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Sbarter

Neogene Newbie
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Reply with quote  #1 
Is this a sea urchin?

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brym

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Cambrian Rockhound
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Posts: 217
Reply with quote  #2 
A very nice irregular one.
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Sbarter

Neogene Newbie
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Reply with quote  #3 
Lovely thank you. Was pleasantly suprised when i found it. Not worth millions though? Haha
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Reply with quote  #4 
Micraster preserved in flint
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Reply with quote  #5 
I wouldn't say it's a sea urchin. I don't think sea urchins are old enough to be fossils, fossils have to be about 10750 years or older to properly preserve and become a fossil. My guess would be a sand dollar.
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MicroFossilMan

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Reply with quote  #6 
Sea urchins (aka echinoids) go back many millions of years - and this is one!
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MicroFossilMan

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Reply with quote  #7 
Echinoids go back at least as far as the Ordovician, about 450 million years ago apparently. My oldest one is from the Carboniferous, about 340 MYa. Not sure if they can be found in the Wenlockian (Silurian) around the Wenlock edge area? I do keep meaning to visit there ...
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