1889  Dimorphoceras Brancoi Holzapfel: 38, pl.3 fig.11,
      -----    Dimorphoceras Gilbertsoni.-Holzapfel, p.38, pl.3  fig.12.
     1894  Dimorphoceras Gilbertsoni.-Haug: 397, textfig.7.    
     1898  Dimorphoceras Holzapfeli Haug: 109,   
      -----    Dimorphoceras Brancoi.-Haug, p.109.
     1925  Dimorphoceras Brancoi.-H.Schmidt: 600, pl.22 fig.18 [with description and synonymy].