2001  Palaeogoniatitinae Klug: 504.
     2002  Palaeogoniatitinae.-Korn & Klug: 66.

Klug, 2001, p.504: Shell of moderate to moderately large size and advolute to gyroconical. Whorl cross section initially subcircular, later oval, subcircular, or subtrapezoidal with rounded venter at least in preadult stages. High to very high whorl expansion rates (2.5 to 3.5). Sculpture rursiradiate or rectiradiate, growth lines with a shallow lateral sinus at least in one growth stage, with a ventrolateral projection, and with a ventral sinus; the growth lines can be bi-, fasci- or virgatipartite. Suture line without or with a small internal lobe, with a broad and shallow lateral lobe and a small and narrow external lobe.

Comparison (Klug, 2001, p.504): Biconvex growth lines unite the genera listed below to this new subfamily. Additionally, most representatives of the Palaeogoniatitinae KLUG 2001 have broader whorls with more rounded venters (at least in preadult whorls) and coarser growth lines than the Teicherticeratinae BOGOSLOVSKY 1969. Both subfamilies share the high to very high whorl expansion rates and the course of the suture lines in most aspects. Within the Teicherticeratidae BOGOSLOVSKY 1969, the Palaeogoniatitinae represent the more apomorphic taxon which gave rise to the Mimagoniatitidae MILLER 1938 (Fig. 3).

A:   Conch with rounded ventral side.
B:   Growth lines biconvex.
C:   Riblets sometimes bipartite or virgatipartite.