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Melissa Underwood
Hi found this yesterday on the beach in North wales.Never found anything before. Click image for larger version - Name: 20180727_194902.jpg, Views: 45, Size: 4.77 MB
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Unregistered
Looks like some sort of singular coral like heliophyllum. Not sure though beacause the condition it’s in.
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Dirty Pete
I'd go for crinoid ossicle and the rock looks suspiciously dolomitic.
Cheers
Pete
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Richard
Hi 
I'm sure I'm not the only one seeing a fish/reptile head?
Good example of a pseudofossil 
Richard
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MicroFossilMan
Whereabouts in North Wales?

Certainly a limestone (or dolomite, there are dolomites near Llandudno) of some sort and possibly a crinoid ossicle - could you take a close-up of the circular thing just right of top-centre.
MFM
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Dirty Pete
The colour and crystalline texture is typical of dolomite, the dolomitization of the original limestone has left a 'fuzzy' crinoid ossicle the CaCO3 having been replaced by CaMg(CO3)2.
Without applying some hot or concentrated HCl acid I'll guess we'll never know for sure.
Pete

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