Bohaidina spinosa subsp. quadrata

subsp. quadrata (Xu Jinli and Mao Shaozhi, 1989, p.218, pl.1, fig.16; pl.2, figs.1–2; text-fig.4) Lentin and Williams, 1993, p.64.  Holotype: Xu Jinli and Mao Shaozhi, 1989, pl.2, fig.2.  Originally Bohaidina spinosa forma quadrata, subsequently (and now) Bohaidina spinosa subsp. quadrata.  Age: Early Tertiary.

Parent: Bohaidina spinosa