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Bosedinia radiata
From Fensome et al., 2019:
Bosedinia radiata He Chengquan, 1984b, p.176, pl.8, fig.23. Holotype: He Chengquan, 1984b, pl.8, fig.23. Age: Oligocene.
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Original description: [He Chengquan, 1984b] (translated from Chinese with Google):
Bosedinia radiata (sp. nov.)
(Plate VIII, Figure 23)
Description: The shell is flat, with an oblate rhomboid outline and broad, rounded sides at the equatorial region. A single transverse fold is often present. The shell wall is less than 1 micron thin, divided into two layers of nearly equal thickness or with unclear stratification. The surface is vaguely reticulated, with mesh size varying between 1×1 and 1×2 microns. At the tail and/or apex, the reticulation forms radial ridges, spaced approximately equally and approximately 2 microns wide. The ridges are low, reflecting only the outline. The palate is ancient, formed by the displacement of the apical region, with a fissure along its margins. The operculum is connected.
Shell diameter 57-62.5 μm; holotype diameter 62.5 μm.
Origin: Shangsi, Guangxi; the first and second members of the Yongning Group, very small in quantity.
Bosedinia radiata He Chengquan, 1984b, p.176, pl.8, fig.23. Holotype: He Chengquan, 1984b, pl.8, fig.23. Age: Oligocene.
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Original description: [He Chengquan, 1984b] (translated from Chinese with Google):
Bosedinia radiata (sp. nov.)
(Plate VIII, Figure 23)
Description: The shell is flat, with an oblate rhomboid outline and broad, rounded sides at the equatorial region. A single transverse fold is often present. The shell wall is less than 1 micron thin, divided into two layers of nearly equal thickness or with unclear stratification. The surface is vaguely reticulated, with mesh size varying between 1×1 and 1×2 microns. At the tail and/or apex, the reticulation forms radial ridges, spaced approximately equally and approximately 2 microns wide. The ridges are low, reflecting only the outline. The palate is ancient, formed by the displacement of the apical region, with a fissure along its margins. The operculum is connected.
Shell diameter 57-62.5 μm; holotype diameter 62.5 μm.
Origin: Shangsi, Guangxi; the first and second members of the Yongning Group, very small in quantity.