Impletosphaeridium polytrichum
From dinoflaj2
Revision as of 00:20, 1 September 2015 by Maintenance script (Talk | contribs)
"polytrichum" (Valensi, 1947, p.818; text-fig.4) Islam, 1993, p.87. Holotype: Valensi, 1947; text-fig.4; Fauconnier and Masure, 2004, pl.24, figs.1-6. NOW Downiesphaeridium. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cleistosphaeridium, fourthly Impletosphaeridium, fifthly (and now) Downiesphaeridium. Taxonomic junior synonym: Cleistosphaeridium (as Downiesphaeridium) polyacanthum, according to Masure in Fauconnier and Masure (2004, p.196). Age: Late Bathonian.
Parent: Impletosphaeridium
