Hystrichosphaerina exilimura

"?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.  Originally Cordosphaeridium, subsequently Hystrichosphaerina?, thirdly Tityrosphaeridium?.  Questionable assignment: Sarjeant (1981, p.122).  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: Hystrichosphaerina