IRMNG Taxon list
Prolixosphaeridium R.J. Davey, C. Downie, W.A.S. Sarjeant & G.L. Williams, 1966 †Prolixosphaeridium basifurcatum Dodekova, 1969 †Prolixosphaeridium coniculum R.J. Davey †Prolixosphaeridium conulum Davey †Prolixosphaeridium deirense Davey, Downie, Sarjeant & Williams †Prolixosphaeridium elongatum K.P. Jain †Prolixosphaeridium granulosum (Deflandre) Davey, Downie, Sarjeant & Williams †Prolixosphaeridium mixtispinosum (Klement) Davey, Downie, Sarjeant & Williams †Prolixosphaeridium parvispinum (G.V. Deflandre, 1937) Davey, Downie, Sarjeant & Williams, 1969 †Prolixosphaeridium spissum (Mcintyre & Brideaux, 1980) Lentin & Williams, 1981 †Prolixosphaeridium xanthiopyxides (O. Wetzel) Davey, Downie, Sarjeant & Williams †Prolixosphaeridium xanthiopyxides (Wetzel) Davey, Downie, Sarjeant & Williams †
