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Hystrichokibotium
From Williams et al., 2017:
[Hystrichokibotium, Klumpp, 1953, p. 387
Type species: Hystrichokibotium pseudofurcatum, Klumpp, 1953 (pl.16, figs.12,14)]
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Original description: [Klumpp, 1953]: (Translation: Fensome, 1991, p. 273)
Diagnosis:
A genus with the characters of the family [Hystrichosphaeridae] and the following peculiarities: all plates of the test are trapezoidal polygons.
There is no cingular region consisting of oblong plates.
Description:
The test is approximately spherical, distinctly two-layered, with an internal region of plates and a thin continuous external membrane (see the general part [Klumpp, 1953, p.386). The tubular processes are formed accordingly, having an undivided rim with three or four tips at their opening.
The plates display a finely granular to warty sculpture. They may be so delicate that their sutures may be overlooked. It is possible that they become thicker during the life time [of the cyst].
[Hystrichokibotium, Klumpp, 1953, p. 387
Type species: Hystrichokibotium pseudofurcatum, Klumpp, 1953 (pl.16, figs.12,14)]
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Original description: [Klumpp, 1953]: (Translation: Fensome, 1991, p. 273)
Diagnosis:
A genus with the characters of the family [Hystrichosphaeridae] and the following peculiarities: all plates of the test are trapezoidal polygons.
There is no cingular region consisting of oblong plates.
Description:
The test is approximately spherical, distinctly two-layered, with an internal region of plates and a thin continuous external membrane (see the general part [Klumpp, 1953, p.386). The tubular processes are formed accordingly, having an undivided rim with three or four tips at their opening.
The plates display a finely granular to warty sculpture. They may be so delicate that their sutures may be overlooked. It is possible that they become thicker during the life time [of the cyst].