Biostratigraphy of the Aalener Flöz (“Oberes Flöz”) at the type locality of the Eisensandstein Formation (Upper Aalenian, Middle Jurassic) at Aalen-Wasseralfingen (E Swabian Alb, SW Germany)

Abstract

The biostratigraphical position of the Aalener Flöz (= Oberes Flöz) within the Eisensandstein Formation of Aalen-Wasseralfingen (E Swabian Alb) is discussed and revised. It lies in the herein newly introduced falcifera biohorizon of the Gigantea Subzone (Upper Aalenian, Bradfordensis Zone) and not in the Bradfordensis Subzone as stated in literature. With the exception of the Concavum Zone, all other zones and subzones of the Upper Aalenian can be identified in the Eisensandstein Formation at Aalen-Wasseralfingen.