Difference between revisions of "Kallosphaeridium helbyi subsp. helbyi"
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Revision as of 13:44, 2 December 2016
subsp. helbyi. Autonym. Holotype: Cookson and Hughes, 1964, pl.8, fig.1. Originally Canningia? minor subsp. minor, subsequently Chytroeisphaeridia minor subsp. minor, thirdly (and now) Kallosphaeridium? helbyi subsp. helbyi. Age: Late Albian-Early Cenomanian.
Parent: Kallosphaeridium helbyi