Tityrosphaeridium tenuistriatum
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"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