April 2024 - Paleontology in Review

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00:08
Genetic relationships of all bird groups
doi.org/10.1038/s41586-024-07...
01:07
Dating bird diversity and origins
doi.org/10.1073/pnas.2319506121
01:45
Earliest hoopoe and relatives
doi.org/10.1007/s12542-024-00...
03:07
Diversity of Eantiornithines
doi.org/10.7554/eLife.89871.3
04:05
Defining Lagerstätte
doi.org/10.1016/j.tree.2024.0...
05:46
Preservation of frogs in the Geiseltal Lagerstätte
doi.org/10.1038/s41598-024-55...
06:30
The best fossils of the shark Ptychodus
doi.org/10.1098/rspb.2024.0262
08:01
Oldest large seagoing crocodile
doi.org/10.1098/rsos.240071
08:52
Evolutionary history of tethysuchians
doi.org/10.1017/pab.2024.5
10:26
Function of ridges in marine tetrapods
doi.org/10.1017/pab.2024.10
12:03
Psuedosuchian body mass estimates refined
doi.org/10.1002/ar.25452
13:56
Histology of psuedosuchians
doi.org/10.1002/ar.25455
14:55
Histology of early archosauriforms
doi.org/10.1371/journal.pone....
15:41
Skull anatomy of a small parareptile
doi.org/10.1371/journal.pone....
16:20
Tadpole evolution
doi.org/10.1111/brv.13084
17:24
Co-occurring lagerpetids
doi.org/10.1016/j.jsames.2024...
18:10
New Palacrodon species
doi.org/10.1080/02724634.2024...
19:38
Archosauriformes of the Panchet Formation, India
doi.org/10.5710/PEAPA.26.02.2...
20:33
Tr-Jr dinosaurs of India
doi.org/10.1080/08912963.2024...
22:09
Lizard origins in Eurasia
doi.org/10.7717/peerj.17277
22:39
New dinosaur, Dornraptor
doi.org/10.26879/1346
23:33
New theropod material from Cañadón Asfalto Fm, Argentina
doi.org/10.1080/14772019.2024...
24:32
Diversity across the Morisson Formation
doi.org/10.1080/02724634.2024...
25:35
Size gradients in Dinosaurs near the poles
doi.org/10.1038/s41467-024-46...
26:27
Cold Cretaceous, with warm snaps
doi.org/10.1038/s43247-024-01...
27:12
Fossil bone eating worms
doi.org/10.1098/rspb.2023.2830
28:37
Reexamining the saber-toothed salmon
doi.org/10.1371/journal.pone....
29:08
Saber toothed mammals with different kill mechanisms
doi.org/10.1002/ar.25451
30:26
Young hadrosaur chewing mechanics
doi.org/10.18435/vamp29395
31:41
Titanomachya, a new titanosaur genus
doi.org/10.1080/08912963.2024...
32:15
Review of fossils in NE Brazil
doi.org/10.1080/08912963.2024...
32:53
Anatomy of Oryctodromeus
doi.org/10.1080/02724634.2024...
34:05
Jingia is now Jingiella
doi.org/10.1080/08912963.2024...
34:27
What was Ajkaceratops
doi.org/10.1093/zoolinnean/zl...
35:14
Giant troodontid tracks
doi.org/10.1016/j.isci.2024.1...
36:31
Are small thereopods mostly baby large ones
doi.org/10.4435/BSPI.2024.08
38:01
Quantifying T. rex brain power
doi.org/10.1002/ar.25459
39:12
Birth-death models in the fossil record
doi.org/10.1111/cla.12577
40:25
Recent extinctions of megafauna
doi.org/10.1017/ext.2024.4
41:39
How the weirdest kangaroos grew their faces
doi.org/10.1080/02724634.2024...
42:27
Unique neck morphology of Zalambdestes
doi.org/10.1016/j.scib.2024.0...
43:33
Pliobates phylogeny revised
doi.org/10.1038/s41467-024-47...
44:40 Neanderthal found in marble
45:35 West Virginia opens the door to teaching intelligent design
46:07 Giant ichthyosaur- Ichthyotitan severnensis
doi.org/10.1371/journal.pone....
46:35 Largest madtsoiid snake- Vasuki indicus
doi.org/10.1038/s41598-024-58...

[@jamesbartholomeusz3771]

Congratulations on breaking 40k I've been wanting for it for a while 🎉🎉

[@andredeoliveirafonseca3034]

Nice to see our lagerpetiids showing up.

[@RaptorChatter]

I cannot express how much I love Triassic fossils that are onithodirans, but not dinosaurs. I find them super interesting, and I really hope y'all find a really solid completeish transitional form, as unlikely as it is.

[@andredeoliveirafonseca3034]

​@@RaptorChatter We hope we will one day pull the half-pterosaur out of the ground 😆

[@johnh539]

Time : 10,26 teeth: If you are a predator that holds it's prey in it's mouth then perfectly conical teeth act as a plug preventing blud loss but with ridges the prey bleeds when held so making the death grip more efficient. Note also holding your prey is even more important at sea because you cant "Just poot it down"

[@RaptorChatter]

That is another hypothesis, which may be getting tested. I imagine a hand pump for fake blood through a muscle like medium and different tooth types being inserted into the could test for this decently well. The issue is even large sharks don't have it.

