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Pterococcus labyrinthus
Pterococcus labyrinthus (Ostenfeld, 1903) Lohmann, 1904
Combination illegitimate: generic name illegitimate.
NOW Nematosphaeropsis. Originally Pterosperma (acritarch), subsequently Pterococcus (combination illegitimate), thirdly Coccopterum, fourthly (and now) Nematosphaeropsis.
Taxonomic junior synonym: Nematosphaeropsis balcombiana, according to Reid (1974, p.592) — however, Wrenn (1988, p.139) retained Nematosphaeropsis balcombiana. Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dodge (1989, p.289).
Holotype: Ostenfeld, 1903, fig.12
Age: Recent
Combination illegitimate: generic name illegitimate.
NOW Nematosphaeropsis. Originally Pterosperma (acritarch), subsequently Pterococcus (combination illegitimate), thirdly Coccopterum, fourthly (and now) Nematosphaeropsis.
Taxonomic junior synonym: Nematosphaeropsis balcombiana, according to Reid (1974, p.592) — however, Wrenn (1988, p.139) retained Nematosphaeropsis balcombiana. Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dodge (1989, p.289).
Holotype: Ostenfeld, 1903, fig.12
Age: Recent