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PrairieRox

What the heck did I find?

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PrairieRox

Found this on the side slope of an old road cut near the Cheyenne River in western South Dakota this morning...my first thought was turtle but after looking at fossilized turtle pics on line I don't think so. Could it be a dinosaur egg? It is about 18" long by 12" wide. When I grasped it and pulled on it it started separating into chunks as you can see in the second photo, and what looks like it could be the outer shell started separating from the outer portion (some pieces can be seen in the dirt to the right of the fossil(?) in question. Any help with ID would be greatly appreciated. Thanks!

0731171234c.jpg

0731171228.jpg

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WhodamanHD

It's a concretion, maybe a septarian nodule. Sorry, not a fossil.

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WhodamanHD

Eggs will have a bumpy outer layer btw.

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WhodamanHD
13 minutes ago, PrairieRox said:

Thanks a bunch!

Your welcome a bushel:P

always happy to help, keep looking round there, could get an ammonite!

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abyssunder

That's a septarian type concretion/nodule. Nice one. :)

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