Achomosphaera ramulifera subsp. perforata

subsp. perforata (Davey and Williams, 1966a, p.50, pl.5, figs.1,4) Lentin and Williams, 1973, p.10.  Holotype: Davey and Williams, 1966a, pl.5, fig.4; Bujak et al., 1980, pl.5, fig.1; Fensome et al., 1991, fig.2 — p.705; fig.3 — p.721.  Originally Achomosphaera ramulifera var. perforata, subsequently (and now) Achomosphaera ramulifera subsp. perforata.  Age: early Eocene.

Parent: Achomosphaera ramulifera