pars 1918  Pseudoclymenia.-Wedekind: 138.
pars 1923  Pseudoclymenia.-Schindewolf: 308.
pars 1958  Tornoceras (Polonoceras).-Glenister: 90.
pars 1971  Polonoceras.-Bogoslovskii: 61.
pars 1975  Polonoceras.-Petersen: 19.
pars 1984  Polonoceras (Polonoceras).-Becker: 70.
        1993  Armatites Becker: 227.

Type species: Goniatites planidorsatus Münster,1839,p.21 [OD].

A:   Conch discoidal, with flattened flanks and flattened bicarinate venter.
B:   External band strong. Growth lines slightly prorsiradiate, with broad, asymmetric salient; ventral
       sinus deep. No ventrolateral grooves.
G:   Lateral saddle broad, steeply rounded passing into asymmetric adventitious lobe. Sutural formula: E A L I.

Fig. TAX5790 (sutures, cross-sections).