Kallosphaeridium helbyi subsp. psilatum (Burger, 1980a, p.71, pl.25, figs.5-11) Lentin and Williams, 1989, p.206.
TYPE: Holotype: Burger, 1980a, pl.25, fig.10. HISTORY: Originally Canningia? minor var. psilata, subsequently Canningia? minor subsp. psilata, thirdly Chytroeisphaeridia minor subsp. psilata, fourthly (and now) Kallosphaeridium? helbyi subsp. psilatum. AGE: Aptian-Albian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |