Holotype BB.P223.WB; figured by Korn, 2007, Fig. 17B.

1830 Ammonites subcrenatus (nomen nudum).-Hoeninghaus: 239.
1831 Ammonites subcrenatus (nomen nudum).-Münster: 371, pl.8 fig.1.
1897 Gastrioceras carbonarium.-Foord & Crick: 229, fig.110 (pt.).
1914 Gastrioceras carbonarium.-Pruvost: 16.
1929 Gastrioceras subcrenatum.-Schmidt in Gürich: pl.19 fig.17,18.
1931 Gastrioceras subcrenatum = Gastr.carbonarium.-Dorlodot & Delépine: 73, fig.10-13c.
1938 Gastrioceras subcrenatum.-Demanet & v.Straelen: 183, fig.59.
1964 Gastrioceras carbonarium angustum Patteisky: 650, pl.1 fig.10-13c.
1965 Gastrioceras carbonarium angustum.-Patteisky: 20, pl.7 fig.12a-c,13-15, pl.8 fig.1-3.
1997 Gastrioceras angustum.-Korn: 89, pl.15 fig.7.

2007 Gastrioceras angustum. -Korn, 29, figs. 17, 18.