1887  Ammonites aequabilis Beyrich, p.34, pl.1 fig.1a-1b.
     1851  Goniatites aequabiblis.-Sandberger, pl.8  fig.10-10e.
     1902  Gephyroceras gerolsteiniense.-Frech: 55, textfig.16a,  pl.3 fig.6,8.
     1917  Gephyroceras aequabile.-Wedekind, p.122, pl.16 fig.5-6, textfig.28c.
     1931  Ponticeras pernai.-v.Gaertner: 152 [not described],
      -----    Ponticeras sandbergeri.-v.Gaertner: 152 [not described]
     1956  ? Ponticeras cf. incertus.-Müller, p.43, pl.1 fig.4.
     1959  Probeloceras aff. aequabile.-Petter, p.154, pl.11 fig.2-2a, textfig.40B.
     1965  Ponticeras pernai.-Flügel & Kropfitsch-Flügel: 10 [not described],
      ------   Ponticeras sandbergeri.-Flügel & Kropfitsch-Flügel: 10 [not described].
     1973  Ponticeras sp. Kullmann: 7 [not described].
     1979  Ponticeras sp. Kullmann: 70 [not descirbed].
     1985  Ponticeras cf. kayseri.-House & Kirchgasser, fig.7A,B.
     1985  Ponticeras sp. House, Kirchgasser, Price, Wade:  12, fig.13.
     1985  Ponticeras aff. aequabile.-House, Kirchgasser, Price, Wade: 12, fig.13.