Ovum hispidum ssp. polygonale Eisenack, 1931

Name not validly published since the specific name Ovum hispidum is not validly
published.
Now Goniosphaeridium polygonale (an acritarch species). Originally Ovum hispidum ssp. polygonale (name not validly published), subsequently Hystrichosphaeridium polygonale, thirdly Baltisphaeridium polygonale (an acritarch species), fourthly (and now) Goniosphaeridium polygonale (an acritarch
species), see also Veryhachium polygonale (an acritarch species; combination not validly published) and Polygonium polygonale (an acritarch species; combination
not validly published).
Tax. sr. synonym of Impletosphaeridium? primordiale W. Wetzel, 1967, according to Eisenack et al., 1973.
Tax. sr. synonym of the acritarch species Veryhachium (al. Goniosphaeridium) splendens Paris and Deunff, 1970, according to Turner, 1984 who believed
Goniosphaeridium splendens to be the senior name.
Tax. sr. synonym of the acritarch species Hystrichosphaeridium al. Baltisphaeridium) sexradiatum Timofeev, 1959, according to Eisenack, 1965.

Holotype: Eisenack, 1931, pl.4, fig.19; lost, according to Eisenack, 1959
Neotype: Paris and Deunff, 1970, pl.1, fig.4 (as Veryhachium splendens); designated by Fensome et al., 1990 (not Eisenack, 1959); see discussion under Goniosphaeridium polygonale (an acritarch species)
Age: Silurian (based on material from an erratic)