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Spinidinium echinoideum subsp. rhombicum

Spinidinium echinoideum subsp. rhombicum (Cookson and Eisenack, 1974, p.49-50, pl.20, figs.5-9) Lentin and Williams, 1976, p.64.

TYPE: Holotype: Cookson and Eisenack, 1974, pl.20, fig.7.

HISTORY: Originally Deflandrea rhombica, subsequently (and now) Spinidinium echinoideum subsp. rhombicum, thirdly Spinidinium rhombicum. Lentin and Williams (1981, p.257) retained this taxon as Spinidinium echinoideum subsp. rhombicum.

AGE: Albian-Cenomanian.


Infraspecific taxa:


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