Cleistosphaeridium ancyreum

From dinoflaj3
Revision as of 15:40, 4 December 2016 by Maintenance script (Talk | contribs)

Jump to: navigation, search

ancyreum (Cookson and Eisenack, 1965a, p.126, pl.14, figs.1-3) Eaton et al., 2001, p.191.  Holotype: Cookson and Eisenack, 1965a, pl.14, fig.1; Fauconnier and Masure, 2004, pl.76, figs.1-3.  Originally Systematophora ancyrea, subsequently Systematophora placacantha var. ancyrea (combination not validly published), thirdly (and now) Cleistosphaeridium ancyreum.  Taxonomic senior synonym: Hystrichosphaeridium (now Cleistosphaeridium) placacanthum, according to Stover and Evitt (1978, p.84) - however, Lentin and Williams (1981, p.272) retained Systematophora ancyrea.  Age: Late Eocene.

Parent: Cleistosphaeridium