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Aireiana taiwaniana
From Fensome et al., 2019:
Aireiana taiwaniana, Shaw Chenglong, 1999b, p.165, figs.4–6.
Holotype: Shaw Chenglong, 1999b, figs.4–6.
Age: Eocene.
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Original description: [Shaw Chenglong, 1999b]:
Description:
Cyst spherical and composed or two appressed wall layers. Periphragm less van 1 μm thick, smooth, elevated locally to form 14 or more crumpled-cylindrical to conate intratabular processes that are closed distally.
Processes about 7 μm high.
Paracingulum usually poorly defined.
Archeopyle indistinct.
Dimensions:
Holotype – overall diameter 51 μm, diameter of cyst 40 μm, surface features with crumpled-cylindrical to conate intratabular processes that are closed distally, the processes up to 7 μm long.
Remarks:
The new species most closely resembles Aireiana verrucosa Cookson & Eisenack in having a roughly similar outline; however, it differs both in having smooth periphragm and in having smaller size.
Aireiana taiwaniana, Shaw Chenglong, 1999b, p.165, figs.4–6.
Holotype: Shaw Chenglong, 1999b, figs.4–6.
Age: Eocene.
---------------------------------------------------------------------------------------------------
Original description: [Shaw Chenglong, 1999b]:
Description:
Cyst spherical and composed or two appressed wall layers. Periphragm less van 1 μm thick, smooth, elevated locally to form 14 or more crumpled-cylindrical to conate intratabular processes that are closed distally.
Processes about 7 μm high.
Paracingulum usually poorly defined.
Archeopyle indistinct.
Dimensions:
Holotype – overall diameter 51 μm, diameter of cyst 40 μm, surface features with crumpled-cylindrical to conate intratabular processes that are closed distally, the processes up to 7 μm long.
Remarks:
The new species most closely resembles Aireiana verrucosa Cookson & Eisenack in having a roughly similar outline; however, it differs both in having smooth periphragm and in having smaller size.