1939b Propinacoceras aktubense Ruzhentsev: 839, fig.2.
     1949a Propinacoceras aktubense.-Ruzhentsev: 117, pl.6 fig.1-5, textfig.57a,b,84.
     1949  Propinacoceras aktubense.-Ruzhentsev: textfig.84.
     1956  Propinacoceras aktubense.-Ruzhentsev: 97, pl.2 fig.1, 2.
     1960  Propinacoceras aktubense.-Ruzhentsev: fig.29h.
     1986  Propinacoceras aktubense.-Bogoslovskaia: 66, pl.55 fig.13; pl.47 fig.6.

Fig. see TAX3227 A-B (sutures).