1971  Neoglyphioceras gradatum Ruzhentsev & Bogoslovskaya: 318, pl.36 fig.4-6.
     2009  Neoglyphioceras gradatum.-Nikolaeva et al., 2009: 87, fig.7 K, L.

Holotype: PIN 455/34100.

Fig. TAX2313 A (suture).