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Ordovician echinoderm....?


mbarco

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Upper ordovician, Italy. 

Decalcified specimen (it means that you see the mould).

Scale bar 5mm.

These are 3 different specimens, but I guess of the same species.

At first thought they seem a blastoid oral area (never reported blastoids from this formation). But, as 2 of 3 of these specimens are inscribed in a circle, I was thinking about a particular echinoderm stem mould.

IMG_20211125_170540.jpg

3.jpg

2.jpg

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the 5 fold symmetry suggests that is what you have found, but this is way outside my comfort zone.  hopefully more knowledgeable people will respond.

 

 

any chance of making a pvs mold of your fossil.  Maybe your dentist will help you with this.  I would like to see what those indents next to it show for shape and texture.  

 

I am unfamilar with your collecting location.  What has been recorded for that site?

 

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