Ataxiodinium choane
From dinoflaj3
*choane Reid, 1974, p.588–589, pl.1, figs.1–2. Holotype: Reid, 1974, pl.1, figs.1–2; and Fensome et al., 1993a, figs.1–2 — p.1053. Originally (and now) Ataxiodinium, subsequently Planinosphaeridium. Edwards and Andrle (1992, p.265) retained this species in Ataxiodinium. Taxonomic senior synonym: Planinosphaeridium membranaceum, according to Dale (1976, p.45; footnote to table II) — however, Wall et al. (1977, p.149) retained Ataxiodinium (as Planinosphaeridium) choane. N.I.A. Age: Holocene.