1974  Simmonoceras atratum Kuzina: 30, pl.4 fig.3, text-fig.5v,g.
     1980  Simmonoceras atratum.-Kuzina: 86, pl.8 fig.7, text-fig.29v,g.

Holotype (only specimen known) PIN 2775/356.

Fig. see TAX280 C, D (sutures).