Cordosphaeridium tenuistriatum

?tenuistriatum Heisecke, 1970, p.245, pl.7, fig.1; pl.12, figs.3–4.  Emendation: Quattrocchio and Sarjeant, 1996, p.118, as Tityrosphaeridium tenuistriatum.  Holotype: Heisecke, 1970, pl.7, fig.1; pl.12, figs.3–4.  Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?, fourthly Tityrosphaeridium.  This species is here retained questionably in Cordosphaeridium since Tityrosphaeridium is now considered a taxonomic junior synonym of Cordosphaeridium.  Questionable assignment: Stover and Evitt (1978, p.147).  Age: early Paleocene.

Parent: Cordosphaeridium