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encrusted bryozoans and embedded items


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Ramona

My son brought me a rock from Pulaski, TN, and I am trying to study it and identify the various elements in it. From what I can tell (and from what I have learned here in the past) I believe it is mostly made up of encrusted bryozoans, although there is something different about them.  There are tiny filament like "sticks" that I have not seen before. Is that perhaps just a type of bryozoan that I am unfamiliar with (quite possible!). There are also a number of embedded items in the rock.  The third photo here shows two of them, side by side. I remember from previous answers that I have gotten here that sometimes you see items like this that have "silicalized" (did I get the right word) inside of a rock? 

Input appreciated! 
Ramona

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This is another item that is embedded in the rock and it is surrounded by softer dirt, so I have dug out around it some.  I am afraid to dig much more, as I don't want to damage it. Third photo is yet another, similar, embedded item - they all seem to be the same type of thing.

Thanks!
Ramona

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Fossildude19

I'm seeing limestone and geodes,. but no fossils.  :unsure: 

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Tidgy's Dad

I see quartz and possibly mica and calcite. 

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Thomas.Dodson

I agree with the others. You're correct that the cavities are silicified (quartz in this case) but they're not fossils. The filaments could be some form of mineral branching like calcite but also not fossils. The possible exception is the round object in the bottom left corner of picture #2 which could possibly be a crinoid columnal.

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Ramona

OK, great!  Thanks, guys! I appreciate the input, as always!

Blessings

Ramona

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