Pompeii’s victims weren’t vaporized. They were indeed killed by a hot pyroclastic flow. The position of many of the bodies indicates it was hot enough to start cooking the bodies, causing the arms to pull into a pugilistic pose and the lips to pull back, but not hot enough to burn the flesh off completely, like in Herculaneum. There were additional falls of lapilli and ash that buried them the rest of the way. The substrate then hardened around them before they decomposed, leaving hollows with skeletons inside. Very few victims were actually preserved that way because the flow cooled a bit on the way through the city, so some bodies were burned away.
@@RaptorChatter There are some excellent, newer documentaries on Pompeii that go into it, both geologically centered ones and historically centered ones.
Thanks for this video. Trilobites have fascinated me since I was a child. Its great to see that we are learning such details about them today. Imagine what we'll be able to learn in a hundred years or a thousand years, if we manage to be around that long.
I want to make sure it’s crystal clear for any creationists here, The paper is only saying that soft tissue was fossilized. Which is different from normal fossils, most of the time there is no soft tissue that also is fossilized. Most of the time it’s only the exoskeleton. This time they were able to 3-D image the fossil and found that the soft tissue was also preserved, giving us insight into the anatomy. For more info, check out the abstract of the paper in the description
Your mistake here is thinking Creationists care about the truth or reality. If they did, they wouldn't be creationists. Good work providing context though.
@@TerraStory225MYA when you argue with creationists, they demand proof from you for your beliefs, while they offer no proof at all aside from some thousand year old stories. And when you give them proof, they deny it or try to understand things wrong on purpose (like the argument "when humans evolved from monkeys, then why do monkeys still exist?").
@@StudentDad-mc3pu Those appear to be residues of the original organic molecules, not replaced, or only partially replaced, by mineral elements. So a different process from the one talked about in the video.
Trilobite limbs and antennae don't fossilize very often not because of them being "thin", there are plenty of examples of exceptionally preserved trilobites with long and thin spines perfectly preserved but which don't have even the slightest trace of the legs and antennae. This is because only the top part of trilobites had that unique callcite + calcium phosphate makeup that made them fossilize so well, while the underside didn't.
@@RaptorChatter The Ediacaran fossils from Mistaken Point, Newfoundland were preserved in a very similar way to these. The image in my thumbnail is a Charniodiscus from the nearby Bonavista peninsula.
As for paleontology, discovery of soft tissue is always welcome, bringing something surprising to light. No better than stomach contents that can tell part of life style to reconstruct. Curiosity is how that might happen. This is a taphonomic issue rather than a paleontological one though. Thanks for your posting.
Not sure if I asked already but would you ever do videos on Therocephalians like Gorynychus, Trochosaurus, and Moschorhinus? The big ones have always been interesting apex predators to me. Also Theriodonts specifically the Gorgonopsid Rubidgea?
When alive! Trilobites shed by detaching the side lobes of the head, so since these are basically complete, with no broken up skeletons it's likely that they were attached in life, as opposed to this one dying and then only brachiopods finding refuge on it, as opposed to other scavengers feeding and disarticulating the body.
That part was so interesting, like barnacles on modern-day crabs and humpback whales. It's easy to view these animals in isolation and forget little interactions like this when imagining the past.
It gives me a roachy-isopod feeling and it's disgusting 😂 (also I don't feel very well this morning so everything roachy looks extra disgusting now). And the resemblance to triops is amazing.
It's baffling how something that complex just appeared the Cambrian. I've considered that perhaps trilobites existed without hard exoskeletons before the Cambrian but how could a jointed leg even work without a skeleton?
I have to ask, do you think it's possible that the chelicerates are actually descendants of trilobites? Which would make horseshoe crabs extant trilobites? Ty!
@@RaptorChatter I appreciate your response 🙌 I think it's interesting because some early Cambrian trilobites have telson like tails. Also, isn't it true that sanctacaris, which is often considered the most basal of the chelicerates, does not have chelicera itself? I myself believe that there is an argument to be made that all chelicerates are descended from trilobites, and that horseshoe crabs represent an early descendant off from the other extinct trilobite group.
