Acilia basistriata (FOSSIL) A. Nützel & al., 2012 † Iran, Esfahan, Ardestan
Acilia imperatii (FOSSIL) (Stoppani, 1858 †)
Ptychostoma mojsisovicsi (FOSSIL) (E.A.L. Kittl, 1892 †) Italy, Trentino-Alto Adige, Bolzano
Ptychostoma ornata (FOSSIL) A. Nützel & Erwin, 2001 † USA, Idaho
Prostylifer paludinaris (FOSSIL) (Münster, 1841 †) China, Yunnan, Dali Bai
Ptychostoma pleurotomoides (FOSSIL) (Wissmann, 1841 †) Italy, Trentino-Alto Adige, Bolzano
Ptychostoma stachei (FOSSIL) (E.A.L. Kittl, 1892 †) Italy, Trentino-Alto Adige, Bolzano
Ptychostoma waehneri (FOSSIL) (E.A.L. Kittl, 1892 †) Italy, Trentino-Alto Adige, Bolzano