Hapsidaulax margarethae

*margarethae Sarjeant, 1975b, p.144-147, pl.1, figs.a-d, pl.2, figs.a-d; text-figs.1A-D,2A-D,3A-D.  Emendation: Stancliffe and Sarjeant, 1990, p.203.  Holotype: Sarjeant, 1975b, pl.1, figs.c-d; text-figs.1A-D; Stancliffe and Sarjeant, 1990, text-fig.4, nos.1-3.  Age: Bathonian.

Parent: Hapsidaulax