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Cleistosphaeridium pectiniforme

From Fensome et al., 2019:
Cleistosphaeridium pectiniforme (Gerlach, 1961, p.195–196, pl.28, fig.14; text-fig.18) Davey et al., 1969, p.16. Emendations: Sarjeant, 1984b, p.83–84,86, as Areosphaeridium pectiniforme; Stover and Williams, 1995, p.114, as Enneadocysta pectiniformis. Holotype: Gerlach, 1961, pl.28, fig.14; Sarjeant, 1984b, pl.1, fig.2; pl.4, fig.2; Fauconnier and Masure, 2004, pl.7, figs.4–5. NOW Enneadocysta. Originally Baltisphaeridium (Appendix A), subsequently
Cleistosphaeridium, thirdly Areosphaeridium?, fourthly Areosphaeridium, fifthly (and now) Enneadocysta.
Taxonomic junior synonym: Areosphaeridium (now Enneadocysta) multicornutum, according to Sarjeant (1984b,
p.83–84,86)- however, Stover and Williams (1995, p.112) retained Areosphaeridium (as Enneadocysta)
multicornutum. This combination was not validly published in Davey et al. (1966, p.170), since these authors did
not fully reference the basionym. Age: middle Oligocene.

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Original description as Baltisphaeridium pectiniforme: [Gerlach, 1961, p. 195-196]: (Translation: LPP):

Diagnosis:
A species of the genus Baltisphaeridium with slender, solid processes, which extend widely and are set with numerous small hooks. Shell circular to oval. Membrane granulate.

Description:
The outline of the theca changes between circular and oval. The processes are massive, slender and extend to both sides. The rims of these side-branches are set with small hooks, so that the processes show a similarity with a rake. The membrane is delicate, hyaline and finely granulate.

Dimensions:
holotype: 32 (13) µm; paratypes: 42 (21) µm.
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