1981  Sphenoclymenia plana Bogoslovskiy: 103, pl.16 fig.1,2,  text-fig.46.
     1991  Sphenoclymenia plana.-Dzik: fig.1A,B.
     2002  Sphenoclymenia plana.-Korn & Klug: 271, Fig.236 A, D.

Fig. TAX754 A (cross-section), b: (suture).