1836  Goniatites Gilbertsoni Phillips: 236, pl.20 fig.27,28,31 (?29,30).
     1849  Goniatites Gilbertsoni.-Brown: 28, p.21 fig.4, 5.
     1884  Dimorphoceras Gilbertsoni.-Hyatt: 331.
     1897  Dimorphoceras Gilbertsoni.-Foord & Crick: 220,  textfig.105.
     1930  Dimorphoceras gilbertsoni.-Moore: 163, textfig.1, no.1, p.164.
     1937  Dimorphoceras gilbertsoni.-Plummer & Scott: 339, textfig.69.
     1939  Dimorphoceras gilbertsoni.-Moore: 111, textfig.1,6.
     1979  Dimorphoceras gilbertsoni.-Manger & Pareyn: textfig.1A.
     1984  Dimorphoceras gilbertsoni.-Conrad: 168, pl.6 fgig.6.
     1985  Dimorphoceras gilbertsoni.-Lemosquet, Conrad & Manger: 425, pl.10 fig.14.
     1985  Dimorphoceras gilbertsoni.-House: 128, pl.6.7.16 fig.H.
     1988  Dimorphoceras gilbertsoni.-Manger: 31, text-fig.1A.
     2008  Dimorphoceras gilbertsoni.-Nikolaeva: 31, text-fig.22, pl.1 fig.6-8, pl.2 fig.1-2

Lectotype BMNH C249a, designated by Moore, 1939, 112, text-fig.1-6.

Locality of holotype unknown.

Fig. see TAX2174 A, TAX2748 A (suture).