Hystrichosphaeridium asterigerum
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"asterigerum" Gocht, 1959, p.67, pl.3, fig.1; pl.7, figs.1–4. Holotype: Gocht, 1959, pl.3, fig.1; Fauconnier and Masure, 2004, pl.57, figs.1–6. NOW Oligosphaeridium?. Originally Hystrichosphaeridium, subsequently (and now) Oligosphaeridium?. Taxonomic junior synonym: Hystrichosphaeridium (as Oligosphaeridium) vasiformum, according to Duxbury (1977, p.45) — however, McIntyre and Brideaux (1980, p.21) retained Hystrichosphaeridium (as Oligosphaeridium) vasiformum. Age: late Valanginian–late Hauterivian.
Parent: Hystrichosphaeridium