pt. 1851  Goniatites retrorsus var. typus.-Sandberger &
           Sandberger, p.109, pl.10a fig.3-4, ?fig.5.
 pt. 1851  Goniatites retrorsus var. circumflexus.-Sandberger
           & Sandberger, p.109, pl.10a fig.9.
   ? 1921  Tornoceras simplex.-Schindewolf, p.153.
?pt. 1950  Lobotornoceras sandbergeri.-Termier & Termier, pl.142
           fig.20-22.
     1984  Rivotornoceras korni Becker, p.79, pl.6 fig.2a-d,
           textfig.8i,14a.
     1990  Falcitornoceras korni.-Becker: 207, pl.7 fig.7-11,
           17, textfig.74l-m,75d-e.