1926  Protocanites planus Schindewolf, p.105.
     1960  Protocanites planus planus.-Vöhringer, p.174, pl.6  fig.3.
     1994  Eocanites planus.-Korn: 82, textfig. 73F; 74B.
     2003  Eocanites planus.-Korn, Ebbighausen, Bockwinkel & Klug: 1125, fig.3A.

Fig. see TAX47 B (suture, from Korn, 1994, fig.74B).