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Cleistosphaeridium oligacanthum ssp. stella
From Fensome et al., 2019:
Cleistosphaeridium oligocanthum ssp. stella (Wetzel, 1952, p.403, pl.A, fig.4; text-fig.23) Lentin and Williams, 1973, p.29. Emendation: Sarjeant, 1984c, p.135, as Surculosphaeridium phoenix subsp. stella. Holotype: Wetzel, 1952, pl.A, fig.4; Dietz et al. 1999, text-fig.6f. NOW Surculosphaeridium? stella. Originally Hystrichosphaeridium
oligacanthum subsp. stella, subsequently Baltisphaeridium oligacanthum subsp. stella (Appendix A),
thirdly Cleistosphaeridium? oligacanthum subsp. stella, fourthly Surculosphaeridium? phoenix subsp.
stella, fifthly (and now) Surculosphaeridium? stella. NIA. Age: Paleocene.
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Original diagnosis as Hystrichosphaeridium oligocanthum ssp. stella: [W. Wetzel, 1952, p. 403]: (Translation: Sarjeant, 1984):
Diagnosis:
Some specimens, which in other attributes do not differ from the typical species, are distinguishable from it in that the distal ends of the processes develop into two sideways-directed prongs (and thereby suggest more the usual structure of hystrichosphere processes). Also no noteworthy curving of the processes was observed.
Cleistosphaeridium oligocanthum ssp. stella (Wetzel, 1952, p.403, pl.A, fig.4; text-fig.23) Lentin and Williams, 1973, p.29. Emendation: Sarjeant, 1984c, p.135, as Surculosphaeridium phoenix subsp. stella. Holotype: Wetzel, 1952, pl.A, fig.4; Dietz et al. 1999, text-fig.6f. NOW Surculosphaeridium? stella. Originally Hystrichosphaeridium
oligacanthum subsp. stella, subsequently Baltisphaeridium oligacanthum subsp. stella (Appendix A),
thirdly Cleistosphaeridium? oligacanthum subsp. stella, fourthly Surculosphaeridium? phoenix subsp.
stella, fifthly (and now) Surculosphaeridium? stella. NIA. Age: Paleocene.
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Original diagnosis as Hystrichosphaeridium oligocanthum ssp. stella: [W. Wetzel, 1952, p. 403]: (Translation: Sarjeant, 1984):
Diagnosis:
Some specimens, which in other attributes do not differ from the typical species, are distinguishable from it in that the distal ends of the processes develop into two sideways-directed prongs (and thereby suggest more the usual structure of hystrichosphere processes). Also no noteworthy curving of the processes was observed.