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Cauca velata
From Fensome et al., 2019:
Cauca? velata (Wetzel, 1952, p.403–404, pl.A, fig.7; text-fig.24) Sarjeant, 1984c, p.133. 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.
Originally Hystrichosphaeridium oligacanthum subsp. velatum, subsequently Baltisphaeridium oligacanthum subsp.
velatum (Appendix A), thirdly Cleistosphaeridium? oligacanthum subsp. velatum, fourthly (and now) Cauca?
velata. Questionable assignment: Sarjeant (1984c, p.133–134). Age: Paleocene.
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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 lying 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.
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Emended description:
Sarjeant, 1984, p. 133-134:
Diagnosis:
Proximochorate, holotabulate cyst, spheroidal to broadly ovoidal. The cingular paraplates each give rise to a single, curving process, acuminate, evexate or bifid distally. Hypotractal paraplates marked by low ridges, with tiny spinelets at paraplate nodes; paratabulation gonyaulacacean (6c, 6""", 1p, 1pv, 1""""). Epitractal structure unknown.
Phragma two-layered, moderately thick, its surface minutely and irregularly granular or punctate. Isolated verrucae dot some of the paraplates.
Archaeopyle epitractal (type tAtP).
Dimensions:
Holotype (in polar view): equatorial diameter 60 µm, length of processes c. 15 µm.
Cauca? velata (Wetzel, 1952, p.403–404, pl.A, fig.7; text-fig.24) Sarjeant, 1984c, p.133. 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.
Originally Hystrichosphaeridium oligacanthum subsp. velatum, subsequently Baltisphaeridium oligacanthum subsp.
velatum (Appendix A), thirdly Cleistosphaeridium? oligacanthum subsp. velatum, fourthly (and now) Cauca?
velata. Questionable assignment: Sarjeant (1984c, p.133–134). Age: Paleocene.
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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 lying 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.
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Emended description:
Sarjeant, 1984, p. 133-134:
Diagnosis:
Proximochorate, holotabulate cyst, spheroidal to broadly ovoidal. The cingular paraplates each give rise to a single, curving process, acuminate, evexate or bifid distally. Hypotractal paraplates marked by low ridges, with tiny spinelets at paraplate nodes; paratabulation gonyaulacacean (6c, 6""", 1p, 1pv, 1""""). Epitractal structure unknown.
Phragma two-layered, moderately thick, its surface minutely and irregularly granular or punctate. Isolated verrucae dot some of the paraplates.
Archaeopyle epitractal (type tAtP).
Dimensions:
Holotype (in polar view): equatorial diameter 60 µm, length of processes c. 15 µm.