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Conularid, Gastropod, Juvenile Shark or Fish Spine, or something else?


Cassandra Tiensivu

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So many different ideas have been tossed out for this piece now. I thought perhaps some folks who aren’t in the Facebook group I regularly post in might have some clue to be able to narrow this down. 
 

The tan-colored half seems to be two layers of diagonal lines stacked on top of one another in a crisscross pattern, creating the holes in between. 
 

This is another Mississippian Coldwater Shale packstone from South Haven, MI.  

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Edited by Cassandra Tiensivu
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Part counter part ?

That would look like two distinct layers of, bryozoans I think.

Yea. Bryozoan and mold there of. 

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4 minutes ago, Rockwood said:

Part counter part ?

That would look like two distinct layers of, bryozoans I think.

Yea. Bryozoan and mold there of. 


That was my initial speculation, but everyone else went off in other directions. And yeah, one piece was on one side of the split, and the other piece is on the other side. 

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Bryozoan for me. 

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    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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