1963  Beyrichoceras araneum Nicolaus: 118, pl.1 fig.15,16,
           pl.5 fig.3-5.
     1963  Girtyoceras bindemanni Nicolaus: 124, pl.1 fig.9-13,
           pl.2 fig.6, pl.6 fig.3-6.
     1990  Cowdaleoceras araneum.-Korn: 22, pl.3 fig.1-8,
           textfig.4.