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Is This A Fossilized Plant?


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I’m wondering if this is some type of fossilized plant fragment? If not, can anyone tell me what it might be? (Tuscumbia Limestone/Mississippian)

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Although relatively small, these objects are reminiscent of Archimedes (bryozoan) in long section showing the whorls spiraling around the screw-like axis.

20190627_000110.thumb.jpg.ed6ba6bfe2986f03e12c76eadf8a6161.jpg

 

This one looks like part of a horn coral (rugose coral)

Screenshot_20190627-000626_Chrome.thumb.jpg.9f05aa4eb7ed355a198b0fa96bd23395.jpg

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2 hours ago, Peat Burns said:

Although relatively small, these objects are reminiscent of Archimedes (bryozoan) in long section showing the whorls spiraling around the screw-like axis.

Ah, I can definitely see that now. Thank you so much! :)

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6 minutes ago, Rockin' Ric said:

Looks like a portion of Conularia? The ribbing is chevron shaped...

I just googled Conulariida. (?)  It does look quite similar. Thank you, Ricky! :)

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On 6/27/2019 at 12:04 AM, Peat Burns said:

This one looks like part of a horn coral (rugose coral)

Screenshot_20190627-000626_Chrome.thumb.jpg.9f05aa4eb7ed355a198b0fa96bd23395.jpg

The sixth photo shows some interesting internal structures in cross section....

5d1633a834e79_Alabamaunknown.jpg.f5c167e211b4b1eb1f81a22d9887ead6.jpg

What do you think of the upper ring of circles/ovoids---is that diagnostic of any of the critters proposed thus far? Do you suppose these 

two areas I've circled are of the same critter? 

 

Regards, Chris 

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