Cleistosphaeridium multispinosum
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"?multispinosum" (Singh, 1964, p.141–142, pl.20, figs.1–2) Brideaux, 1971, p.93. Holotype: Singh, 1964, pl.20, fig.1; Fauconnier and Masure, 2004, pl.23, fig.10. NOW Cometodinium. Originally Baltisphaeridium (Appendix A), subsequently Cleistosphaeridium, thirdly Cleistosphaeridium?, fourthly Downiesphaeridium, fifthly (and now) Cometodinium. Questionable assignment: Stover and Evitt (1978, p.31). Age: middle Albian–early Cenomanian.
Parent: Cleistosphaeridium