Pterosperma labyrinthus Appendix A
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"labyrinthus" Ostenfeld, 1903, p.578, fig.127. Holotype: Ostenfeld, 1903, fig.127. NOW Nematosphaeropsis. Originally Pterosperma, 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 Nematosphaeopsis balcombiana. Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dodge (1989, p.289). N.I.A. Age: extant.
Parent: Pterosperma
