Sarjeant and Vavrdova, 1997
From dinoflaj2
Sarjeant, W.A.S. and Vavrdova, M., 1997: Taxonomic reconsideration of Multiplicisphaeridium Staplin, 1961 and other acritarch genera with branching processes. GeoLines, v.5, p.1-52, pl.1-4.
