Cordosphaeridium exilimurum
From dinoflaj3
"exilimurum" Davey and Williams, 1966b, p.87–88, pl.11, fig.2. Holotype: Davey and Williams, 1966b, pl.11, fig.2; Bujak et al., 1980, pl.7, figs.4–5. Originally Cordosphaeridium, subsequently Hystrichosphaerina?, thirdly Tityrosphaeridium?. Lentin and Williams (1989, p.73) retained this species in Cordosphaeridium. Taxonomic senior synonym: Cordosphaeridium fibrospinosum, according to Fensome et al. (2009, p.23). Taxonomic junior synonym: Achomosphaera (subsequently Cordosphaeridium) valianta, according to Jain (1982, p.52). Age: early Eocene.
Parent: Cordosphaeridium