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Deflandrea bakeri forma pellucida
Deflandrea bakeri forma pellucida Deflandre and Cookson, 1955
Now Isabelidinium pellucidum. Originally Deflandrea bakeri forma pellucida, subsequently Deflandrea pellucida, thirdly (and now) Isabelidinium pellucidum. See also Isabelia pellucida (combination illegitimate) and Alterbia pellucida (combination illegitimate).
Holotype: Deflandre and Cookson, 1955, pl.4, fig.3
Locus typicus: Nelson bore, Victoria, Australia
Stratum typicum: ?Paleocene-Early Eocene
Original description: Deflandre and Cookson, 1955, p. 251
Membrane of the theca thinner and more finely punctate than that of the type. Outline not especially enlarged in the region of the cyst. Posterior end simply and obliquely truncate, slightly depressed in the middle.
Dimensions: Type - theca, length 118 µm, breadth 77 µm; cyst, length 67 µm, breadth 74 µm. Other specimens: length up to 113 µm, breadth up to 92 µm.
Now Isabelidinium pellucidum. Originally Deflandrea bakeri forma pellucida, subsequently Deflandrea pellucida, thirdly (and now) Isabelidinium pellucidum. See also Isabelia pellucida (combination illegitimate) and Alterbia pellucida (combination illegitimate).
Holotype: Deflandre and Cookson, 1955, pl.4, fig.3
Locus typicus: Nelson bore, Victoria, Australia
Stratum typicum: ?Paleocene-Early Eocene
Original description: Deflandre and Cookson, 1955, p. 251
Membrane of the theca thinner and more finely punctate than that of the type. Outline not especially enlarged in the region of the cyst. Posterior end simply and obliquely truncate, slightly depressed in the middle.
Dimensions: Type - theca, length 118 µm, breadth 77 µm; cyst, length 67 µm, breadth 74 µm. Other specimens: length up to 113 µm, breadth up to 92 µm.