"Baltisphaeridium danicum" (W. Wetzel, 1952, p.396-397, pl.A, figs.5-6; text-fig.8) Downie and Sarjeant, 1965, pl.89.
EMENDATION: Sarjeant, 1984c, p.129-130, as Achomosphaera danica. TYPE: Holotype: W. Wetzel, 1952, pl.A, fig.6. HISTORY: NOW: Achomosphaera. Originally Areoligera, subsequently Baltisphaeridium, thirdly Hystrichosphaeridium, fourthly Cleistosphaeridium?, fifthly (and now) Achomosphaera. SYNONYM(S): Taxonomic senior synonym: Areoligera senonensis, according to Lejeune-Carpentier and Sarjeant (1981, p.15) - however, Sarjeant (1984c, p.130) retained Baltisphaeridium (as Achomosphaera) danicum. COMMENTS: This combination was not validly published in Downie and Sarjeant (1963, p.91), since these authors did not fully reference the basionym. AGE: Paleocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |