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ID request for fossil found near Alton Illinois along the River Road (Hwy 100)


JamesMcD

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Hello all,

Last Saturday I took my 7-year-old boy on a fossil hunt along the River Road (Hwy 100), NW of Alton IL.

 

He found the item in the attached images somewhere near here:

 

Google Map Location

 

The longest dimension of the smooth "bit of whatever" with the porous / speckled texture is about 9 cm. I've tried various keyword combinations with google images, and haven't been able to find anything similar. I imagine it's something common and I'm just not describing it correctly. Does anyone recognize what this is?

 

Thank you very much for any help. My kid will be very excited to find out what this is.

 

fossil1.jpg.c73dab7d334291d48874d1152bb9cc61.jpgfossil2.jpg.3f501d04a85c476540ef1f0f51b5396b.jpgfossil3.jpg.a4593c1db8be9c993bb2f1b0ce8ee4fb.jpg

 

James

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I believe Caldigger has it right.  A nice specimen indeed with more than one family of bryozoans represented on the same specimen.

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