Hystrichosphaeridium fimbriatum

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"fimbriatum" (White, 1842, p.36, pl.4, div.3, fig.3) Deflandre, 1946a, card 899.  Holotype: White, 1842, pl.4, div.3, fig.3; Sarjeant, 1991, fig.4.2.  NOW Filisphaeridium (Appendix A).  Originally Xanthidium (Appendix A), subsequently Hystrichosphaeridium, thirdly Baltisphaeridium (Appendix A), fourthly Comasphaeridium (Appendix A), fifthly (and now) Filisphaeridium (Appendix A).  Age: Late Cretaceous.

Parent: Hystrichosphaeridium