Amphorosphaeridium fenestratum var. dividum
From dinoflaj3
"var. dividum" Davey, 1969c, p.32–33, pl.2, figs.5–6; text-fig.2. Holotype: Davey, 1969c, pl.2, fig.5; Fensome et al., 1993a, fig.1 — p.1135; fig.2 — p.1181. NOW Amphorosphaeridium fenestratum subsp. dividum. Originally Amphorosphaeridium fenestratum var. dividum, subsequently (and now) Amphorosphaeridium fenestratum subsp. dividum. Age: Campanian–Maastrichtian.
Parent: Amphorosphaeridium fenestratum