Hystrichosphaeridium mineralosum
From dinoflaj3
?mineralosum Varma and Dangwal, 1964, p.64–65, pl.1, figs.8–12; pl.2, fig.1. Holotype: Varma and Dangwal, 1964, pl.1, fig.9. Originally Hystrichosphaeridium, subsequently (and now) Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56) as a problematic species. Age: Eocene–Oligocene.
Parent: Hystrichosphaeridium
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