2x Staufenia (revised)

I thought I'd got S,opalinoides (8cm.) at the front and the majority of S.sinon (12cm.) hanging out back. From the murchisonae zone in Wutach valley. Upper Aalenian. That's what I named them up until now, but although these were assigned to the genus Staufenia by Rieber in 1963, Dietze, Rieber etal have revised the genera in December 2014 to Ancolioceras opalinoides and Costileioceras sinon.