Back
Cleistosphaeridium oligacanthum ssp. velatum
From Fensome et al., 2019:
Cleistosphaeridium? oligocanthum ssp. velatum (Wetzel, 1952, p.403–404, pl.A, fig.7; text-fig.24) Lentin and Williams, 1973, p.29. Emendation: Sarjeant, 1984c, p.133, as Cauca? velata. Holotype: Wetzel, 1952, pl.A, fig.7; text-fig.24;
Sarjeant, 1984c, pl.3, figs.4–6; text-fig.6. NOW Cauca? velata. Originally Hystrichosphaeridium
oligacanthum subsp. velatum, subsequently Baltisphaeridium oligacanthum subsp. velatum (Appendix A),
thirdly Cleistosphaeridium? oligacanthum subsp. velatum, fourthly (and now) Cauca? velata. Age:
Paleocene.
---------------------------------------------------------------------------------------------------
Original diagnosis as Hystrichodinium oligocanthum ssp. velatum: [W. Wetzel, 1952, p. 403-404]: (Translation: Sarjeant, 1984):
Diagnosis:
In one specimen from Danian flint "C" otherwise in agreement with the typical forms, it is noticeable that, between each of the processes Iying in the same plane, a very delicate membrane is extending, which has not been embedded [in the flint] without damage. The curving of the processes obviously is caused in this case by the formation of the veil and not first developed postmortally, as otherwise might be supposed.
Cleistosphaeridium? oligocanthum ssp. velatum (Wetzel, 1952, p.403–404, pl.A, fig.7; text-fig.24) Lentin and Williams, 1973, p.29. Emendation: Sarjeant, 1984c, p.133, as Cauca? velata. Holotype: Wetzel, 1952, pl.A, fig.7; text-fig.24;
Sarjeant, 1984c, pl.3, figs.4–6; text-fig.6. NOW Cauca? velata. Originally Hystrichosphaeridium
oligacanthum subsp. velatum, subsequently Baltisphaeridium oligacanthum subsp. velatum (Appendix A),
thirdly Cleistosphaeridium? oligacanthum subsp. velatum, fourthly (and now) Cauca? velata. Age:
Paleocene.
---------------------------------------------------------------------------------------------------
Original diagnosis as Hystrichodinium oligocanthum ssp. velatum: [W. Wetzel, 1952, p. 403-404]: (Translation: Sarjeant, 1984):
Diagnosis:
In one specimen from Danian flint "C" otherwise in agreement with the typical forms, it is noticeable that, between each of the processes Iying in the same plane, a very delicate membrane is extending, which has not been embedded [in the flint] without damage. The curving of the processes obviously is caused in this case by the formation of the veil and not first developed postmortally, as otherwise might be supposed.