1841  Goniatites Proteus Brown: 217, pl.7 fig.27,28.
     1849  Goniatites Proteus.-Brown: 248, pl.21 fig.27,28.
     1902  Glyphioceras spirale.-Hind: 114, pl.6 fig.8.
     1918  Glyphioceras spirale.-Hind: 443.
     1924  Homoceras proteum.-Bisat: 110, pl.4 fig.7, pl.10 fig.4,5.
     1945  Homoceras proteum.-Wright: 126.
     1946  Hudsonoceras proteum.-Moore: 434, pl.27 fig.5-7, textfig.31.
     1954  Hudsonoceras proteum.-Hodson: 226, fig.6, 275, fig.7, 276, pl.11 fig.5.
     1955  Hudsonoceras proteum.-Delmer: 166, pl.A fig.6, pl.B fig.1.
     1957  Homoceras proteum.-Patteisky: 517, fig.6b.
     1957  Homoceras proteum.-Leggewie & Schonefeld: 233, pl.17 fig.1.
     1957  Hudsonoceras proteum.-Hodson: 8.
     1958  Hudsonoceras proteum.-Hodson & Leckwijck: pl.A fig.1, pl.B fig.1-3,5.
     1958  Hudsonoceras proteum.-Chalard: 2635.
     1958  Hudsonoceras proteum.-Chalard: 127, pl.5.
     1958  Hudsonoceras proteum.-Lambrecht: B 135.
     1959  Hudsonoceras proteum.-Patteisky: 11, pl.3 fig.8-10.
     1960  Hudsonoceras proteum.-Chalard: pl.A fig.1-4.
     1961  Hudsonoceras proteum.-Bouckaert: fig.1.
     1978  Hudsonoceras proteum.-Ruzhentsev & Bogoslovskaya: 134, pl.1 fig.10-12.
     1985  Hudsonoceras proteus.-House: 127, pl.6.7.30.
     1993  Hudsonoceras proteum.-Saunders & Ramsbottom: 996, fig.1,8.

Derivatio nominis: Proteus = greek, lat., name is derived from a sea god in Greek mythology capable of assuming
different forms. Species name is invariably "proteus" according to ICZN.

Fig. TAX2352 A (cross-section, B-E (sutures).    Fig. see TAX2026A C (cross-section).