1930  Prothalassoceras texana Scott & Plummer: 104 [nom.nud.].
     1930  Prothalassoceras kingorum Miller: 407, pl.39 fig.10-13.
     1937  Prothalassoceras kingorum.-Plummer & Scott: 353, pl.36 fig.7-16.
     1940  Eothalassoceras kingorum.-Miller & Furnish: 105.
     1950  Eothalassoceras kingorum.-Miller & Downs: 207.
     1992  Prothalassoceras kingorum.-Mapes & Boardman: 115.

See Fig.3255 B (suture).