No, it's not that great of preservation. Plus it's important to remember that even in working bodies DNA is made to fall apart, it's how cells divide. So once an animal dies one of the first things to start happening even if fossilized is the DNA breaking apart.
Pompeii’s victims weren’t vaporized. They were indeed killed by a hot pyroclastic flow. The position of many of the bodies indicates it was hot enough to start cooking the bodies, causing the arms to pull into a pugilistic pose and the lips to pull back, but not hot enough to burn the flesh off completely, like in Herculaneum. There were additional falls of lapilli and ash that buried them the rest of the way. The substrate then hardened around them before they decomposed, leaving hollows with skeletons inside. Very few victims were actually preserved that way because the flow cooled a bit on the way through the city, so some bodies were burned away.
Neat! Yeah, I'm not super familiar with the history of Pompeii, so my mistake.
@@RaptorChatter There are some excellent, newer documentaries on Pompeii that go into it, both geologically centered ones and historically centered ones.
Interesting and frightening at the same time.
Cool find; those 3D scans are stunning!
All part of an elaborate hoax to make you think the Earth is round. Biden 2025
"Trilobite lips" is my new insult du jour. 🤣
WOOOAAAHhh Yikes
I'd really like to see someone like you do a side by side comparison of trilobites and modern triops.
Or horseshoe crabs
The trilobites in the thumbnail are so friggin cute
Thanks for this video. Trilobites have fascinated me since I was a child. Its great to see that we are learning such details about them today. Imagine what we'll be able to learn in a hundred years or a thousand years, if we manage to be around that long.
I want to make sure it’s crystal clear for any creationists here, The paper is only saying that soft tissue was fossilized. Which is different from normal fossils, most of the time there is no soft tissue that also is fossilized. Most of the time it’s only the exoskeleton. This time they were able to 3-D image the fossil and found that the soft tissue was also preserved, giving us insight into the anatomy. For more info, check out the abstract of the paper in the description
Your mistake here is thinking Creationists care about the truth or reality. If they did, they wouldn't be creationists. Good work providing context though.
@@TerraStory225MYA when you argue with creationists, they demand proof from you for your beliefs, while they offer no proof at all aside from some thousand year old stories.
And when you give them proof, they deny it or try to understand things wrong on purpose (like the argument "when humans evolved from monkeys, then why do monkeys still exist?").
Same as the "blood vessels" found in dinosaur bones which are, in pact, polymerised collagen.
@@StudentDad-mc3pu Those appear to be residues of the original organic molecules, not replaced, or only partially replaced, by mineral elements. So a different process from the one talked about in the video.
@@edmondantes4338 Yes, I was just citing as an example of creationist deliberately misrepresenting
Super cool find- thank you for telling us about this! Always amazing to see these fantastically preserved fossils!
dang is there a place to go to see those high quality scan models of fossils....like something free??
Maybe try morphosource
Trilobite limbs and antennae don't fossilize very often not because of them being "thin", there are plenty of examples of exceptionally preserved trilobites with long and thin spines perfectly preserved but which don't have even the slightest trace of the legs and antennae.
This is because only the top part of trilobites had that unique callcite + calcium phosphate makeup that made them fossilize so well, while the underside didn't.
I bet those things were good eating! Considering they were prey for so many predators...I stand by my hypothesis.
A lot of things prey on woodlice but tests indicate they taste nasty to humans.
Are you suggesting trilobite sea food?
@@Carlos-bz5ootrilobite scampi!
@@shroomzzz Not sure if possible. People who eat their closest living relatives, horseshoe crabs, say they taste terrible
@@Carlos-bz5oo Guess we will never know. But good point regarding horseshoe crabs.
Excellent as usual.
Great paper and imaging!! Excellent production. Trilobites are my favorite, even over dinosaurs.
Makes one wonder if there are hordes of pre-Cambrian soft-bodied animals, waiting to be discovered in seemingly plain rock.
Could be! Sounds like a great project for a grad student to look even in the Ediacaran where we have some fossils to see if there's more!
