1839  Goniatites quadripartitus.-Münster, p.46.
     1843  Goniatites quadripartitus Münster, p.46.
     1862  Goniatites linearis.-Gümbel, p.317, pt. pl.5 fig.12.
     1923  Imitoceras quadripartitum.-Schindewolf, p.333, pl.15
           fig.7.
     1924  Aganites cf. sciotoensis-Schmidt, p.150, pl.8 fig.6.
     1952  Imitoceras liratum.-Schindewolf, pl.1 fig.5.
     1952  Imitoceras intermedium.-Schindewolf, pl.1 fig.6,7.
     1954  Imitoceras intermedium.-Pfeiffer, p.98, pl.6 fig.2.
     1959  Prionoceras intermedium.-Petter, p.251, pl.29 fig.8-
           8a,10-10a,12-12a, textfig.56F.
     1959  Prionoceras quadripartitum.-Petter, p.252, pl.29
           fig.11-11a,13, textfig.56G.
     1959  Prionoceras liratum.-Petter, p.254, pl.29 fig.14-
           14a, pl.20 fig.4-4a, textfig.56C.
     1971  Imitoceras liratum.-Bogoslovskiy, p.192, pl.18
           fig.1,2.
non! 1986  Prionoceras quadripartitum.-House, Gordon & Hlavin:
           136, figs. 2.6, 3.1, 3.4, 3.7, 3.10-3.13, 4.17-4.19,
           7.4, 7.14.[*no cross-section available, herein
           regarded as Acutimitoceras ? sp., TAX83]
     1996  Rectimitoceras quadripartitum.-Becker: 34, 35.