1909  Trizonoceras typicale Grity: 70, pl.11 fig.12,12a,12b.
     1979  Trizonoceras typicale.-Manger & Pareyn: textfig.2D.
     1981  Trizonoceras typicale.-Ruan: 209, pl.13 fig.1-7,16,17, textfig.72.
     1988  Trizonoceras typicale.-Manger: 31, text-fig.1D.

Holotype: USNM 119598

Fig. see TAX3776 C (suture).   TAX2690 D (suture).