1951  Imitoceras rugilobatum Miller & Collinson, p.467, pl.68 fig.15,16.
     2002  Masonoceras rugilobatum.-Work & Manger: 574.
     2004  Imitoceras rugilobatum.-Becker & Weyer: 31. [Holotype 9 mm, immature, maybe early stage of Karagandoceras or               Masonoceras].