Baltisphaeridium panniforme Appendix A

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"panniforme" Gerlach, 1961, p.196, pl.28, fig.13.  Holotype: Gerlach, 1961, pl.28, fig.13.  NOW Impletosphaeridium.  Originally Baltisphaeridium, subsequently (and now) Impletosphaeridium, thirdly Cleistosphaeridium.  Taxonomic senior synonym: Hystrichosphaeridium (now Cleistosphaeridium) placacanthum, according to Sarjeant (1984b, p.86–87) — however, Eaton et al. (2001, p.191) retained Baltisphaeridium (as Impletosphaeridium) panniforme.  Age: middle Oligocene.

Parent: Baltisphaeridium_Appendix A