Tityrosphaeridium tenuistriatum

"tenuistriatum" (Heisecke, 1970, p.245, pl.7, fig.1; pl.12, figs.3–4) Sarjeant, 1981, p.121.  Emendation: Quattrocchio and Sarjeant (1996, p.118), as Tityrosphaeridium tenuistriatum.  Holotype: Heisecke, 1970, pl.7, fig.1; pl.12, figs.3–4.  NOW Cordosphaeridium?.  Originally Cordosphaeridium, subsequently (and now) Cordosphaeridium?, thirdly Tityrosphaeridium?, fourthly Tityrosphaeridium.  Questionable assignment: Sarjeant (1981, p.121) — however, Quattrocchio and Sarjeant (1996, p.118) retained this species in Tityrosphaeridium without question.  Quattrocchio and Sarjeant (1996, p.118) also proposed this combination.  Age: early Paleocene.

Parent: Tityrosphaeridium