Veryhachium bacifer (Eisenack, 1934) Deunff, 1954

Combination not validly published since Deunff, 1954 did not fully reference the basionym.
Now Bacisphaeridium (an acritarch genus). Originally Bion, subsequently Hystrichosphaeridium, thirdly Veryhachium (combination not validly published), fourthly (and now) Bacisphaeridium (an acritarch genus); see also Baltisphaeridium (an acritarch genus; combination not validly published). This combination was not validly published in Deunff, 1954 additionally since that author did not clearly use the name Veryhachium bacifer.
Holotype: Eisenack, 1934, pl.4, fig.20; lost, according to Eisenack, 1962
Neotype: Eisenack, 1962, pl.44, fig.3; designated by Eisenack, 1962
Age: Late Ordovician