Baltisphaeridium oligacanthum subsp. granulatum Appendix A

"subsp. granulatum" (Wetzel, 1952, p.404; text-fig.25) Downie and Sarjeant, 1965, p.93.  Emendation: Sarjeant, 1984c, p.136, as Surculosphaeridium? granulatum.  Holotype: Wetzel, 1952, text-fig.25; Sarjeant, 1984c, pl.5, figs.1–3; text-fig.8.  NOW Surculosphaeridium? granulatum.  Originally Hystrichosphaeridium oligacanthum subsp. granulatum, subsequently Baltisphaeridium oligacanthum subsp. granulatum, thirdly Cleistosphaeridium? oligacanthum subsp. granulatum, fourthly (and now) Surculosphaeridium? granulatum.  Age: Paleocene.

Parent: Baltisphaeridium oligacanthum_Appendix A