Palaeohystrichosphaeridium williereae Appendix A
From dinoflaj2
"williereae" (Martin, 1966b, p.389-391, pl.1, fig.23; text-figs.33-34) Eiserhardt, 1986, p.181. Holotype: Martin, 1966b, pl.1, fig.23. NOW Dilatisphaera (Appendix A). Originally Hystrichosphaeridium, subsequently Dilatisphaera (combination not validly published, Appendix A), thirdly Palaeohystrichosphaeridium, fourthly (and now) Dilatisphaera. Taxonomic junior synonym: Ozotobrachion? podolicus Sheshegova, 1973, an acritarch species, according to Kiryanov (1978, p.90). Age: Silurian (Llandovery).
Parent: Palaeohystrichosphaeridium
