Comasphaeridium whitei, (Deflandre and Courteville, 1939), de Coninck, 1969

Now Cometodinium?. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (an acritarch genus?), thirdly Impletosphaeridium, fourthly Comasphaeridium, fifthly (and now) Cometodinium?.

Holotype: Deflandre and Courteville, 1939, pl.3, fig.5
Age: Senonian