January 2023- Paleontology in Review

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Күн бұрын

Пікірлер: 34

@gattycroc8073 Жыл бұрын

James Cameron said that the oceans need more exploring, but I think the real think that we need to explore is the fossil record. I heard from a documentary that out of all the creatures that lived on this planet 99% are extinct so who knows what could be out there.

@tjarkschweizer Жыл бұрын

A lot of those are microbes and insects.

@gattycroc8073 Жыл бұрын

@@Aiel-Necromancer I know right.

@RaptorChatter Жыл бұрын

David Hone has a joke proposal of "give all science funding to paleontologists". All other stuff will still basically be there, physics aren't going to change. But missing a year might mean some fossils won't exist anymore, so we should give funding to paleontologists to go out and find everything.

@lh1822 Жыл бұрын

I've noticed your presentation style has developed and it's a lot smoother now. :)

@RaptorChatter Жыл бұрын

Yeah, at some point in the last year it just kinda clicked, and I'm not sure why.

@delskioffskinov Жыл бұрын

I've been subscribed for a while and havn't told you how much I enjoy your content! so i'll say it now 'I really enjoy your channel and content lol'!!!

@RaptorChatter Жыл бұрын

Thanks!

@bgbthabun627 Жыл бұрын

@@RaptorChatter can i second these sentiments? i dont write very often, but i do enjoy pretty much each video.

@JamesBartholomeusz Жыл бұрын

i wait for your updates every month, nice balance of entertaining nerdiness and academic rigour.

@zombiedad Жыл бұрын

Good stuff Raptor Chatter. Thanks.

@hatsudopia5085 Жыл бұрын

You make some of the most re-watchable content on you tube. Added this to the rotation.

@fen740 Жыл бұрын

With earlier records of wider ranges, potential earlier dispersal and all, it gets me thinking about how the shared plant genera of E. Asia and N.America might have a light shone on them. I wonder when palynological records have various genera marked either present or absent and what ecological relationships they may have had with the theropods and their prey across both continents. Love the monthly review series!

@RaptorChatter Жыл бұрын

That would be a great thing to test. Sounds like a great project for a graduate student somewhere.

@stefif3118 Жыл бұрын

Some really cool discoveries to start the year with!

@mareikedaubert1139 Жыл бұрын

If I am not mistaken, C3 and CAM photosynthesis evolved in the Cenozoic. These are also plants adapted to drought, so I would not generally expect them in the environment analyzed by Cullen et al. I think C3 is rather mentioned because it is probably the only type of plant growing there. Having said that: I really enjoyed the video, keep it up.

@danballard7405 Жыл бұрын

So that pterosaur is bailing teeth, kinda like a flamingo. I wonder if it ate small shrimp or shrimp like creatures similar to a flamingo.

@t-r-e-x452 Жыл бұрын

10:27 *Inconceivable!*

@ThicThreads Жыл бұрын

That Baleen Dino looks so cool! What a discovery

@artificercreator Жыл бұрын

Nice!

@vincentx2850 Жыл бұрын

Balaenognathus' jaw really remind me of a shoveler, a genus of filter feeding duck that skims the water surface for floating aquatic plants and plankton by swinging its head side to side. While spoonbill has a similar bill, it is a fish predator, and that bill is more of of tong.

@jacobdalland1390 Жыл бұрын

Your discussion of Megaraptor arms got me thinking: were there any bipedal dinosaurs that had arms as long as their legs, like us humans have?

@pef1960 Жыл бұрын

Cratonavis looks like an Enantiornithine to me from the pygostyle. They often have a weird mixture of traits.

@Tuishimi Жыл бұрын

That pterosaur's mouth looks like a shovel. Probably scooping mud and filtering out the yummies inside of it.

@tonyevans9999 Жыл бұрын

"bare bones"...... I lolled

@alioramus1637 Жыл бұрын

Worth noting is that the fingers of the megaraptoran Australovenator was capable of hyperextension

@RaptorChatter Жыл бұрын

Yep, their hands were great at movement. Something not as present in other theropod groups.

@victory8928 Жыл бұрын

they were probably grab masters would make Dilo proud

@KellyClowers Жыл бұрын

I'm confused, why couldn't that swampy region just have been full of c3 plants? It's the most common, and it wasn't arid and I presume not tropical, so less reason for cam or c4 right?

@patreekotime4578 Жыл бұрын

I think the idea was that they expected to see more variety in the isotopes than just C3 because of the variety of species they tested. Like maybe there is a preservation bias at work here skewing the results.

@RaptorChatter Жыл бұрын

This is it. Unless everything was eating all the exact same things then there is a bias present. With some of the smaller species tested you'd still expect some level of change, but was was found wasn't significant enough to suggest it came from the environment, but rather it was a preservational bias which mimicked the isotope signature of C3 plants. And based on the modern analogue environment there probably wasn't just a simple C3 isotope ratio throughout the environment. So it's the combination of what they tested in the fossils, plus the modern comparison which suggests that the C3 ratios aren't the original ratios.