1970  Tornia House: 671.
     1971  Tornia.- Bogoslovskii: 46.
     1972  Tornia.- Schindewolf: 37.
     2002  Tornia.-Korn & Klug: 166.

Type species: Protornoceras mirabile Dybczynski, 1913, p. 514.

A:   Open umbilicate tornoceratids with ventral siphuncle.
B:   Biconvex growth lines.
G:   Narrow ventral lobe, broad shallow lateral lobe and a deep linguiform dorsal lobe.