1971  Eumorphocers (Eumorphoceras) bisulcatum.-Ruzhentsev &
           Bogoslovskaya: pl.7 fig.8,9, pl.8 fig.1.

     2000  Titus, p. 22: Eumorphoceras bisulcatum of Ruzhentsev & Bogoslovskaia, 1971, p.184, only specimen PIN 455/36865 pl.7 fig.8 belongs to bisulcatum because of high rib counts, narrow umbilicus, lack of constrictions, and persistence of ribs to the lingular groove.