Tityrosphaeridium fibrospinosum

"?fibrospinosum" (Davey and Williams, 1966b, p.86, pl.5, fig.5) Jain and Garg, 1986a, p.121.  Emendation: Davey, 1969c, p.36, as a revised diagnosis for Cordosphaeridium fibrospinosum.  Holotype: Davey and Williams, 1966b, pl.5, fig.5; Bujak et al., 1980, pl.7, figs.3,6.  NOW Cordosphaeridium.  Originally (and now) Cordosphaeridium, subsequently Emmetrocysta?, thirdly Tityrosphaeridium?. Questionable assignment: Jain and Garg (1986a, p.121).  Taxonomic junior synonyms: Cordosphaeridium exilimurum and Achomosphaera (subsequently Cordosphaeridium) valianta, both according to Fensome et al. (2009, p.23).  Age: early Eocene.

Parent: Tityrosphaeridium