genus F Korn & Hairapetian

New genus F Korn & Hairapetian (in press) sp. Fig. 51; Table 31 Material examined IRAN – West Azerbaijan • 1 specimen; Aras Valley; Paratirolites Limestone of the Ali Bashi Formation (late Changhsingian); 2011; Korn et al. leg.; illustrated in Fig. 51; MB.C.32097. Description Specimen MB.C.32097 is the fragment of a half whorl, which belongs entirely to the body chamber (Fig. 51A). The conch has a diameter of about 53 mm and is discoidal and involute (ww/dm=0.45; uw/ dm =0.06). Flanks and venters are rounded. The surface of the internal mould appears to be completely smooth. Remarks The single specimen from the Paratirolites Limestone is too poorly preserved to be assigned to a specific species.