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Is this a crinoid stem?


Rosemary

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Looks like an oddly weathered tabulate coral to me. 3584725658_8934d8729a_z.jpg?zz=1

Each dot is 50,000,000 years:

Hadean............Archean..............................Proterozoic.......................................Phanerozoic...........

                                                                                                                    Paleo......Meso....Ceno..

                                                                                                           Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here

Doesn't time just fly by?

 

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