Hystrichosphaera furcata var. membranacea
From dinoflaj3
"var. membranacea" Rossignol, 1964, p.86, pl.1, figs.4,9–10; pl.3, figs.7,12. Holotype: Rossignol, 1964, pl.1, figs.4, 9–10. NOW Spiniferites membranaceus. Originally Hystrichosphaera furcata var. membranacea, subsequently Hystrichosphaera ramosa var. membranacea, thirdly Hystrichosphaera membranacea, fourthly (and now) Spiniferites membranaceus, fifthly Gonyaulax membranacea. Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dale (1976, table 2 — p.45) and Dodge (1989, p.289). Age: Pleistocene–Holocene.
Parent: Hystrichosphaera furcata