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Trichodinium spinosum
From Fensome et al., 2019:
Trichodinium spinosum Singh, 1971, p.316–317, pl.48, figs.8–9.
Holotype: Singh, 1971, pl.48, fig.8; Jan du Chêne et al., 1986a, pl.122, fig.12.
Locus typicus: Peace River area, Lower Shaftesbury Formation, Sect. 3, Canada
Stratum typicum: Late Albian
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Original diagnosis: Singh, 1971, p.316
Test oval with one short, tubular, apical horn; horn usually wider at the tip; cingulum very faint, often not visible; archeopyle precingular; surface of the test granular, clensely coverecl with stiff, pointed spines of medium length; spines curvecd ancd with slightly expanded bases; body wall about 1,5 µm thick.
Dimensions: Total length of the test, including the horn 63 (69) 72 µm. Holotype 63 µm. Total breadth of the test, including the spines 48 (55) 58 µm. Holotype 48 µm. Total length of the body 48 (54) 57 µm. Holotype 48 µm. Total breadth of the body 37 (46) 53 µm. Holotype 37 µm. Length of the apical horn 8 (9) 10 µm. Holotype 8 µm. Length of the spines 5 (7) 8 µm, Holotype 8 µm.
Trichodinium spinosum Singh, 1971, p.316–317, pl.48, figs.8–9.
Holotype: Singh, 1971, pl.48, fig.8; Jan du Chêne et al., 1986a, pl.122, fig.12.
Locus typicus: Peace River area, Lower Shaftesbury Formation, Sect. 3, Canada
Stratum typicum: Late Albian
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Original diagnosis: Singh, 1971, p.316
Test oval with one short, tubular, apical horn; horn usually wider at the tip; cingulum very faint, often not visible; archeopyle precingular; surface of the test granular, clensely coverecl with stiff, pointed spines of medium length; spines curvecd ancd with slightly expanded bases; body wall about 1,5 µm thick.
Dimensions: Total length of the test, including the horn 63 (69) 72 µm. Holotype 63 µm. Total breadth of the test, including the spines 48 (55) 58 µm. Holotype 48 µm. Total length of the body 48 (54) 57 µm. Holotype 48 µm. Total breadth of the body 37 (46) 53 µm. Holotype 37 µm. Length of the apical horn 8 (9) 10 µm. Holotype 8 µm. Length of the spines 5 (7) 8 µm, Holotype 8 µm.