Solisphaeridium stimuliferum subsp. complanatum Appendix A

"subsp. complanatum" (Wetzel, 1952, p.404-405, pl.A, figs.11a-b) Sarjeant, 1984c, p.142.  Emendation: Sarjeant, 1984c, p.142, as Solisphaeridium stimuliferum subsp. complanatum.  Holotype: Wetzel, 1952, pl.A, figs.11a-b; Sarjeant, 1984c, pl.4, fig.6; text-fig.13.  NOW Micrhystridium stimuliferum? subsp. complanatum (Appendix A).  Originally Hystrichosphaeridium oligacanthum subsp. complanatum, subsequently Baltisphaeridium oligacanthum subsp. complanatum (Appendix A), thirdly Cleistosphaeridium? oligacanthum subsp. complanatum, fourthly Solisphaeridium stimuliferum subsp. complanatum, fifthly (and now) Micrhystridium stimuliferum? subsp. complanatum (Appendix A).  Age: Paleocene. Parent: Solisphaeridium stimuliferum