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Baltisphaeridium colligerum
Baltisphaeridium colligerum, (Deflandre and Cookson, 1955), Downie and Sarjeant, 1965
Now Diphyes. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly (and now) Diphyes. This combination was not validly published in Downie and Sarjeant, 1963 since these authors did not fully reference the basionym.
Holotype: Deflandre and Cookson, 1955, pl.7, fig.3
Age: Early Eocene
Now Diphyes. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly (and now) Diphyes. This combination was not validly published in Downie and Sarjeant, 1963 since these authors did not fully reference the basionym.
Holotype: Deflandre and Cookson, 1955, pl.7, fig.3
Age: Early Eocene