Gastropods and Scaphopods

Lang de

Gastropods and scaphopods have aragonitic shells and are in the Muschelkalk generally preserved as internal moulds that do not show any shell ornamentations. However, if their instable nacreous conchs are replaced by more stable minerals, it becomes clear how diverse gastropod faunas can be. Such ‘Ersatzschalenfaunen‘, with the original aragonitic shells replaced by calcite, dolomite, or silica admit the best impression of the real Muschekalk faunal diversity.