1912  Posttornoceras contiguum Sobolev, p.8, pl.6 fig.5-7 non Münster, 1832 !
?   1914  gamma-Gomi-dimeroceras (Posttornoceras) contiguum Münster.- Sobolev, p.58, pl.8 fig.20, textfig.95.
     1923  Sporadoceras contiguum.-Schindewolf: 348.
     1953   Sporadoceras contiguum.-Nalivkina, p.95, pl.3 fig.2-4.
     1971  Posttornoceras contiguum.-Bogoslovskiy, p.87, pl.4 fig.8, text-fig.23.
?   1993  Sporadoceras contiguum.-Becker: 317, fig.95j, pl.26 fig.13-14.
     1995  Posttornoceras sodale [sic] Becker: 621.
     2002  Posttornoceras sodalis [sic].-Korn & Klug: 169, Fig.152 C.

[Sobolev's species junior homonym of Posttornoceras contiguum Münster,1832, p.26.]

Holotype 1048/984, Bogoslovskii 1971, pl.4 fig.8 - teste Becker 1995, p.621.
   
Fig. TAX912 (suture, Bogoslovskii).