1895  Xenaspis Waagen: 161.
     1940  Xenaspis.-Miller & Furnish: 75.
     1966  Xenaspis.-Furnish: 291.
     1975  Xenodiscus.-Spinosa, Furnish & Glenister: 270-271.

Type species: Ceratites carbonarius Waagen, 1872, p.355  [OD].

[Xenodiscus was thought to differ from Xenaspis only in the conch ornament, with prominent ribs, Xenaspis with relatively smooth shell.]