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Hystrichokolpoma cinctum
From Fensome et al., 2019:
Hystrichokolpoma cinctum Klumpp, 1953, p.389, pl.17, figs.3–4,5a–d. Holotype: Klumpp, 1953, pl.17, figs.3,5a; Damassa, 1979a,
text-fig.4. Taxonomic junior synonym: Hystrichokolpoma eisenackii, according to Damassa (1979a, p.823–824).
Age: Late Eocene.
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Translation Klumpp, 1953: Stover and Evitt, 1978
Original description: Klumpp 1953, p. 389 (same as for genus)
The shell is almost round, divided by a girdle-like zone into two separate halves. The lower consists of six plates with inflated processes, between which in the middle there is an opening. The upper part carries four humped plates adjacent to the girdle and one field with thin spines as on girdle. A smaller plate with a hollow process, longer than the bags [i.e., bag-like inflated processes], forms the apical field.
Dimensions: Diameter 40 µm, length of broad processes 24-28 µm, apical process40 µm, length of slender processes 20-24 µm. Variation: All specimens present the same diameter, length of broad processes 20-28 µm, length of slender processes 16-24 µm.
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Hystrichokolpoma cinctum Klumpp, 1953, differs from H.eisenackii in that the distal terminations of the broad processes are less branched, there are more cingular processes, and the anterior sulcal is smaller. Size: diameter of central body 46 µm, process length 20-28 µm, antapical process length 40 µm, slender processes 16-24 µm.
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Hystrichokolpoma cinctum Klumpp, 1953, p.389, pl.17, figs.3–4,5a–d. Holotype: Klumpp, 1953, pl.17, figs.3,5a; Damassa, 1979a,
text-fig.4. Taxonomic junior synonym: Hystrichokolpoma eisenackii, according to Damassa (1979a, p.823–824).
Age: Late Eocene.
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Translation Klumpp, 1953: Stover and Evitt, 1978
Original description: Klumpp 1953, p. 389 (same as for genus)
The shell is almost round, divided by a girdle-like zone into two separate halves. The lower consists of six plates with inflated processes, between which in the middle there is an opening. The upper part carries four humped plates adjacent to the girdle and one field with thin spines as on girdle. A smaller plate with a hollow process, longer than the bags [i.e., bag-like inflated processes], forms the apical field.
Dimensions: Diameter 40 µm, length of broad processes 24-28 µm, apical process40 µm, length of slender processes 20-24 µm. Variation: All specimens present the same diameter, length of broad processes 20-28 µm, length of slender processes 16-24 µm.
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Hystrichokolpoma cinctum Klumpp, 1953, differs from H.eisenackii in that the distal terminations of the broad processes are less branched, there are more cingular processes, and the anterior sulcal is smaller. Size: diameter of central body 46 µm, process length 20-28 µm, antapical process length 40 µm, slender processes 16-24 µm.
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