1836 Goniatites obtusus Phillips: 234, pl.19 fig.10-13.
1849 Goniatites obtusus.-Brown: 28, pl.21 fig.51, 52, 57.
1897 Glyphioceras obtusum.-Foord & Crick: 169.
1924 Beyrichoceras obtusum.-Bisat: 84.
1937 Beyrichoceras obtusum.-Plummer & Scott: 173, textfig.35.
1937 Adelphoceras meslerianum.-Plummer & Scott: 174, pl.38 fig.17,18, textfig.36.
1940 Beyrichoceras obstusum.-Delépine: 69, pl.4 fig.3-8, textfig.16.
1941 Beyrichoceras obstusum.-Delépine: 64, pl.3 fig.33-35.
1946 Girtyoceras meslerianum.-Moore: 390, textfig.2.
1947 Beyrichoceras obtusum.-Miller, fig.1.
1949 Girtyoceras aff. G. meslerianum.-Miller,Downs & Youngquist: pl.99 fig.1-4, 9,10, textfig.3c,4.
1965 Girtyoceras meslerianum.-Gordon: textfig.63A,B,64D.
1961 Girtyoceras meslerianum.-Pareyn: 117, pl.10 fig.4-8, textfig.11A,B.
1983 Beyrichoceras obtusum.-Sheng: 58, textfig.14A.
1984 Beyrichoceras obtusum.-Conrad: 168, pl.6 fig.4.
2008 Beyrichoceras obtusum.-Nikolaeva: 41, text-fig.29, pl.4 fig.1, 2.

Lectotype: BMNH London C247a (598), designated Foord & Crick, 1897, p.171.