From Fensome et al., 2019:
Spiniferites ramosus ssp. multiplicatus (Rossignol, 1964, p.86, pl.1, fig.14; pl.3, fig.16) Lentin and Williams, 1973, p.130. Holotype: Rossignol, 1964, pl.1, fig.14. Originally Hystrichosphaera furcata var. multiplicata, subsequently Hystrichosphaera ramosa var. multiplicata (combination not validly published), thirdly Spiniferites ramosus subsp. multiplicatus. Taxonomic senior synonym (at specific rank): Hystrichosphaera (as Spiniferites) hyperacantha, according to Matsuoka (1985a, p.35) — however, Londeix et al. (2009, p.66) and Mertens et al. (2018a, p.23,34) retained both taxa. Age: Pleistocene–Holocene.

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