Ovum hispidum subsp. oligospinosum Appendix A
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"subsp. oligospinosum" Eisenack, 1934, p.64–65, pl.4, figs.15–18. Holotype: Eisenack, 1934, pl.4, fig.18, lost according to Eisenack et al. (1973, p.494). Name not validly published: specific name not validly published. NOW Estiastra? oligospinosa (Appendix A). Originally Ovum hispidum subsp. oligospinosum (name not validly published), subsequently Hystrichosphaeridium oligospinosum, thirdly Pulvinosphaeridium oligospinosum (Appendix A), fourthly Veryhachium oligospinosum (Appendix A), fifthly Goniosphaeridium oligospinosum (Appendix A), sixthly (and now) Estiastra? oligospinosa (Appendix A). Age: Ordovician (early Caradoc).
Parent: Ovum hispidum_Appendix A