The Paleontology Thread
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Re: The Paleontology Thread
http://www.ctys.com.ar/index.php?idPage ... iculo=3738
Evidence of what appears to be further evolution on the ancestors of pterosaurs'.
Evidence of what appears to be further evolution on the ancestors of pterosaurs'.
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Re: The Paleontology Thread
It seems archosaur diversification in the Triassic was much quicker than many might have expected. At this point with how prevalent endothermic metabolism no doubt was, and how bird feathers (and presumably pterosaur pycnofibres) are genetically homologous to crocodilian scutes; I won't be shocked at all if we find out fuzzy bodies were right at the base of the archosaur family tree. Plenty of Triassic crocodilian relation were just as active as plenty of dinosaurs and could be both small and large; so it doesn't seem like there's much stopping it.
I actually work in a museum and would be all too happy to post some pictures of my work place. I'm an educator at the Museum of Dinosaurs and Ancient Cultures so I have plenty of time to photograph the exhibits. Here is the Cretaceous hall with our Giganotosaurus skeleton cast.
Also
https://twitter.com/tarbtano/status/1315726823565783040
Here is a size comparison of a Haast's Eagle's foot with a Velociraptor skull cast.
I actually work in a museum and would be all too happy to post some pictures of my work place. I'm an educator at the Museum of Dinosaurs and Ancient Cultures so I have plenty of time to photograph the exhibits. Here is the Cretaceous hall with our Giganotosaurus skeleton cast.
Also
https://twitter.com/tarbtano/status/1315726823565783040
Here is a size comparison of a Haast's Eagle's foot with a Velociraptor skull cast.
Last edited by Desghidorah on Tue Dec 15, 2020 9:32 pm, edited 1 time in total.
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Re: The Paleontology Thread
Last edited by SoggyNoodles2016 on Wed Dec 16, 2020 10:18 am, edited 3 times in total.
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Re: The Paleontology Thread
Just as display? You sure they didn't use it as a stabbing device?
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Re: The Paleontology Thread
...I mean, not only are they likely not built strong enough for that (they're made of keratin and are extremely thin) but what reason would you put a stabbing device on your back?
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Re: The Paleontology Thread
While I do think it's display mostly, there are some examples in nature of dorsum stabbing structures. Notice how most antelope have rear facing horns? While these are chiefly used for display as well as competitions between themselves, they do help to try and stab at their primary predators, large felines; which tend to try and get on their back.SoggyNoodles2016 wrote: ↑Wed Dec 16, 2020 10:34 am...I mean, not only are they likely not built strong enough for that (they're made of keratin and are extremely thin) but what reason would you put a stabbing device on your back?
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Re: The Paleontology Thread
Yeah, that occurred to me but again, they seem much more like advanced display feathers in structure then any kind of horn. At best, I'd assume maybe it could be used to make it look bigger and intimidate the odd pterosaurDesghidorah wrote: ↑Wed Dec 16, 2020 12:19 pmWhile I do think it's display mostly, there are some examples in nature of dorsum stabbing structures. Notice how most antelope have rear facing horns? While these are chiefly used for display as well as competitions between themselves, they do help to try and stab at their primary predators, large felines; which tend to try and get on their back.SoggyNoodles2016 wrote: ↑Wed Dec 16, 2020 10:34 am...I mean, not only are they likely not built strong enough for that (they're made of keratin and are extremely thin) but what reason would you put a stabbing device on your back?
Last edited by SoggyNoodles2016 on Wed Dec 16, 2020 1:41 pm, edited 1 time in total.
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Re: The Paleontology Thread
I'm imagining that httyd meme with that contextSoggyNoodles2016 wrote: ↑Wed Dec 16, 2020 1:40 pmYeah, that occurred to me but again, they seem much more like advanced display feathers in structure then any kind of horn. At best, I'd assume maybe it could be used to make it look bigger and intimidate the odd pterosaurDesghidorah wrote: ↑Wed Dec 16, 2020 12:19 pmWhile I do think it's display mostly, there are some examples in nature of dorsum stabbing structures. Notice how most antelope have rear facing horns? While these are chiefly used for display as well as competitions between themselves, they do help to try and stab at their primary predators, large felines; which tend to try and get on their back.SoggyNoodles2016 wrote: ↑Wed Dec 16, 2020 10:34 am
...I mean, not only are they likely not built strong enough for that (they're made of keratin and are extremely thin) but what reason would you put a stabbing device on your back?
