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Cleistosphaeridium polytrichum
Cleistosphaeridium polytrichum, (Valensi, 1947, p.818; text-fig.4), Islam, 1993, p.87.
NOW Impletosphaeridium? Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cleistosphaeridium, fourthly Impletosphaeridium, fifthly Downiesphaeridium, sixthly (and now) Impletosphaeridium?.
Taxonomic junior synonym: Cleistosphaeridium (as Downiesphaeridium) polyacanthum, according to Masure in Fauconnier and Masure (2004, p.196).
Holotype: Valensi, 1947; text-fig.4; Fauconnier and Masure, 2004, pl.24, figs.1-6.
Age: Late Bathonian.
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Original sentence in Valensi 1947: "En outre, des silex du Bathonien supérieur renferment des Hystrichosphaeridium (H. polytrichum nov. sp., fig. 4) et des Péridiniens.
NOW Impletosphaeridium? Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cleistosphaeridium, fourthly Impletosphaeridium, fifthly Downiesphaeridium, sixthly (and now) Impletosphaeridium?.
Taxonomic junior synonym: Cleistosphaeridium (as Downiesphaeridium) polyacanthum, according to Masure in Fauconnier and Masure (2004, p.196).
Holotype: Valensi, 1947; text-fig.4; Fauconnier and Masure, 2004, pl.24, figs.1-6.
Age: Late Bathonian.
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Original sentence in Valensi 1947: "En outre, des silex du Bathonien supérieur renferment des Hystrichosphaeridium (H. polytrichum nov. sp., fig. 4) et des Péridiniens.