Hystrichosphaerina exilimura
From dinoflaj2
"?exilimura" (Davey and Williams, 1966b, p.87, pl.11, fig.2) Sarjeant, 1981, p.122. Holotype: Davey and Williams, 1966b, pl.11, fig.2; Bujak et al., 1980, pl.7, figs.4-5. NOW Cordosphaeridium. Originally (and now) Cordosphaeridium, subsequently Hystrichosphaerina?, thirdly Tityrosphaeridium?. Questionable assignment: Sarjeant (1981, p.122). Taxonomic junior synonym: Achomosphaera (subsequently Cordosphaeridium) valianta, according to Jain (1982, p.52). Age: Early Eocene.
Parent: Hystrichosphaerina