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Micrhystridium trispinosum
Micrhystridium trispinosum (Eisenack, 1938) Eisenack et al., 1979
Combination not validly published since Eisenack et al., 1979 did not intend to
propose this combination.
Now Veryhachium (an acritarch genus). Originally Hystrichosphaeridium, subsequently (and now) Veryhachium (an acritarch genus), thirdly Baltisphaeridium (an acritarch genus), fourthly Micrhystridium (combination not validly published). Tax. sr. synonym of the acritarch species Veryhachium cucruse Timofeev, 1962,
according to Martin, 1969. In their synonymy list for the acritarch species Veryhachium trispinosum, Eisenack et al., 1979b indicated that this taxon had been transferred to Micrhystridium by P÷the de Baldis, 1975. However, the latter author (P÷the de Baldis, 1975) cited the name of the taxon as "Veryhachium trispinosum
(Eis.) emend."
Holotype: Eisenack, 1938, text-fig.2; lost, according to Eisenack et al., 1979
Age: Silurian (based on material from an erratic)
Combination not validly published since Eisenack et al., 1979 did not intend to
propose this combination.
Now Veryhachium (an acritarch genus). Originally Hystrichosphaeridium, subsequently (and now) Veryhachium (an acritarch genus), thirdly Baltisphaeridium (an acritarch genus), fourthly Micrhystridium (combination not validly published). Tax. sr. synonym of the acritarch species Veryhachium cucruse Timofeev, 1962,
according to Martin, 1969. In their synonymy list for the acritarch species Veryhachium trispinosum, Eisenack et al., 1979b indicated that this taxon had been transferred to Micrhystridium by P÷the de Baldis, 1975. However, the latter author (P÷the de Baldis, 1975) cited the name of the taxon as "Veryhachium trispinosum
(Eis.) emend."
Holotype: Eisenack, 1938, text-fig.2; lost, according to Eisenack et al., 1979
Age: Silurian (based on material from an erratic)