1962  Trizonoceas subdivisum Kullmann: 287, pl.2 fig.1, textfig.4.
     1988  Trizonoceras subdivisum.-Manger: 31, text-fig.1E.

Holotype (only specimen known so far) GPIT 1206/99.

Fig. see TAX2748 D or TAX2174 D (suture).