Canningia crassicingulata, Burger, 1980

Now Levisphaera. Originally Canningia, subsequently Batiacasphaera, thirdly (and now) Levisphaera.

Holotype: Burger, 1980, figs.4D1,4D2; Fensome et al., p.1081, fig.2-3
Locality: BMR Cape Weymouth 2, Carpentaria Basin, Cape York Peninsula, Queensland, Australia; depth 170.7 m, Gilbert River Formation, Zone DK2
Age: probably Valanginian, Early Neocomian

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Original description: [Burger, 1980, p. 268]:

Description:
Rounded egg-shaped, without horns. Autophragm rigid, psilate, 1.5-2 µm thick, slightly thicker (up to 4 µm) in a broad cingular belt.
Archaeopyle apical with a zigzag margin, outlining the presence of 6 precingular paraplates; parasulcal notch usually present. Operculum not observed.
No other traces of paratabulation visible.

Dimensions:
Apical diameter (5 dehisced specimens) 52-78 µm, width 50-69 µm.