1971  Ophilyroceras tersum Ruzhentsev & Bogoslovskaya: 336, pl.38 fig.11-13.
     2009  Ophilyroceras tersum Nikolaeva et al., 2009: 87, fig.7 A, B.

Holotype: PIN 455/33404.

Fig. see TAX4838 A, B (sutures).