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What is the oldest identifiable organic material original to the organism?


joshuavise

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Just a silly curious question, but I thought I'd throw it out there.

 

What is the oldest identifiable organic material that could be found?  In case this is not phrased correctly, what I mean is "What is the oldest bone we could expect to find that would actually be bone, and not a mineral replacement?"  

 

I am aware that Mary Schweitzer may have found blood vessels and osteocytes in a T-rex limb.  Are there any other things that may have been preserved in their original state as long, or longer than, this one?

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3 hours ago, joshuavise said:

oldest identifiable organic material

With some original organic molecules still there?
I am throwing in bacterial spores in Permian salt.

Franz Bernhard

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