"Baltisphaeridium armatum" (Deflandre, 1937b, p.76-77, pl.16 [al. pl.13], figs.6-7) Downie and Sarjeant, 1965, p.87.
EMENDATION: Davey, 1969a, p.153, as Cleistosphaeridium armatum. TYPE: Holotype: Deflandre, 1937b, pl.16 (al. pl.13), fig.6. HISTORY: NOW: Downiesphaeridium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Cleistosphaeridium, fourthly (and now) Downiesphaeridium. COMMENTS: This combination was not validly published in Downie and Sarjeant (1963, p.9), since these authors did not fully reference the basionym. AGE: Late Senonian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |