Deutsch: Athyris concentrica, ein Armfüsser, 22 mm entlang der Achse, Ansicht von der Öffnungsseite. Fundstück aus der Prümer Kalkmulde, frühes Mitteldevon (Eifelium)
English: A Athyris concentricalampshell, 22mm along the axis, view of the opening, found near Prüm, Germany, from the early Middle Devonian (Eifelian)
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.