Difference between revisions of "Hystrichosphaeridium trispinosum"
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Revision as of 15:58, 4 December 2016
"trispinosum" Eisenack, 1938a, p.14,16; text-figs.2-3. Emendation: Stancliffe and Sarjeant, 1994, p.233, as Veryhachium trispinosum. Holotype: Eisenack, 1938a, text-fig.2, lost according to Eisenack et al. (1979, p.499). Neotype: Deunff, 1980, pl.1, fig.7, designated by Stancliffe and Sarjeant (1994, p.233). NOW Veryhachium (Appendix A). Originally Hystrichosphaeridium, subsequently (and now) Veryhachium (Appendix A), thirdly Baltisphaeridium (Appendix A), fourthly Micrhystridium (combination not validly published; Appendix A). Taxonomic junior synonyms: Veryhachium cucruse Timofeev, 1962, an acritarch species, according to Martin (1969, p.106) and Veryhachium arctatum Deunff, 1981, Veryhachium concavum Piskun, 1974a, Veryhachium edenense Colbath, 1979, Veryhachium microgranuliferum Piskun, 1974a and Hystrichosphaeridium (subsequently Veryhachium) trisulcum, all acritarch species, and all according to Stancliffe and Sarjeant (1994, p.233). Age: Silurian (erratic).
Parent: Hystrichosphaeridium