An ancient gastropod?
by Saša Iskrić Smrekar
This is a coil-shaped fossil, about 3 - 4 cm in diameter; rock of unknown provenance (not found in situ), probably from a limestone quarry in central Slovenia that produced railway track ballast (the geo map tells that the limestone from this quarry is jurrasic). Other similarly shaped remains are on the rock.
What could it be?
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