Amphorosphaeridium fenestratum subsp. fenestratum

subsp. fenestratum.  Autonym.  Holotype: Davey, 1969c, pl.3, figs.1–2; Fensome et al., 1993a, fig.1 — p.1187; figs.1–2 — p.1183.

Parent: Amphorosphaeridium fenestratum