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Kallosphaeridium helbyi subsp. helbyi

Kallosphaeridium helbyi subsp. helbyi Autonym.

TYPE: Holotype: Cookson and Hughes, 1964, pl.8, fig.1.

HISTORY: Originally Canningia? minor subsp. minor, subsequently Chytroeisphaeridia minor subsp. minor, thirdly (and now) Kallosphaeridium? helbyi subsp. helbyi.

AGE: Late Albian-Early Cenomanian.


Infraspecific taxa:


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DINOFLAJ (c) 1998