Circulodinium hirtellum

*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