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Re: Any one up for fossil ID?
> Serious: probably something due to erosion. I may be wrong (after all I am
> looking only to the photos) but don't think it is a fossil. Look at the
> "base" with inserts of different lithology.
Maybe (low-quality) natural casts of fossils? (Is there the word Steinkern
in English usage?)
Judging from its surface, the one on the left looks somewhat like an eroded
conglomerate, but its shape is probably difficult to produce that way.