@@RaptorChatter The Ediacaran fossils from Mistaken Point, Newfoundland were preserved in a very similar way to these. The image in my thumbnail is a Charniodiscus from the nearby Bonavista peninsula.
Neat! I just got back from Penn Dixie in New York. I found many trilobites, but nothing as good as you show.
Nice, that always seems to be the case, you see photos of the great fossils from an area, and then find ones that aren't as pretty.
T the Rex looks mad. He`s saying `Trilobites? I`m being overlooked by a bug! grrrrrrr
What did one Trilobite say to the other one ? your feet smell.
As for paleontology, discovery of soft tissue is always welcome, bringing something surprising to light. No better than stomach contents that can tell part of life style to reconstruct. Curiosity is how that might happen. This is a taphonomic issue rather than a paleontological one though. Thanks for your posting.
fascinating ... that helped feed my Nerd Need
Not sure if I asked already but would you ever do videos on Therocephalians like Gorynychus, Trochosaurus, and Moschorhinus? The big ones have always been interesting apex predators to me. Also Theriodonts specifically the Gorgonopsid Rubidgea?
Beautiful picures.
Is it known whether the brachiopods attached while the animal was alive, or post mortem?
When alive! Trilobites shed by detaching the side lobes of the head, so since these are basically complete, with no broken up skeletons it's likely that they were attached in life, as opposed to this one dying and then only brachiopods finding refuge on it, as opposed to other scavengers feeding and disarticulating the body.
That part was so interesting, like barnacles on modern-day crabs and humpback whales. It's easy to view these animals in isolation and forget little interactions like this when imagining the past.
Amazing images.
I really hope they find a marrella!!! Like I need to get my PhD to study that group
1:19 "Very simple body plans" of arthropods?? Then vertebrate body plans must be very simple as well! 😜
Also: Subbed! Great discussion
The thumbnail artist is actually Júlia d’Oliviera! Please correct :)
Thank you for the catch! The places I was seeing the image kept citing the lead author, but definitely want to credit the correct artist!
It gives me a roachy-isopod feeling and it's disgusting 😂 (also I don't feel very well this morning so everything roachy looks extra disgusting now).
And the resemblance to triops is amazing.
Looks a bit like a modern day isopod
It's baffling how something that complex just appeared the Cambrian. I've considered that perhaps trilobites existed without hard exoskeletons before the Cambrian but how could a jointed leg even work without a skeleton?
What a discovery wish could see it in person
I have to ask, do you think it's possible that the chelicerates are actually descendants of trilobites? Which would make horseshoe crabs extant trilobites? Ty!
It's possible, but not that likely due to the nature of chelicerae, and how unique they are compared to other feeding structures.
@@RaptorChatter I appreciate your response 🙌 I think it's interesting because some early Cambrian trilobites have telson like tails. Also, isn't it true that sanctacaris, which is often considered the most basal of the chelicerates, does not have chelicera itself? I myself believe that there is an argument to be made that all chelicerates are descended from trilobites, and that horseshoe crabs represent an early descendant off from the other extinct trilobite group.
Kabuto: The chad sigma pokemon
Please lets leave the pop culture references for once
So cool
wow they look like modern horse shoe crabs with more legs
He has a trilobite t-shirt.
Awesome
The third Duplass brother
Fossils are pog!
Great t shirt
Haha the arthropod head problem creeped in
I see the link to marrella with the gills now
Thanks! And yes to your other comments, it really helps resolve a ton of arthropod evolution.
Cool
But is there DNA?
Absolutely not
@FurbyLover2334 What about Fossilized DNA Molocules that can be decoded and recreated?
@@dubuyajay9964 that doesn’t happen, there is no way no matter how well preserved the fossil is that a trilobite fossil could have ancient DNA
No, it's not that great of preservation. Plus it's important to remember that even in working bodies DNA is made to fall apart, it's how cells divide. So once an animal dies one of the first things to start happening even if fossilized is the DNA breaking apart.
@@RaptorChatter Crud. I want my Jurassic Park. 😭
Cockroaches of the sea!
Horseshoe Crabs are Trilobites and I care not what ANYONE says!
CRABS IS BUGS! Vibes.