1930  Gastrioceras sp. Menchikoff, p.199, pl.16 fig.3a,b.
     1937  Gastrioceras smithwickense.-Plummer & Scott: 111, 112.
     1963  Diaboloceras neumaieri.-Quinn & Carr, p.303, pl.1.
     1966  Diaboloceras neumaieri.-Furnish & Knapp, p.303, pl.35 fig.6-9.
     1968  Diaboloceras neumeieri.-McCaleb: 66, pl.10 fig.4,5, pl.12 fig.5,6, textfig.21.
     1977  Diaboloceras neumeieri.-Saunders, Manger &  Gordon, pl.6 fig.9.
     1985  Diaboloceras neumeieri.-Lemosquet, Conrad & Manger: 422, pl.9 fig.12, 13.
     1992  Diaboloceras neumeieri.-Manger, Miller & Mapes: 105, 108, pl.1 fig.5, 9.

Holotype Univ.Arkansas collection L11WO1.

Fig. TAX2924 (sutures, from McCaleb, 1968, fig.21).