[@KellyClowers]

Thank you for the review! great resource as always

[@RaptorChatter]

Thanks!

[@nyeti7759]

Another excellent recap. I really appreciate that you not only cover a load of cool studies but also tell us when a paper's conclusion is "um... we don't know" 😄

[@cronie8207]

Love your videos. I find them really fun to watch and informative in my free time. Thank you for making thse

[@ChrisFixedKitty]

Another thank you for all the work summarizing a very, very full month of papers!

[@highfive7689]

Thank you for making these awe inspiring episodes!

[@tinyelvenmitten1774]

Thank you as always! i love watching these sum ups!

[@RaptorChatter]

Good to hear!

[@mudgetheexpendable]

Thank you for doing so much work on your videos. This is a mammoth (! sorry) task. I myownself am very grateful to you.

[@michaelbondt8202]

Theory: the tooth grooves allow air breathers to open their mouths quickly while under pressure.

[@RaptorChatter]

I like this idea. There's a lot of hypotheses floating around, but I think this could be tested with a few good biomechanicists. Sounds like a great masters or PhD project

[@michaelbondt8202]

Anyone needs a thesis topic it's yours

[@grantboardman7880]

Imagine having a limestone counter top with part of a Neanderthal skeleton in it...

[@GustavSvard]

18:55 one thing that strikes me is that the other teeth all have very vertical inner walls, whereas the Palacrodon browni is mostly horizontal. My thought is that maybe the ridges are there to provide more verticality to the surfaces for the ligaments (or such) to attach to so that the teeth have a firmer grip to the jaws? Maybe that's part of the hypothesis the researches propose in their paper?

[@PABrewNews]

Yay!!!

[@RaptorChatter]

I know we've been slow and busy, we're trying to keep up I promise!

[@PABrewNews]

It's all good, I knew it takes a lot of time and effort to do these. We're just glad to see you. Cheers

[@Pffmah]

Appreciate u

[@PolandRocksENG]

Paleontological site in Miedary was the most interesting discovery in Poland in 2023. Highly recommend our movie on this topic

[@PaleoNerd44]

New raptor chatter vid?

[@nicolegoodew1547]

I don't normally skip ads, but I got an hour and 43 minute ad from Apple. Idk how Apple had a movie length ad....I'm sorry I skipped an ad but thats way too long for any youtube video. And YT says there's no time limit for how long an ad can be. Great content.

[@millenniumy2kay]

Are you gonna be attending the NAPC this year? This'll be my first one :D

[@MaoRatto]

4:32 Stop ignoring the unlaut on ä. It's an e sound in bet, fet, pet which is short indicated by the "tt". While the last syllable's -en is a schwa.

[@vinny184]

Yeah stä- is pronounced like ‘stea-’ in steady. Then just add a short ‘the’ sound. It’s not hard to correctly pronounce Lagerstätten.

[@grantboardman7880]

I bet you were super excited about the Palacrodon.

[@RaptorChatter]

It was nice to see it was named after Bill. Hopefully he'll be on my committee at NAU starting this spring, still need to hear back from the primary person at NAU for that, but fingers crossed.

[@grantboardman7880]

@@RaptorChatter he would be an awesome addition to your committee!

[@grantboardman7880]

@@RaptorChatter did you happen to catch Brent Adrian's talk on Giant Otters at this month's SPS meeting?

[@RaptorChatter]

No, I tend to forget about those meetings, I'll add the next to my calendar!

[@Shaden0040]

I took German like some 45 years ago in high school lager is beer stott is city I believe or state so a lot of your stuff means beer city sounds like a good time somebody must have found it during Octoberfest that's all I can say. lol

[@HassanMohamed-rm1cb]

Sorry, it’s a mistake. But hey, why don’t you think of a suggestion making a KZbin Videos all about Dakosaurus, the “Biter Lizard”, an Extinct Prehistoric Metriorhyncid (the Marine Crocodile) the “Godzilla” of the Jurassic and the Cretaceous Seas on the next Raptor Chatter coming up next?!⭐⭐⭐⭐⭐👍👍👍👍👍

[@HassanMohamed-rm1cb]

Hey Danielle Dufault, why don’t you think of a suggestion making a KZbin Videos all about Dakosaurus, the “Biter Lizard”, an Extinct Prehistoric Metriorhyncid (the Marine Crocodile) the “Godzilla” of the Jurassic and the Cretaceous Seas on the next Raptor Chatter coming up next?!⭐⭐⭐⭐⭐👍👍👍👍👍

[@RaptorChatter]

Not sure why you're addressing Danielle Dufault.

[@nonope7359]

Birds in review.

[@zombiedad]

Don’t go extinct!❤

[@pef1960]

You're an educated guy, and I enjoy these reviews. But it's not "Lagerstat" it's Lager-stet-e".

[@Shaden0040]

Hey Raptor Cheddar I just found out something really really interesting they may have . found the first dinosaur fossil above the KT extinction zone it is tracking in the proper sediments above the KT boundary is the first sentiment just above the KT boundary and it happens to be a serotopsian I don't remember if the top of my head which one it was but I believe it's from Canada and they're saying it could be possible that it lived maybe 10 or 20 years after the extinction event when things were just starting to get back together and it may have been one of the few hundred left a bit species but it never found a mate and thus died it wasn't a juval either it was a full adult size from what I understand there was a paper done on it I don't know where the paper could be found but I'm sure you could probably Google it and find it It's a very interesting read He's literally if the KTL boundary is a piece of paper this is the piece of paper right above it and it's like tissue paper thin so it may been around for the impact or may have hatched right after the impact and then lived a good 1020 years but there may not have been anything else it may be the last dinosaur on Earth at least for North America And it was found up in Canada I don't want to say the Yukon but Alberta northern Alberta and I don't know what formation was in I wish I did but it's definitely after the KT boundary and the only other place that suspected is New Zealand which is the opposite side of the planet from the explosion the impact. that's still unconfirmed the one in New Zealand but they're hoping beyond hope that they get some concrete evidence of when that was deposited by radioactive decay information from various isotopes. but you just you definitely do a paper on it because it is an interesting topic and subject matter of a possible certopsian living past the KT extinction level

[@michaelmorgan-hr7le]

I heard a Ceratopsian was found above the KT Extintion too . Reputedly a Triceratops. Not sure I believe it. It was a long way from the explosion and possible they survived for a while longer. Not a theory to rule out completely

[@Shaden0040]

no my parents weren't devout Christians but they were Christians and they were smart enough to know that evolution was God's mechanism for making everything that's what bothers me is that They're Christians out there they're like Oh my god can do stuff well how does God do stuff he uses the tools at hand evolution is a tool simple as that that's all it needs to be explained god uses evolution as a tool to create All the species from a single organism through time they'll accept it trust me if you say it that way don't be like oh it's not getting anything to do with God it could have something to go we don't know we don't know all the answers to everything in the world in the universe heck we don't even know how the universe began Accurately we weren't there we can't tell so maybe that's part of the system the big bang happens stars develop explode create more complex atomic structures and molecules and those join together to create planets and on some of those planets they're rocky worlds that have water and **** you have life How that happens we still don't know how life starts out of nothing an inorganic material the organic substances but basically they're not organized to recreate themselves yet how an organism becomes an organism from inner material we don't know we cannot replicate it ourselves We have some ideas how it might have happened but nothing that we can prove yet so if we're going to convert the non convertibles explain it that way explain that God is using or whatever the creature is being great being that had created everything is using evolution to do his handiwork he doesn't want to take her around every day and say Oh my God I need to make this feather this much longer and change the color to make it a new species and so on and so forth No he let nature take care of it Nature is the partner to the creator. and that makes sense it's like Mother Nature and Father God if you want to put it that way they're married they're having offspring they're having animals and plants and bacteria and all sorts of stuff because that's what it is kinda it's implicit way of putting it that is what it is And maybe some people are just not intelligent enough or sophisticated enough to figure that out. and they just need the little guidance to show them how it works when I went to church when I was a kid that was understood god did a lot of stuff but he didn't do it by himself And he used tools to help him get there from bacteria all the way up to human evolution dinosaurs everything in between birds whatnot. even bird the dinosaurs birds crocodilians archosaurs world tetrapods humans everything 4 limbed creatures it's a general body plan that's still working today very effectively I might add.

[@johnh539]

Some scientists are religious some are not ,the two don't need to be in opposition. There are convergences between both. Sadly the Cristian's who claim that god created earth in ten days apear far two often in comments I do sometimes wander how they would like it if someone walked into a sermon and started discussing Palaeontology because they thought they had a god given rite to do so. Both have their time and place.

[@Shaden0040]

and you should learn about the birds because birds are the dinosaurs Only living relatives. I'm tired of people calling Crocs and Gators and dinosaurs even they call Garial Gars and paddlefish and Sturgeon's dinosaurs i'm like no they're not dinosaurs they're fish fish are not dinosaurs fish are not even reptilian so yes birds are dinosaurs get used to it I know it's difficult after the many years of saying everything now they're not dinosaurs they're not dinosaurs they're not dinosaurs and we find out they are dinosaurs yay I knew it all along I was one of the few people from back in the 60s late 60s when I was a little kid going the course of the dinosaurs If skills on their legs they have scales around their eyes they have a lizard eye type I. They have a cloak just like every other reptile.

[@joeshmoe8345]

haha what

[@mario97br]

If your account wasn’t 18 years old, it would seem as if you are quite young.

[@vinny184]

What are Dinosaurs if not just really highly but strangely evolved fish?

[@sumirsookdeo9443]

Tyrannosaurs were dumb. Admit it they cannot beat Ankylosaurus.

[@seanmckelvey6618]

How old are you?

[@bearzilla2462]

Pro Tip: Hair Combs do exist and are cheap.