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mtbjosh

Fossilized egg?

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mtbjosh

I found these last week in Texas about 60 miles south east of Amarillo. 2 are nearly identical in size. Do you all think these are fossilized eggs? Appreciate the help! 

IMG_0678.JPG

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SailingAlongToo

To me, they look geologic rather than biologic.

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FossilsAnonymous

+1 for geologic

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mtbjosh
32 minutes ago, Tidgy's Dad said:

Can't see any eggshell texture.

Interesting concretions, I think. :)

Little better closeup. If not eggs, any thought as to what they would be? It's just odd they were both in the same spot and almost identical in size! 

IMG_0679.JPG

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Tidgy's Dad
20 minutes ago, mtbjosh said:

Little better closeup. If not eggs, any thought as to what they would be? It's just odd they were both in the same spot and almost identical in size! 

Concretions. 

They often occur this shape and in numbers.

See : https://en.wikipedia.org/wiki/Concretion

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RJB

Yep, some kind of concretions.   There could be a fossil of some kind inside, but not usually.  Good luck.

 

RB

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CBchiefski
On 1/13/2019 at 2:05 PM, mtbjosh said:

I found these last week in Texas about 60 miles south east of Amarillo. 2 are nearly identical in size. Do you all think these are fossilized eggs? Appreciate the help! 

 

I have to agree with the others, these are most likely concretions. There is a small possibility they might be pupa cases but that is unlikely.  @abyssunder is spot on when it comes to eggs, and indeed a cross section would allow for a clear view of any eggshell, though I suspect none is present.

For reference, here are a few fossilized pupa cases and cocoons:
 

Fossil-Cocoons-Montana1.jpg

Edited by CBchiefski
Typo

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