
Ptychoceratodus sp. cf medelungi
Middle Triassic, Lower Muschelkalk (anisian), Upper Silesia, Poland
An extremely rare specimen from the Lower Muschelkalk. A dental plate of a lungfish (Dipnoi).
Ptychoceratodus is an extinct genus of lungfish that occurred from the Early Triassic to the Middle Jurassic. The fossil record usualy preserves dental plates (the fish had two pairs of them) and sometimes skull elements.
The specimen is quite heavily eroded (white elements), but retains its characteristic shape (acute, prominent ridges) and surface texture.


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