Conosphaeridium
From dinoflaj3
CONOSPHAERIDIUM Cookson and Eisenack, 1969, p.5. Taxonomic senior synonym: Litosphaeridium, by implication in Sarjeant (1969, p.14), who transferred the "type species" of Conosphaeridium, Conosphaeridium striatoconum, to Litosphaeridium — however, Lentin and Williams (1973, p.31) retained Conosphaeridium. Type: Deflandre and Cookson, 1955, text-fig.36, as Hystrichosphaeridium striatoconum.
Species List: