*Downiesphaeridium spinulastrum (Islam, 1983b, p.337-338, pl.2, figs.1-2) Islam, 1993, p.84.
TYPE: Holotype: Islam, 1983b, pl.2, fig.1; Islam, 1993, pl.1, fig.11. HISTORY: Originally Cleistosphaeridium, subsequently (and now) Downiesphaeridium. AGE: Mid Eocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |