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Urchin?

Barasingha

By Barasingha
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Barasingha Member

Barasingha

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Sorry about the poor quality first picture but I am not able to currently take another pic.  This was found in a Miocene area.  Can you tell me if this is an urchin or something else?  Thanks.

IMG_1187.JPG

IMG_1188.JPG

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FossilDAWG Regular Member

FossilDAWG

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That is not an urchin, it lacks the plate structure, the ambulacra, and any sign of a mouth or anus.  I think it is a disc that goes between vertebrae.  Such discs, from cetaceans, are not uncommon in some marine formations such as the Miocene formations around the Chesapeake Bay area.

 

Don

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Fossildude19 Regular Member

Fossildude19

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I agree with Don - vertebral epiphysis. 

Regards,

 

    Tim    -  VETERAN SHALE SPLITTER

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abyssunder Regular Member

abyssunder

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Epiphysis for sure, I agree with the others. Here is for example a vertebral epiphysis from a whale to compare with:

 

IMG_1187.JPG.3af779329f3952bf86592d76ea40e416.JPG2008-09-23d.jpg

 

Also, nice epiphysis here, showing both sides:

 

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

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