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Micah

Vertebrae?

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Micah

My brother found this in a creek and the porous texture and divot on one end would seem to point towards a vertebrae of some kind, but I've never found anything like it before. Anyone know what it is/how I could tell for sure if it is a vertebra, or just some kind of coral or cephalopod...

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JohnBrewer

I don't think it's a vert. Can you post pics of the corners i.e. where one flat edge meets another and several other angles? 

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fifbrindacier

Hi, it's nor a coral nor a cephalopod. Could you tell us in what creek you found it ? Nebraska is a little too wide.;)

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ynot

Not seeing bone either, maybe a burrow cast.

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Micah

It's a little tributary of the Long Branch in SE Nebraska, it's a mix of glacial gravel and limestone from various periods.

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Micah
16 hours ago, ynot said:

Not seeing bone either, mabe a burrow cast.

I thought that at first, but the texture is more that of bone than the world insides of a burrow.

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ynot
1 hour ago, Micah said:

I thought that at first, but the texture is more that of bone than the world insides of a burrow.

I do not see any bone "texture" in this piece.

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Rockwood

Burrows tend to be filled with more mobile and soluble sediment. The small void quite likely is a fragmentary fossil of something that was engulfed by the process. The fact that they are a cavity also helps keep them from being compacted to the same degree as their surroundings. I think the combination is what gives them this porous look. It is a little too disorganized for bone. 

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Micah

Okay thank you!

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