Kallosphaeridium minus Cookson and Hughes 1964

"?minus" (Cookson and Hughes, 1964, p.43, pl.8, figs.1–3,5) Helby, 1987, p.324–325.  Holotype: Cookson and Hughes, 1964, pl.8, fig.1.  Combination illegitimate — senior homonym: Kallosphaeridium? minus (Jiabo, 1978) Lentin and Williams, 1981.  Substitute name: Kallosphaeridium helbyi.  Originally Canningia minor, subsequently Canningia? minor, thirdly Batiacasphaera minor, fourthly Chytroeisphaeridia minor, fifthly Kallosphaeridium minus (combination illegitimate), sixthly (and now) Kallosphaeridium? helbyi.  Questionable assignment: Helby (1987, p.324–325).  Age: late Albian–early Cenomanian.

Parent: Kallosphaeridium