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Ascodinium parvum
From Fensome et al., 2019:
Ascodinium parvum (Cookson and Eisenack, 1958, p.28, pl.4, figs.12–13) Cookson and Eisenack, 1960a, p.5. Holotype:
Cookson and Eisenack, 1958, pl.4, fig.12; lost according to Cookson and Eisenack (1960a, p.5). Neotype: Cookson
and Eisenack, 1960a, pl.1, fig.23, designated by Cookson and Eisenack (1960a, p.5). Originally Deflandrea,
subsequently (and now) Ascodinium. Age: late Albian–Cenomanian.
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Original description as Deflandrea parva: [Cookson and Eisenack, 1958, p. 28]:
Description:
Theca smooth, roughly five-sided much as in D. phosphoritica or more rounded and elliptical in outline, apex pointed, antapex with a short-pointed horn on one side or truncate. Transverse furrow rather well developed. Capsule oval, faintly granular not filling the theca laterally.
Dimensions:
Type - theca 57 x 38 µm, capsule 38 x 30 µm; range - theca 48-57 x 33-38 µm.
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Supplemental description as Ascodinium parvum:
Cookson and Eisenack, 1960, p. 5:
Description:
Shell flat, more or less rhombic in outline, with a blunt or sharply pointed apex and a sharply pointed antapex; girdle equatorial and circular. Capsule large and four-sided or occasionally oval, almost filling the shell. Lid of pylome circular, but, since the whole apex is finally detached, the remaining portion of the epitheca has a truncate appearance. Shell smooth, transparent; wall of capsule thin and smooth.
Ascodinium parvum (Cookson and Eisenack, 1958, p.28, pl.4, figs.12–13) Cookson and Eisenack, 1960a, p.5. Holotype:
Cookson and Eisenack, 1958, pl.4, fig.12; lost according to Cookson and Eisenack (1960a, p.5). Neotype: Cookson
and Eisenack, 1960a, pl.1, fig.23, designated by Cookson and Eisenack (1960a, p.5). Originally Deflandrea,
subsequently (and now) Ascodinium. Age: late Albian–Cenomanian.
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Original description as Deflandrea parva: [Cookson and Eisenack, 1958, p. 28]:
Description:
Theca smooth, roughly five-sided much as in D. phosphoritica or more rounded and elliptical in outline, apex pointed, antapex with a short-pointed horn on one side or truncate. Transverse furrow rather well developed. Capsule oval, faintly granular not filling the theca laterally.
Dimensions:
Type - theca 57 x 38 µm, capsule 38 x 30 µm; range - theca 48-57 x 33-38 µm.
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Supplemental description as Ascodinium parvum:
Cookson and Eisenack, 1960, p. 5:
Description:
Shell flat, more or less rhombic in outline, with a blunt or sharply pointed apex and a sharply pointed antapex; girdle equatorial and circular. Capsule large and four-sided or occasionally oval, almost filling the shell. Lid of pylome circular, but, since the whole apex is finally detached, the remaining portion of the epitheca has a truncate appearance. Shell smooth, transparent; wall of capsule thin and smooth.