"Baltisphaeridium sexradiatum" (Timofeev, 1959, p.53, pl.4, fig.7) Downie and Sarjeant, 1965, p.96.
TYPE: Holotype: Timofeev, 1959, pl.4, fig.7. HISTORY: Originally Hystrichosphaeridium, subsequently Baltisphaeridium. SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (now Polygonium) polygonale, according to Eisenack (1965c, p.261). COMMENTS: This combination was not validly published in Downie and Sarjeant (1963, p.90), since these authors did not fully reference the basionym. AGE: Early Ordovician.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |