1861 Goniatites entogonus.-Gabb: 372.
1893 Gastrioceras entogonum.-Hyatt: 472, pl.47 fig.49-51.
1903 Gastrioceras entogonum.-Smith: 87, pl.X fig.17-19.
1937 Neoglyphioceras entogonum.-Plummer & Scott: 186, pl.9 fig.1-3.
1940 Lyrogoniatites entogonus.-Miller & Furnish: pl.48 fig.17,18.
1960 Neoglyphioceras hyatti n.nom. Gordon: 139, pl.28 fig.22-24. [fide Gordon: Goniatites entogonus Gabb belongs in Paralegoceras or Pseudoparalegoceras and is not conspecific with Hyatt's form].
1965 Neoglyphioceras hyatti.-Gordon: 198, fig.50K.

Hyatt's type (originally only specimen) UT 12036, Texas, designated as holotype by Gordon, 1960, p.139.