An enigmatic molluscan fossil from the Devonian of Germany: scaphopod or cephalopod?

The taxonomic position of a fossil recently found in Givetian strata of the Eifel Mountains, Germany, is discussed. It is a member of the Mollusca, but it is uncertain if it should be assigned to the Cephalopoda or the Scaphopoda. Both possibilities can be supported by the preserved morphology of the specimen. Without additional material the question of higher taxonomic assignment remains unsolved.