Hystrichosphaera furcata subsp. angusta
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"subsp. angusta" Wetzel, 1952, p.394, pl.A, fig.2; text-fig.2. Emendation: Sarjeant, 1984c, p.125–126, as Spiniferites ramosus var. angustus. Holotype: Wetzel, 1952, pl.A, fig.2; text-fig.2; Sarjeant, 1984c, pl.8, figs.3–4. NOW Spiniferites ramosus? subsp. angustus. Originally Hystrichosphaera furcata subsp. angusta, subsequently (and now) Spiniferites ramosus? subsp. angustus, thirdly Spiniferites ramosus var. angustus. Age: Danian.
Parent: Hystrichosphaera furcata