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Trichodinium erinaceoides
From Fensome et al., 2019:
Trichodinium erinaceoides Davies, 1983, p.21–22, pl.6, figs.6–15; text-fig.17.
Holotype: Davies, 1983, pl.6, figs.6–7.
Locus typicus: Ellef Ringnes Island, District of Franklin, Northwest Territories, Canada
Stratum typicum: Late Tithonian-Early Valanginian
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Original diagnosis: Davies, 1983, p.21-22
A species of Trichodinium with a dense covering of short hair-like spines (5-7 µm long) which obscure the cyst body. Two faint, narrow alignments of spines delimit the cingulum. A slight inflection in the cyst outline marks the apical horn; otherwise the shape is spherical. Archeopyle: P3.
Size: length - 21(23)26 µm; breadth - 18(20)24 µm.
Affinities:
Davies, 1983, p. 22: This species closely resembles Trichodinium pellitum (length - 48-64 µm; Eisenack and Cookson, 1960) except that it is much smaller. The minute size and the dense covering of spines inhibit further description.
Trichodinium erinaceoides Davies, 1983, p.21–22, pl.6, figs.6–15; text-fig.17.
Holotype: Davies, 1983, pl.6, figs.6–7.
Locus typicus: Ellef Ringnes Island, District of Franklin, Northwest Territories, Canada
Stratum typicum: Late Tithonian-Early Valanginian
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Original diagnosis: Davies, 1983, p.21-22
A species of Trichodinium with a dense covering of short hair-like spines (5-7 µm long) which obscure the cyst body. Two faint, narrow alignments of spines delimit the cingulum. A slight inflection in the cyst outline marks the apical horn; otherwise the shape is spherical. Archeopyle: P3.
Size: length - 21(23)26 µm; breadth - 18(20)24 µm.
Affinities:
Davies, 1983, p. 22: This species closely resembles Trichodinium pellitum (length - 48-64 µm; Eisenack and Cookson, 1960) except that it is much smaller. The minute size and the dense covering of spines inhibit further description.