Baltisphaeridium twistringiense Appendix A
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"twistringiense" (Maier, 1959, p.308-309, pl.30, figs.3-4) Sarjeant, 1964a, p.176. Holotype: Maier, 1959, pl.30, fig.3; Sarjeant, 1983, pl.5, fig.3. NOW Spiniferites. Originally Galea (generic name illegitimate), subsequently Baltisphaeridium, thirdly Areoligera, fourthly (and now) Spiniferites. Taxonomic junior synonyms (at specific rank): Hystrichosphaera ramosa var. multibrevis (now Spiniferites multibrevis), according to Sarjeant (1983, p.94-95), who considered this species to be a taxonomic junior synonym of Hystrichosphaera ramosa var. multibrevis (as Spiniferites ramosus subsp. multibrevis); Achomosphaera (al. Spiniferites) cambra, by implication in Jain (1982, p.51). Age: Mid Miocene.
Parent: Baltisphaeridium_Appendix A