1925  Aganides carinatus.-H.Schmidt, p.535, pl.19 fig.3.
     1960  Imitoceras acre Vöhringer, p.121, pl.1 fig.6.
     1981  Imitoceras (Imitoceras) acre.-Ruan, p.72, pl.15  fig.3-5.
cf  1988  Imitoceras cf. acre.-Korn, p.217, fig.1C.
     1988  Imitoceras acre.-Bartzsch & Weyer, p.134, fig.2/1.
     1994  Nicimitoceras acre.-Korn: 56, textfig. 58E; 60D.

Fig. see TAX 196 A (suture).