Paramoudras, paramoudra flints, pot stones or potstones are flint nodules found mainly in parts of north-west Europe: Norfolk (United Kingdom), Ireland, Denmark, Spain and Germany.

The term paramoudras was first used by Buckland in 1817 and is a corruption of a Gaelic name, probably padhramoudras "ugly Paddies" or peura muireach "sea pears".

[1] Pot stones are flint nodules with a hollow center and have the appearance of a doughnut (torus).

These flints are trace fossils of the burrows of an organism otherwise unknown except for these relics sometimes referred to as Bathicnus paramoudrae.

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