Hystrichosphaeridium stellatum
From dinoflaj3
"?stellatum" Maier, 1959, p.320–321, pl.33, figs.3–4. Holotype: Maier, 1959, pl.33, fig.3; Sarjeant, 1983, pl.7, figs.1–2. NOW Florentinia. Originally Hystrichosphaeridium, subsequently Hystrichosphaeridium?, thirdly (and now) Florentinia, fourthly Hystrichokolpoma. Taxonomic senior synonym: Hystrichokolpoma rigaudiae, according to Sarjeant (1983, p.104) — however, Srivastava (1995, p.306) retained Hystrichosphaeridium? (as and now Florentinia) stellatum. Questionable assignment: Stover and Evitt (1978, p.56). Age: middle Oligocene–middle Miocene.
Parent: Hystrichosphaeridium