Downiesphaeridium armatum (Deflandre, 1937b, p.76-77, pl.16 [al. pl.13], figs.6-7) Islam, 1993, p.84.
EMENDATION: Davey, 1969a, p.153, as Cleistosphaeridium armatum. TYPE: Holotype: Deflandre, 1937b, pl.16 (al. pl.13), fig.6. HISTORY: Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cleistosphaeridium, fourthly (and now) Downiesphaeridium. AGE: late Senonian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |