any ideas found in illinois field

[mainejman]

Don't know what it is maybe a dino egg?

 

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[Age_old]

It doesn't look like dino egg to me. I don't think that Illinois even has any formations that produce any dinosaur eggs.

To me, it looks like a stone concretion. Maybe this will help: http://www.bcmnh.org/naturalhistory.html

Just my 2 cent.

 

[GatorBoy]

Or maybey a geode. Or fossil avacodo..kidding

 

[PennyG]

Don't know what it is maybe a dino egg?

Someone on a more recent post has a very similar item.
I believe it's under the fossil section.

 

[PaDirtDigger]

It is indeed a Classic Concretion... Its pretty neat when the middles fall out like that. still neat to keep!!

 

[Mrdigz]

MRants had posted questions about the same kind of stone before. Maybe send a message and you guys can compare notes!! Really cool though!!