"Cordosphaeridium microtriainum subsp. nanus" (Rozen, 1965, p.311, pl.2, figs.7-8; text-fig.21) Lentin and Williams, 1973, p.33.
TYPE: Holotype: Rozen, 1965, pl.2, figs.7-8. HISTORY: NOW: Impletosphaeridium nanus. Originally Cordosphaeridium microtriainum var. nanus, subsequently Cordosphaeridium microtriainum subsp. nanus, thirdly Cleistosphaeridium? nanus, fourthly (and now) Impletosphaeridium nanus. ETYMOLOGY: N.I.A. AGE: Late Eocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |