Kallosphaeridium minus Cookson and Hughes 1964
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"?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