Xiphophoridium

"XIPHOPHORIDIUM" Sarjeant, 1966b, p.146–147.  Taxonomic senior synonym: Dinopterygium, according to Fensome et al. (2009, p.27).  Taxonomic senior synonym: Oodnadattia, according to Below (1981a, p.64) — however, Lentin and Williams (1981, p.294) retained Xiphophoridium.  Nomenclatural junior synonym: Pyramidium, which has the same type.  Type: Cookson and Eisenack, 1962b, pl.2, fig.1, as Hystrichodinium alatum.

Parent: Order Gonyaulacales Suborder uncertain Family uncertain

Species List:

"*Xiphophoridium alatum"
"Xiphophoridium asteriforme"