Kallosphaeridium spongiosum
From dinoflaj2
?spongiosum Batten and Lister, 1988, p.344-345, figs.4e-h. Holotype: Batten and Lister, 1988, figs.4e-g. Questionable assignment: Batten and Lister (1988, p.344). Age: Late Hauterivian.
Parent: Kallosphaeridium
