July 2022 Paleontology in Review
ฝัง
- เผยแพร่เมื่อ 22 พ.ค. 2024
- 00:00 Join our Discord: / discord
00:11 Most important fossil there is from before the cambrian
www.nature.com/articles/s4155...
01:14 Vertebrate pharyngeal skeleton in yunnanozoans
www.science.org/doi/10.1126/s...
02:32 A three-eyed radiodont- Stanleycaris
www.sciencedirect.com/science...
04:20 Balhuticaris voltae
www.cell.com/iscience/fulltex...
05:40 Parvibellus atavus with gilled lobopodians, opabiniids and radiodonts
www.frontiersin.org/articles/...
07:11 New Lagerstätte from the Lower Ordovician of South China
www.researchgate.net/publicat...
07:47 A new elpistostegalian- Qikiqtania wakei
www.nature.com/articles/s4158...
09:29 The earliest gorgonopsians from the Karoo Basin - Phorcys dubei
www.sciencedirect.com/science...
11:11 The oldest record of Saurosphargiformes from South China
peerj.com/articles/13569/
12:54 A new pachypleurosaur- Prosantosaus scheffoldi
link.springer.com/article/10....
14:06 Palaeobiology of the early sauropodomorph Mussaurus patagonicus
onlinelibrary.wiley.com/doi/f...
15:39 Arctic ice and the ecological rise of the dinosaurs
www.science.org/doi/10.1126/s...
17:28 An early-diverging crocodylomorph from the early Norian (Late Triassic) of Texas
www.tandfonline.com/eprint/BK...
18:10 Inner ear biomechanics of mammals
www.nature.com/articles/s4158...
19:52 Middle Jurassic fossils document an early stage in salamander evolution
www.pnas.org/doi/abs/10.1073/...
21:18 Modeling the abundance of large carnivorous dinosaurs of the Upper Jurassic Morrison Formation
anatomypubs.onlinelibrary.wil...
23:51 Life before impact in the Chicxulub area: unique marine ichnological signatures preserved in crater suevite
www.nature.com/articles/s4159...
24:57 Ammonite robots
www.nature.com/articles/s4159...
26:20 The developing bird pelvis passes through ancestral dinosaurian conditions
www.nature.com/articles/s4158...
28:02 More bones of Leptoptilos robustus
royalsocietypublishing.org/do...
30:10 Late Pleistocene and Early Holocene Birds of Northern Vietnam
www.mdpi.com/2571-550X/5/3/31
32:06 Occupation of the North American Colorado Plateau ∼37,000 Years Ago
www.frontiersin.org/articles/...
33:50 Insufficient Evidence for Multiple Species of Tyrannosaurus
link.springer.com/article/10....
34:04 The osteology and affinities of Eotyrannus lengi
peerj.com/articles/12727/
34:45 Meraxes gigas reveals convergent evolutionary trends in theropod arm reduction
www.cell.com/current-biology/...
35:20 Patreon: www.patreon.com/raptorchatter
Twitter: raptor_chatter
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I always had the theory that Rexes appear relatively "too" often in the fossil record because they ran around and ate the bones of dead herbivores, meanwhile Theropod corpses were avoided, similar to many species today where big carnivore corpses (bears, hyenas) dont get looted by other big carnivores (wolves, lions). This could lead to conservation bias adding to the effect, that smaller animals dont get preserved as well and thus leading to a smaller appearing herbivore sample size.
That could very well be a part of the bias.
Also we know modern herbivores will eat bones and even living animals to get extra calcium, so many of the bones of herbivorous dinosaurs may have been scavenged by their fellow herbivores for calcium, which would make sense considering how many had bony bumps and protrusions which would require large amounts of calcium to form in the first place.
Glad you make these videos, I really like them. We are finding so much!
Glad you've enjoyed them!
Very cool to hear about the discovery of a cnidarian in the Ediacaran. It’s undoubtedly one of the most important yet understudied fields with regards to animal evolution (in my opinion). Discoveries like this are just the tip of the iceberg :)
Absolutely! The fact that paper came out the same day as the Tyrannosaurus paper sucks, because all the headlines were focused on that instead.
The Newark Supergroup, also know as the Jersey Special, ruled long island in the late 70s and their album is woefully underrated.
Thanks for the updates my man
I live in the charnwood forest area, I've been to the places where the ediacaran fossils have been found plenty of times. They actually have a big slab of fossils on display at the museum in Leicester which is really cool.
Here in Portugal (my country) this week started to appear some news about the finding of a very big brachiosaurus. I hope to find more details in here next montly recap :)
AWESOME EPISODE!
One good explanation for why large predatory theropods seem to be surprisingly common compared to the number of their prey could be that dinosaurs bred much faster than mammals (because they laid eggs and started breeding before they were fully grown): because of this, populations of herbivorous dinosaurs could replenish their numbers much faster, allowing them to withstand a much greater level of predatory pressure than populations of large mammalian herbivores could.
Potentially, but this was mostly done just with mass estimates of herbivores and estimated food demands of predators. Which means there's a lot of leeway. And unfortunately we don't have a great sample for how quick all of the groups grew, meaning while it is a possibility it could be any of the others, or a combination of all of them. Though, your idea may be the easiest to test.
Awesome stuff. Thanks Raptor Chatter.
You're welcome!
7:55 Is it "Tick-ta-leek" or "Tick-taal-ick"?
Because I (and many others) mostly pronounce it as the latter.
It is the other. I was exhausted from writing and the amount of recording we were doing, so just totally missed that I said it wrong.
When you said vertebrates only have two eyes, I immediately thought about the parietal eye, or pineal organ, which is a photoreceptor on top of the head of fish, amphibians and reptiles which helps them determine the time of day (for feeding or sleeping). And which became the pineal gland in humans and other vertebrate which helps regulate sleep cycles. So the reality is that many vertebrates still have retained three eyes. The question is whether that traces a direct lineage back to ancient invertebrates, or whether it evolved again after it was lost?
Also just like to say I really appreciate the work you put into organizing the research and writing your scripts. Its really a great job!
It is very possible it did, but those still don't function for vision to the same degree more developed eyes do. They're definitely important structures in an evolutionary sense, but the general vertebrate plan of having two well developed eyes is pretty consistent.
The dinosaur man returns to spread more dinosaur knowledge! Praise to the dinosaur man! May he return to teach of dinosaurs!!!
July sure was amazing and long so that's great and this video was amazing too
So much. There were papers I had to cut which would have made almost any other month.
Oh
Stanleycaris was not the first Cambrian panarthropod found with a large, central compound eye. There are also _Goticaris longispinosa_ and _Cambropachycope clarksoni,_ the latter of which apparently had no other eyes in addition. Could this new discovery be evidence for a closer relation between those species?
Oh wow, I hadn't heard of those, they're kinda wild. It could be an indicator of that relationship, but that's not what was compared in this study, unless it's buried in the supplemental data somewhere. I personally am not super familiar with Cambrian animals, so I appreciate the info!
3 years ago I clicked on E.D.G.E. by accident. My point? I see you, Ezekiel, in an arena style lecture hall with slideshow. If you're not teaching live you should be. With field trips to China and Africa and South America. And Canada, can't forget Canada.
Those H. floresiensis were probably tough little dudes. The may have been only 3 feet, but I'll bet they could kick some ass.
Probably. There is evidence of stone tools, and they were potentially hunting Stegodon as well.
Your videos will be a part of the paleontology history. Stop... THEY ACTUALLY ARE!!! Cool.
Could you make a palaeontology preview of argentina please?
There was something I was thinking about which Argentina would fit into. I just need to figure out how to get it to work because I'd want to cover all 32 relevant countries.
@@RaptorChatter ok thanks but if you do this it will start with the top most important palaeontologist countries or from the lesser know?
TH-cam recommendations hit diff
29:26 The first specimens were discovered 2 months before "The Return of the King" came out.
I’m a simple man. I see tiktaalik and anomalocaris in the thumbnail and i have to click
They're good animals.
1:10- Yes, the emergence of blob world from goo world.
Balhuticaris voltae doing yet another remake of Dumbo.
I just remembered that TH-cam is an instructional platform. Never mind former comment.
I come here for the pronunciations
I think tiktaalik is pronounced tick tah lik th-cam.com/video/ZxZ3eN4ZUgI/w-d-xo.html I heard it pronounced that way in the video called "Your Inner Fish" by the guy that discovered it. BTW I always upvote your videos and am happily subscribed and look forward to every video.
Thanks for the heads up. Honestly, with so much to record about in this one I probably just totally spaced on the proper pronunciation. And thanks for the support!
The pelvis does a 180? This strains credulity.
Stanleycaris had a much more successful brother who took the stage name MacDonald Carey
🎶Started out as a fish, how did it end up like this? It was only a fish, it was only a fish! Necessity, driving fish out of the sea, thinking please don't eat me, let me go! I just can't stop, or they're killing me! In a poké bowl!🎶