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Hystrichokolpoma salacia ssp. salacia
From Fensome et al., 2019:
Hystrichokolpoma salacium ssp. salacium Autonym. Holotype: Eaton, 1976, pl.11, fig.1; text-figs.16A–B; Bujak et al., 1980, pl.3, figs.7–8; Fauconnier and Masure, 2004, pl.41, figs.2–3. NIA
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Locus typicus: Bracklesham Beds, Whitecliff Bay, Isle of Wight, England
Stratum typicum: Middle Eocene
Original description: Eaton, 1976, p. 271-272
Diagnosis: Cyst body subspherical with a smooth o finely granular surface. There are two types of intratabular processes. Large cylindrical processes, restricted to the pre- and postcingular and antapical zones, are subcircular or subquadrate in cross-section, distally closed, and the majority devoid of distal tubules. The slender processes, restricted to the cingular and sulcal zones, are simple or branched, and distally expanded and open. All processes have a finely striated surface. Reflected tabulation 4', 6'', 6c, 5''', 1p, 1''''; archaeopyle apical, tetratabular.
Dimensions: Holotype: cyst body (without operculum) 46x44 µm; large pocesses, length up to 23 µm, breadth up to 16 µm; antapical process, length 26 µm, breadth 14 µm; length of slender processes up to 10 µm. Observed range: diameter of cyst body (without operculum) 30-50 µm; large processes, length up to 24 µm, breadth up to 18 µm; antapical process, length up to 36 µm, breadth up to 18 µm; length of slender processes up to 16 µm. (n = 20).
Affinities:
Eaton, 1976, p. 272
The large closed cylindrical processes are devoid of distal tubules, but they frequently show longitudinal folds. The slender processes on the cingular zone are variable in form and number; in most specimens there are two processes per cingular plate. The antapical process is considerably longer than the other large processes and differs in overall form; it gradually tapers distally for about half to two-thirds of its length and then sharply to a restricted distal termination. The anterior sulcal process (a.s.) is larger than the other sulcal processes. The form of the apical processes has not been determined. The comparative simplicity of its large processes distinguishes H. salacia n. sp. from the majority of the desribed species of Hystrichokolpoma. H. poculum Maier,1959 also has simple large processes, but they were described by Maier (1959) as being cup-shaped and distally open.
Heilmann-Clausen in Heilmann-Clausen and Costa, 1989, p. 466-467: Hystrichokolpoma cf. salacium
Specimens classified here include forms without, or with only weakly developed, tubuli on the processes. They are rather variable; processes may be striate or smooth. Some specimens are close to those classified with Hystrichokolpoma granulatum.
Hystrichokolpoma salacium ssp. salacium Autonym. Holotype: Eaton, 1976, pl.11, fig.1; text-figs.16A–B; Bujak et al., 1980, pl.3, figs.7–8; Fauconnier and Masure, 2004, pl.41, figs.2–3. NIA
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Locus typicus: Bracklesham Beds, Whitecliff Bay, Isle of Wight, England
Stratum typicum: Middle Eocene
Original description: Eaton, 1976, p. 271-272
Diagnosis: Cyst body subspherical with a smooth o finely granular surface. There are two types of intratabular processes. Large cylindrical processes, restricted to the pre- and postcingular and antapical zones, are subcircular or subquadrate in cross-section, distally closed, and the majority devoid of distal tubules. The slender processes, restricted to the cingular and sulcal zones, are simple or branched, and distally expanded and open. All processes have a finely striated surface. Reflected tabulation 4', 6'', 6c, 5''', 1p, 1''''; archaeopyle apical, tetratabular.
Dimensions: Holotype: cyst body (without operculum) 46x44 µm; large pocesses, length up to 23 µm, breadth up to 16 µm; antapical process, length 26 µm, breadth 14 µm; length of slender processes up to 10 µm. Observed range: diameter of cyst body (without operculum) 30-50 µm; large processes, length up to 24 µm, breadth up to 18 µm; antapical process, length up to 36 µm, breadth up to 18 µm; length of slender processes up to 16 µm. (n = 20).
Affinities:
Eaton, 1976, p. 272
The large closed cylindrical processes are devoid of distal tubules, but they frequently show longitudinal folds. The slender processes on the cingular zone are variable in form and number; in most specimens there are two processes per cingular plate. The antapical process is considerably longer than the other large processes and differs in overall form; it gradually tapers distally for about half to two-thirds of its length and then sharply to a restricted distal termination. The anterior sulcal process (a.s.) is larger than the other sulcal processes. The form of the apical processes has not been determined. The comparative simplicity of its large processes distinguishes H. salacia n. sp. from the majority of the desribed species of Hystrichokolpoma. H. poculum Maier,1959 also has simple large processes, but they were described by Maier (1959) as being cup-shaped and distally open.
Heilmann-Clausen in Heilmann-Clausen and Costa, 1989, p. 466-467: Hystrichokolpoma cf. salacium
Specimens classified here include forms without, or with only weakly developed, tubuli on the processes. They are rather variable; processes may be striate or smooth. Some specimens are close to those classified with Hystrichokolpoma granulatum.