Crussoliceras sp. ? (Enay 1959)

This is not a Crussoliceras but an Orthosphinctes

That's what I thought at first as well, but Victor Schlampp, our German upper Jurassic (Malm) expert, corrected my diagnosis since it occurred together with the newly posted Streblites. Orthosphinctes can apparently no longer be found in that younger layer. He's not quite sure himself about the id, which is why I have a question mark on it, but he has ruled out Orthosphinctes. It's so confusing how the forms repeat themselves over time!