Circulodinium hirtellum
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*hirtellum Alberti, 1961, p.28-29, pl.4, fig.20. Holotype: Alberti, 1961, pl.4, fig.20. Originally (and now) Circulodinium, subsequently Canningia, thirdly Cyclonephelium. Helby (1987, p.322,324-325) retained this species in Circulodinium. Backhouse (1988, p.83) considered this species to be a possible taxonomic junior synonym of Tenua (as Cyclonephelium) hystrix. Age: Valanginian-Hauterivian.
Parent: Circulodinium
