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(Physics World)   CSI: Chicxulub   (physicsworld.com) divider line
    More: Cool, Cretaceous-Tertiary extinction event, Iridium, Earth, abundance of the rare element iridium, Dinosaur, Extinction event, Sedimentary rock, Chicxulub crater  
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549 clicks; posted to STEM » on 26 Feb 2021 at 8:31 AM (6 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



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2021-02-26 8:19:32 AM  
I've always wondered what America would have looked like without the 'foot' that Chicxulub left behind.
 
2021-02-26 8:36:06 AM  

uttertosh: I've always wondered what America would have looked like without the 'foot' that Chicxulub left behind.


More dinosaury for sure.
 
2021-02-26 9:06:37 AM  
Chicxulub is fun to say.   I like the phonology of Nahuatl and related languages.  Same with Inuit.  I have a couple of friends who fly ski-equipped C-130s up to Kangerlussuaq in Greenland during the summer.  Kangerlussuaq is also fun to say, almost as fun as its previous name, Sonderstromfjord.

Back on topic, though, I thought that this was pretty much settled.

I was kind of hoping this was an update on this:

https://en.wikipedia.org/wiki/Tanis_(​f​ossil_site)

For the TL:DR crowd, the Tanis site *ISN'T* where the lost Ark of the Covenant was buried, although this one might be as important.   This Tanis appears to have captured the day the non-avian dinosaurs died, because of the unique way the fossils were preserved.   It's still being studied, but if it checks out, it's a window on the Hell that the Chicxulub (wheee!) impactor visited upon Earth.
 
2021-02-26 9:41:57 AM  

dittybopper: the Hell that the Chicxulub (wheee!) impactor visited upon Earth.


The Chicxulub Impactor sounds like it could be a Bad Dragon dildo.
 
2021-02-26 12:39:13 PM  
TFA headline: Iridium in undersea crater confirms asteroid wiped out the dinosaurs

No it doesn't and the research paper doesn't claim that.

All it gives is additional evidence that the worldwide Iridium anomaly at the "K-T" extinction boundary was caused by the Chicxulub impact. Whether that impact caused or contributed to the extinction is a whole nother kettle of science.

> mass extinction of 75% of species on Earth including the non-flying dinosaurs.

I like to state this as "all dinosaurs except the toothless birds."

The bird fossil record is very spotty. We don't know what species survived and whether they could fly (and if the number was so small it is just a coincidence they all had beaks.)

Only 2 or 3 infraclasses of birds survived.

https://en.wikipedia.org/wiki/Palaeog​n​athae - ostriches and other mostly flightless birds
https://en.wikipedia.org/wiki/Neognat​h​ae - most other birds.

The hoatzin is a peculiar bird that eats leaves and has claws on its wings that is hard to classify and might descend from another survivor
.https://en.wikipedia.org/wiki/Hoatzi​n
 
2021-02-26 1:11:41 PM  

HairBolus: I like to state this as "all dinosaurs except the toothless birds."



The Toothless Birds is my geriatric English "The GoGo's" tribute band.
 
2021-02-26 1:43:32 PM  

dittybopper: HairBolus: I like to state this as "all dinosaurs except the toothless birds."


The Toothless Birds is my geriatric English "The GoGo's" tribute band.


New keyboard, monitor, mouse and coffee!

/good one, man! XD
 
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