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Re: The Paleontology Thread
I haven't seen the paper or really stared at the fossils yet, but supposing these pokers did have some sort of defensive function, would porcupine quills or poison-tipped spines be a possibility? Maybe the things could have been detachable and/or had a channel to draw poison from a gland at the shoulders down to the tips when at rest, to be raised when in danger.SoggyNoodles2016 wrote: ↑Wed Dec 16, 2020 1:40 pmYeah, that occurred to me but again, they seem much more like advanced display feathers in structure then any kind of horn. At best, I'd assume maybe it could be used to make it look bigger and intimidate the odd pterosaurDesghidorah wrote: ↑Wed Dec 16, 2020 12:19 pmWhile I do think it's display mostly, there are some examples in nature of dorsum stabbing structures. Notice how most antelope have rear facing horns? While these are chiefly used for display as well as competitions between themselves, they do help to try and stab at their primary predators, large felines; which tend to try and get on their back.SoggyNoodles2016 wrote: ↑Wed Dec 16, 2020 10:34 am ...I mean, not only are they likely not built strong enough for that (they're made of keratin and are extremely thin) but what reason would you put a stabbing device on your back?
Presuming they weren't defensive, that theoretical channel could instead serve as a wick for scent glands, like a living aroma diffuser stick it could wave around to attract mates.
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Re: The Paleontology Thread
I still think this is a Psittacosaurus situation. These all seem like plausible uses but based on how sparse they are and the make up says its just display.
In more depressing news, this species is now part of a controversy. The German scientists who named and studied the fossil reportedly illegally smuggled it out of Brazil, and have acted disparingly about actually studying it side by side with the Brazilian authorities. So, still cool but definitely a little less interesting now
In more depressing news, this species is now part of a controversy. The German scientists who named and studied the fossil reportedly illegally smuggled it out of Brazil, and have acted disparingly about actually studying it side by side with the Brazilian authorities. So, still cool but definitely a little less interesting now
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Re: The Paleontology Thread
They're so... lumpy
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Re: The Paleontology Thread
McHenry puts the animal at about 11.7 meters and 15 tons. Here’s another accurate measurement. https://www.deviantart.com/randomdinos/ ... -630335385Noble Saber wrote: ↑Thu Dec 10, 2020 7:47 pmAdam Smith ('Dr. Admin,' as we at The Dinosaur Toy Forums refer to him) has a page on his website about the Aramberri pliosaur. He has given it an estimated length of 15-18 meters. Not too much you can find about the Monster of Aramberri, but Dr. Admin is THE plesiosaur paleontologist so his website is legit.AllosaurHell wrote: ↑Thu Dec 10, 2020 5:27 pmAll that I really know is that the fossils that were thought to belong to a large Liopleurodon were this thing all along, but I don't know if any studies are publicly available.Manuelito Canelito wrote: ↑Sat Dec 05, 2020 9:15 am
Have there been any studies done to the Monster? I remember finding it sourced at the Internet many years, but I just can't find any studies done, especially about it's size
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Re: The Paleontology Thread
^
^ always nice to see. big fan of Charles knight as well
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Re: The Paleontology Thread
Dire Wolves no longer considered a member of the genus Canis!
https://www.scientificamerican.com/arti ... es-reveal/
https://www.scientificamerican.com/arti ... es-reveal/
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Re: The Paleontology Thread
This is bigNSZ wrote: ↑Wed Jan 13, 2021 9:00 am Dire Wolves no longer considered a member of the genus Canis!
https://www.scientificamerican.com/arti ... es-reveal/
This basically will rewrite not only their entire life story, but also the cause of their extinction and how they interacted with modern wolves (which may have been the third factor alongside humans and the climate to take them out?)
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Re: The Paleontology Thread
Last edited by SoggyNoodles2016 on Fri Feb 19, 2021 7:07 pm, edited 1 time in total.
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Re: The Paleontology Thread
Huh. Well can't say i was expecting to learn about a new icthyosaur today.
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- LegendZilla
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Re: The Paleontology Thread
Anyone think it's possible that one day they'll find mummified remains of a ground sloth, or any other extinct native South American creature frozen in a Andean glacier?
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Re: The Paleontology Thread
It's certainly possible. They only went extinct around 10,500 years ago. That said, there is significantly less of their range with ice still present, unlike mammoths. So we'd have to be really lucky.LegendZilla wrote: ↑Fri Feb 19, 2021 7:30 pm Anyone think it's possible that one day they'll find mummified remains of a ground sloth, or any other extinct native South American creature frozen in a Andean glacier?
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