?   1931  Schistoceras sp. Miller: 423, figs.5-7  [*questionable, strata and locality insufficiently known].
     1934  Schistoceras sp. Miller & Cline: 181, pl.28  fig.10,11.
?   1980  Schistoceras sp. Kullmann & Ramovs: 199,  textfig.4D,E, pl.1 fig.4. [questionable, section insufficiently known].
     1996  Schistoceras sp. Davis & Mapes: 175, Fig.14-8, 12-13, 14-9, 11, 14-10, 7.
     1997  Schistoceras spp. Mapes et al.: 214, text-fig.2-11, pl.2-3 fig.1-6, 9,13.
     1999  Schistoceras sp. Davis, Mapes and Klofak: pl.1 fig.3, 4, 6.