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crinoids - ossicles


Gen. et sp. indet.

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Ordovician or Silurian erratic boulder from Poland. Sorry for poor quality photos - I'm not able to get better for now. What are these 8-shaped lumen ossicles? Also, can you spot fragments of calyx?

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1 hour ago, Gen. et sp. indet. said:

I'm not able to get better

Nice hash piece. you will get better picture if you place  the fossil on a flat surface and are not holding it.

 

 

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Rhizoids / rootlets may have irregular "lumen" in transerse section.

 

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