Pyramidium
From dinoflaj3
"PYRAMIDIUM" Clarke and Verdier, 1967, p.39–40. Name illegitimate — nomenclatural senior synonym: Xiphophoridium, which has the same type. Taxonomic senior synonym: Oodnadattia, according to Below (1981a, p.64) — however, Lentin and Williams (1981, p.238,294) retained Xiphophoridium. Type: Cookson and Eisenack, 1962b, pl.2, fig.1, as Hystrichodinium alatum.
Parent: Order Gonyaulacales Suborder uncertain Family uncertain
Species List: