Hystrichosphaeridium valgum
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"valgum" Tasch in Tasch et al., 1964, p.192–193, pl.2, fig.10. Holotype: Tasch et al., 1964, pl.2, fig.10. Taxonomic senior synonym: Hystrichosphaeridium (now Kiokansium) unituberculatum, according to Stover and Evitt (1978, p.267). Age: Albian.
Parent: Hystrichosphaeridium