Hystrichosphaeridium atavum

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"atavum" Naumova, 1968, p.38, pl.2, fig.11.  Holotype: Naumova, 1968, pl.2, fig.11.  NOW Baltisphaeridium (Appendix A).  Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A).  Age: Cambrian.

Parent: Hystrichosphaeridium