Baltisphaeridium oligacanthum subsp. granulatum Appendix A
From dinoflaj2
"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