Hystrichosphaeridium asteroideum
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"asteroideum" (Maslov, 1956, p.262, pl.86, fig.13) Deflandre and Deflandre-Rigaud, 1958, card 1359. Holotype: Maslov, 1956, pl.86, fig.13. NOW Baltisphaeridium asteroideum (Appendix A). Originally Hystrichosphaera asteroidea, subsequently Hystrichosphaeridium asteroideum, thirdly Baltisphaeridium hirsutoides forma asteroideum (Appendix A), fourthly (and now) Baltisphaeridium asteroideum (Appendix A). Age: Late Cretaceous.
Parent: Hystrichosphaeridium