1996  Parahammatocyclus chaigleyensis Riley: 78, text-figs.49-50, pl.3 fig.1-3, 8; pl.6 fig.1, 4, 12; pl.7 fig.8.

[Holotype BGS Keyworth Ro5127, paratypes Ro3721, Ro3723, Ro5105. Ro5137, RH1631, 1657, 1661].

Fig. see TAX6269 (constriction, suture, cross section].