1937  Gonioglyphioceras Plummer & Scott: 336.
     1937  Eudissoceras Miller & Owen: 408.
     1938  Gonioglyphioceras.- Elias: 99.
     1957  Gonioglyphioceras.- Treatise: L60.
     1960  Gonioglyphioceras.- Ruzhentsev: 208.
     1962  Gonioglyphioceras.- Osnovy: 372.
     1997  Gonioglyphioceras.- Mapes et al.: 219.

Type species: Gonioloboceras welleri gracile Girty, 1911, p. 153. [OD].

[= Eudissoceras MILLER & OWEN, 1937, p.408, type E. collinsvillense, p.409; OD (subj.)].

G:   Ventral side narrow, bicarinate. Suture-line like Gonioloboceras, but adventitious lobe rounded.

[For discussion see FURNISH & GLENISTER, 1971, p.303. Eudissoceras is based on immature specimens of
Gonioglyphioceras gracile (GIRTY) and therefore to be regarded as a junior synonym
of Gonioglyphioceras; for discussion see UNKLESBAY, 1962, p.69].

[Mapes et al., 1997, p.219: Mature conch discoidal and involute, possessing narrow retuse venter on exterior of test.
Eight-lobed suture at maturity having relatively rounded to pointed ventral prongs, wide to narrowly rounded to bluntly
pointed asymmetrical first lateral saddle, and relatively broadly rounded to bluntly pointed lateral lobe; lateral lobe
typically equal to or higher than prongs of ventral lobe.]