Hystrichosphaera furcata var. membranacea

"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.  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