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Chlamydophorella trabeculosa
From Fensome et al., 2019:
Chlamydophorella trabeculosa (Gocht, 1959, p.62, pl.4, fig.5) Davey, 1978, p.893. Emendation: Harding, 1996, p.359,361,363, as Gardodinium trabeculosum. Holotype: Gocht, 1959, pl.4, fig.5; Harding, 1996, pl.3, figs.1,6–7. Originally Scriniodinium, subsequently Gardodinium, thirdly (and now) Chlamydophorella. Lentin and Williams (1989, p.143) retained this species in Gardodinium, but we retain it in Chlamydophorella as Gardodinium is now
considered a taxonomic junior synonym of Chalmydophorella. Taxonomic junior synonyms: Gardodinium
eisenackii, according to Davey (1974, p.51); Gardodinium albertii and Gardodinium pyriforme, both according to
Harding (1996, p.359); Gardodinium elongatum, by implication in Brideaux and McIntyre (1975, p.33), who
considered Gardodinium elongatum to be a taxonomic junior synonym of Gardodinium eisenackii. Age:
Hauterivian.
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Original diagnosis Scrinodinium trabeculosum: [Gocht, 1959, p. 62]: (Translation: LPP):
Diagnosis:
Body areate, flattened, rounded to oval, +/- outstanding apical horn, wide at its base. Girdle slightly spiral, weakly indented, sutures simple and thin.
Inner body round, with conical protrusion, reaching into the apical horn. Inner and outer body connected by numerous processes. Membranes delicate and transparent.
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Supplemental description:
Davey, 1978, p. 893:
Description:
This species has been found to display paratabulation compatible with that of the Leptodinium Complex.
Paratabulation is expressed on the surface of the tenuous ectophragm by rather inconspicuous ridges. The ectophragm is 0.1 µm thick and highly perforate (although the perforations are <0.1 µm in dia.). The paratabulation formula is apparently typically L-type sexiform gonyaulacoid, although the apical nature of the archaeopyle means that li is very elongated and A consequently reduced in length.
Archaeopyle is Type (tA) involving four apical paraplates. Some specimens display an adnate operculum, but usually this is lost by tearing across 1 µm.
Autophragm is laevigate with a dense cover of solid, cylindrical, intratabular processes up to 3 µm long which flare proximally and distally. Each process base is surrounded by an areola of punctae. The point of contact of the process with the ectophragm is marked on the distal surface by a small depression.
Chlamydophorella trabeculosa (Gocht, 1959, p.62, pl.4, fig.5) Davey, 1978, p.893. Emendation: Harding, 1996, p.359,361,363, as Gardodinium trabeculosum. Holotype: Gocht, 1959, pl.4, fig.5; Harding, 1996, pl.3, figs.1,6–7. Originally Scriniodinium, subsequently Gardodinium, thirdly (and now) Chlamydophorella. Lentin and Williams (1989, p.143) retained this species in Gardodinium, but we retain it in Chlamydophorella as Gardodinium is now
considered a taxonomic junior synonym of Chalmydophorella. Taxonomic junior synonyms: Gardodinium
eisenackii, according to Davey (1974, p.51); Gardodinium albertii and Gardodinium pyriforme, both according to
Harding (1996, p.359); Gardodinium elongatum, by implication in Brideaux and McIntyre (1975, p.33), who
considered Gardodinium elongatum to be a taxonomic junior synonym of Gardodinium eisenackii. Age:
Hauterivian.
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Original diagnosis Scrinodinium trabeculosum: [Gocht, 1959, p. 62]: (Translation: LPP):
Diagnosis:
Body areate, flattened, rounded to oval, +/- outstanding apical horn, wide at its base. Girdle slightly spiral, weakly indented, sutures simple and thin.
Inner body round, with conical protrusion, reaching into the apical horn. Inner and outer body connected by numerous processes. Membranes delicate and transparent.
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Supplemental description:
Davey, 1978, p. 893:
Description:
This species has been found to display paratabulation compatible with that of the Leptodinium Complex.
Paratabulation is expressed on the surface of the tenuous ectophragm by rather inconspicuous ridges. The ectophragm is 0.1 µm thick and highly perforate (although the perforations are <0.1 µm in dia.). The paratabulation formula is apparently typically L-type sexiform gonyaulacoid, although the apical nature of the archaeopyle means that li is very elongated and A consequently reduced in length.
Archaeopyle is Type (tA) involving four apical paraplates. Some specimens display an adnate operculum, but usually this is lost by tearing across 1 µm.
Autophragm is laevigate with a dense cover of solid, cylindrical, intratabular processes up to 3 µm long which flare proximally and distally. Each process base is surrounded by an areola of punctae. The point of contact of the process with the ectophragm is marked on the distal surface by a small depression.