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Some acquisition of Tuscon this year


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Some nice pyritized specimens acquired in Tucson. 

 

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Caryosyntrips like frontal appendage. (2cm) 

 

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Another raptor claw from unknown arthropod (1cm) 

 

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Classic Beecher's Trilobite Bed mortality plate

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The Amateur Paleontologist

Wow! Those are some really cool fossils :) 

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  Very cool fossils!!!

 

RB

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Beautiful and revealing little jewels!

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Nice pickups lots of variety 

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For a couple of years I have been looking for articles/ info on pyritization of fossils with the goal of putting together a talk for a fossil club. I don't have the chemical and biological background so am trying to absorb and gain a basic understanding of how pyrite thru diagensis "preserves" the soft tissue of various animals and plants. The Beecher Trilobite beds are amazing. I did get to collect briefly in Alden NY and have some brachiopods from the Silica Formation in Ohio(understand these are not soft tissue preservation). If anyone has info on the process or outstanding examples, I would appreciate letting me know. Thanks

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5 hours ago, fossilnut said:

For a couple of years I have been looking for articles/ info on pyritization of fossils with the goal of putting together a talk for a fossil club. I don't have the chemical and biological background so am trying to absorb and gain a basic understanding of how pyrite thru diagensis "preserves" the soft tissue of various animals and plants. The Beecher Trilobite beds are amazing. I did get to collect briefly in Alden NY and have some brachiopods from the Silica Formation in Ohio(understand these are not soft tissue preservation). If anyone has info on the process or outstanding examples, I would appreciate letting me know. Thanks

check on this paper: Beyond Beecher's Trilobite Bed: Widespread pyritization of soft tissues in the Late Ordovician Taconic foreland basin

g30177a.1.pdf

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Tidgy's Dad

Amazing appendages on those trilobites. 

Despite covering the trilobites a little, I rather think the bryozoa add to the piece as well. :)

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31 minutes ago, Tidgy's Dad said:

Amazing appendages on those trilobites. 

Despite covering the trilobites a little, I rather think the bryozoa add to the piece as well. :)

I think those are burrows.

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Tidgy's Dad
1 hour ago, Ludwigia said:

I think those are burrows.

You're probably correct, but i still rather like them. :)

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Just now, Tidgy's Dad said:

You're probably correct, but i still rather like them. :)

Me too.

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@YXWYXThanks for the article link. I appreciate it. The Beecher material is super. Congratulations.

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1 hour ago, fossilnut said:

@YXWYXThanks for the article link. I appreciate it. The Beecher material is super. Congratulations.

No problem. Thank you ! 

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