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Are these some type of coral or sponge fossils


Rareshine5

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Hi I found these on our farm in Central Missouri [Osage County].. 

I've looked in Missouri fossil references and on line - bt haven't found something similar...

Can anyone tell me what they are?. Thank you for looking!IMG_0419.JPG

IMG_0421.JPG

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Hello,

 

These actually look like mudcracks, or dessication cracks, to me. 

Regards,

  • I found this Informative 2

    Tim    -  VETERAN SHALE SPLITTER

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Neither coral, nor sponge, I'm afraid. Tim is right on these ones.

An interesting similarity of the patterns I've discovered (circled with red) could be seen in these pictures (tentatively I would call it "Glyptodon scute pattern", although it has nothing to do with that):

 

1.jpgpaleo_mudcracks 2.jpg

 

Ancient mudcracks in plan view, Monroe County, IN. Photo courtesy of Dr. Frederick Soster. Here

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nice mud cracks

"Absence of evidence is not evidence of absence"_ Carl Sagen

No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go.

" I think, therefore I collect fossils." _ Me

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes

"can't we all just get along?" Jack Nicholson from Mars Attacks

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Thank you, I thought they looked like mud cracks as well, but seemed much smaller than what I am used to seeing.. 

I was unable to find "fossilized dirt cracks" so I thought perhaps it was a coral or sponge.. I appreciate your help (and the Monroe County IN aerial photo).

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