Downiesphaeridium multispinosum

multispinosum (Singh, 1964, p.141–142, pl.20, figs.1–2) Islam, 1993, p.84.  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.  Age: middle Albian–early Cenomanian.

Parent: Downiesphaeridium