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Aldorfia deflandrei
Aldorfia deflandrei, (Clarke and Verdier, 1967), Stover and Evitt, 1978
Holotype: Clarke and Verdier, 1967, pl.3, fig.10; Jan du Chene et al., 1986, pl.8, figs.10-11
Locus typicus: Isle of Wight, Culver Cliff; England
Stratum typicum: Senonian
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Original description as Gardodinium deflandrei: [Clarke and Verdier, 1967, p. 26]:
Diagnosis:
A species of Gardodinium without an apical protrusion of the inner body, with closely spaced pillars supporting the outer wall, and a precingular archaeopyle.
Description:
Inner body round, connected with a thin outer wall by means of pillars. Pillars more or less equal in length, joining distally or more proximally to give a rugulate pattern (text-fig. 10). This pillar-pattern is present over the whole of the inner body and is extended apically to form a horn. At this point the pillars are not in contact with the apical part of the inner body. A distinct arch-shaped archaeopyle is present and is precingular in position; such a feature is observed on about 90 % of the specimens. A girdle is present and can best be seen when viewed on edge of the outline; ventrally the displacement equals two girdle widths. In many specimens a longitudinal furrow, extended equally on both epitheca and hypotheca, can be observed. There is no tabulation.
Dimensions:
Holotype: Overall length 52 µm, overall breadth 40 µm, length of inner body 36 µm, breadth of inner body 34 µm, length of apical horn 8 µm, length of pillars 1.5-4 µm.
Range: Overall length 52-56 µm, overall breadth 40-48 µm, length of inner body 36-43 µm, breadth of inner body 34-41 µm, length of apical horn 8-10 µm, length of pillars 1.5-4.5 µm.
Affinities:
G. deflandrei differs f rom G. eisenacki Alberti in the absence of an apical protrusion on the inner body and from G. trabeculosum Alberti 1961 and G. albertii Neale and Sarjeant 1962 in the more closely spaced pillars.
Holotype: Clarke and Verdier, 1967, pl.3, fig.10; Jan du Chene et al., 1986, pl.8, figs.10-11
Locus typicus: Isle of Wight, Culver Cliff; England
Stratum typicum: Senonian
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Original description as Gardodinium deflandrei: [Clarke and Verdier, 1967, p. 26]:
Diagnosis:
A species of Gardodinium without an apical protrusion of the inner body, with closely spaced pillars supporting the outer wall, and a precingular archaeopyle.
Description:
Inner body round, connected with a thin outer wall by means of pillars. Pillars more or less equal in length, joining distally or more proximally to give a rugulate pattern (text-fig. 10). This pillar-pattern is present over the whole of the inner body and is extended apically to form a horn. At this point the pillars are not in contact with the apical part of the inner body. A distinct arch-shaped archaeopyle is present and is precingular in position; such a feature is observed on about 90 % of the specimens. A girdle is present and can best be seen when viewed on edge of the outline; ventrally the displacement equals two girdle widths. In many specimens a longitudinal furrow, extended equally on both epitheca and hypotheca, can be observed. There is no tabulation.
Dimensions:
Holotype: Overall length 52 µm, overall breadth 40 µm, length of inner body 36 µm, breadth of inner body 34 µm, length of apical horn 8 µm, length of pillars 1.5-4 µm.
Range: Overall length 52-56 µm, overall breadth 40-48 µm, length of inner body 36-43 µm, breadth of inner body 34-41 µm, length of apical horn 8-10 µm, length of pillars 1.5-4.5 µm.
Affinities:
G. deflandrei differs f rom G. eisenacki Alberti in the absence of an apical protrusion on the inner body and from G. trabeculosum Alberti 1961 and G. albertii Neale and Sarjeant 1962 in the more closely spaced pillars.