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Deflandrea euthema
Deflandrea euthema Davey and Verdier, 1971
Now Eurydinium. Originally Deflandrea, subsequently Subtilisphaera?, thirdly (and now) Eurydinium.
Holotype: Davey and Verdier, 1971, pl.3, fig.2
Age: Middle-Late Albian
Original description: Davey and Verdier 1971, p. 40 (pl. 3, fig. 1-3): Deflandrea euthema
The antapical projection is angular, typically with one lateral side longer than the other (see plate 3, fig. 2). The archeopyle is sometimes present, but the operculum always remains attached along its apical border. Usually it more or less returns to its original position after excystment has taken place. This species, in the type material, does not stain with safranin.
Remarks: The simple form of D. euthema sp. nov. distinguishes it from all described species. The shape of the antapical projection is similar to some individuals belonging to the genus Ovoidinium Davey 1970, but archeopyle formation is different.
Now Eurydinium. Originally Deflandrea, subsequently Subtilisphaera?, thirdly (and now) Eurydinium.
Holotype: Davey and Verdier, 1971, pl.3, fig.2
Age: Middle-Late Albian
Original description: Davey and Verdier 1971, p. 40 (pl. 3, fig. 1-3): Deflandrea euthema
The antapical projection is angular, typically with one lateral side longer than the other (see plate 3, fig. 2). The archeopyle is sometimes present, but the operculum always remains attached along its apical border. Usually it more or less returns to its original position after excystment has taken place. This species, in the type material, does not stain with safranin.
Remarks: The simple form of D. euthema sp. nov. distinguishes it from all described species. The shape of the antapical projection is similar to some individuals belonging to the genus Ovoidinium Davey 1970, but archeopyle formation is different.