Revision of Tropidemys seebachi Portis, 1878 (Testudines: Eucryptodira) from the Kimmeridgian (Late Jurassic) of Hanover (Northwestern Germany)

The revision and new interpretation of the quite recently re-discovered type material of Tropidemys seebachi Portis, 1878 shows its taxonomic independence. The shell is covered by borings of presumed marine “worms” similar to the Recent Osedax for which the new ichnotaxon Osedacoides jurassicus n. ichnogen. n. ichnosp. is introduced