel. It's even kinda crazy.

The density of information in this largely accessible video is amazing.

Just an FYI: the most recent study on Spinosaurus as of January of 2021 strongly suggests that it was not semi-aquatic like a crocodile, paddling with its tail, but was wading in the shallows like a heron. 😉

He looks exactly how I imagined after hearing his voice Edit: well almost

I can't believe I haven't stumbled upon your channel before! As an ecology major biogeography is right down my alley

I love this channel. My professor and I were talking a few days ago and it turns out we both subscribe to you channel. Keep up the good work.

les goo instead of my university enterance exams i will watch this and it will probably actually help me do the geography tests

Damn, don't think I've ever been this early for an Atlas Pro video before. And on a subject I really love too!

Thank you for making such awesome videos! I love binge watching your channel! Even videos I've seen already are worth watching again because of the insane amount of knowledge!

Loved this video as always, really nice to see you in it. Would be great to do plants of this time. Keep up the great work.

Confirmation that the wallpaper shown in the nebulae video is actually him.

This channel is honestly the best because its not just more boring geopolitics but it has biogeography and pre history. Keep the the vids coming dud!

Relearning Biology through this channel. And I learned a lot. Kudos to the people behind; the host, researchers, producers and everyone. I hope I could thank you more enough.

Love the videos! I used to like books from the library but the way you bring information is so easy and straightforward. Showing you face makes it personal, and that's a good thing. Keep it up!

Godwana was ruled by the Abelisaurs. The Carcharodontosaurs: Excuse me ?

the face reveal we didn’t know we needed

Great video with great information Only nitpick I have is at 8:55 Dynamosaurus is not a separate animal from Tyrannosaurus rex it is just a synonymous name for it which is no longer in use

I've never seen dinosaur evolution presented this linearly, this was super helpful thank you!!!!

I would love this series to continue with plants/flora/geology/smaller non-dinosaurs in the mix. In the words of Atlas Pro himself, thanks.

He’s wearing a coat in the middle of summer Clearly he’s gone mad

It would be awesome to get a video on plants in the Mesozoic! What kind of plant life was there to support these incredibly massive creatures? How was it different from plant life today (e.g the absence of grass)?

That was great!!! I love seeing how life evolved as the continents drifted apart. I remember when it hit me that the continents weren't in their current positions when the asteroid hit 66 MYA. Kinda blew my mind.

The face to face is great. Whenever I watch your vids I feel like putting together all of the graphics is incredibly time consuming so if this helps you push out content faster/easier I am all for it. Really I am for it either way haha. I didn't know I needed to know more about the plants until you mentioned it, I crave it like Brawndo.

He looks like a Scandinavian Chad, props to you man, lol

This simplified what seems like toy-box of animals to an organized collection being displayed. I have many books saying the same thing about their distribution and where certain dinosaurs are found but this really helped.

I love this! I have been fascinated by dinosaurs for a while, but this is the first time I have seen such a comprehensive list of dinosaurs in their geographical context.

One of the best RU-vid channel out there!

This was so so interesting. I've never seen the dinos explained so well before - also, I thought the vlog/face shots were a nice touch! Keep it up.

We need more of these... keep rewatching this

I just ran across your videos. So impressed with the info presented with the maps over time to depict such a complete picture of our changing world! Ice age videos were awesome! This one is awesome! Will be watching many more. Thank you!

You said your just learning and want to learn so I wanted to let you know that new research shows pachycephalosaurs more than likely didn't smash heads for fighting, their bones were too weak and brittle for such activities

I enjoy this channel so much - I learn things that I didn't even know were worth learning. And now you've thrown eye-candy into the mix with a face reveal; marvelous.

Bro your videos have been getting more and more amazing. Just keep doing what you're doing please.

I love seeing you! love you actually hosting the videos (beyond narration)

Damn, Atlas is beautiful

I think one of the reasons for a lack of diversity in Appalachia is that there just isn't much of a fossil record of the Mesozoic era. Due to erosion, much of our bedrock is Paleozoic or older, same as the Canadian islands and Greenland.

Awesome video, I know there are plenty of channels talking about this topic but it'd be cool if you could continue on with these!

This channel is entertaining to listen/watch while drawing!! Amazing content :]

Finally, I have been waiting for a dinosaur video.

7:05 Planet Earth Devs Reptiles: Nerfed Mammals: Buffed

I think the addition of geography is just what we need to really understand what is going on. Please do something similar for plants.

Great video! Love how you told the dinosaur story. Would love the plant side of it too!

His face is exactly what i thought it was. Also, i also have a great curiosity in dinosaurs.

Please do as many of these Biogeography videos as possible. These vids really help when thinking about complex ecosystems and interactions.

Yes, nice to see your face. And fantastic work, once again! I've seen all your video's and your channel is one of my faves!

Great video! I really hope you can talk about plants from the Mesozoic as a whole or at least the Cretaceous

As a Dino nerd myself, this is the best synopsis of dinosaur evolution and diversity I've ever seen. ❤ excellent work

This might just be my new favorite Atlas Pro video.

Awesome video bro! You were right about putting the species on the map, makes it way easier to understand 😁

I love this type of videos, more please ....everything that has to do with hystory of the earth, paleo climate, extinctions,geologicar era's etc...Also nice face reveal....but one question....do you speak and gesticulate so theatrical in your day to day life?