Baltisphaeridium iaculigerum Appendix A
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"iaculigerum" Klement, 1960, p.57–58, pl.7, fig.10. Emendation: Sarjeant, 1984a, p.171, as Operculodinium? iaculigerum. Holotype: Klement, 1960, pl.7, fig.10; Sarjeant, 1984a, pl.2, fig.5; text-fig.7; Fauconnier and Masure, 2004, pl.23, figs.4–5. NOW Downiesphaeridium. Originally Baltisphaeridium, subsequently Operculodinium?, thirdly Cleistosphaeridium, fourthly (and now) Downiesphaeridium. Taxonomic junior synonym: Cleistosphaeridium polyacanthum, according to Brenner (1988, p.42) — however, Islam (1993, p.84) retained Cleistosphaeridium? (as Downiesphaeridium) polyacanthum. Age: middle Kimmeridgian.
Parent: Baltisphaeridium_Appendix A