Achomosphaera triangulata

triangulata (Gerlach, 1961, p.194-195, pl.29, fig.1) Davey and Williams, 1969, p.4.  Emendation: Sarjeant, 1984b, p.82-83, as Achomosphaera triangulata.  Holotype: Gerlach, 1961, pl.29, fig.1; Sarjeant, 1984b, pl.1, figs.4-5.  Originally Baltisphaeridium (Appendix A), subsequently (and now) Achomosphaera.  Age: mid Oligocene-mid Miocene.

Parent: Achomosphaera