Invalid names: Pseudosageceras clavisellatum Diener 1913 [synonym], Pseudosageceras curvatum Chao 1959 [synonym], Pseudosageceras drinense Arthaber 1911 [synonym], Pseudosageceras intermontanum Hyatt and Smith 1905 [synonym], Pseudosageceras longilobatum Kiparisova 1954 [synonym], Pseudosageceras paomochungenense Tien 1933 [synonym], Pseudosageceras schamarense Kiparisova 1961 [synonym], Pseudosageceras tsotengense Chao 1959 [synonym]