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Pseudokomewuia cerciata
Pseudokomewuia cerciata He Chengquan, 1980
Holotype: He Chengquan, 1980, pl.1, fig.7
Age: Oligocene
Original description (He Chengquan, 1980)
Fusiform to rhomboidal in outline with one short apical and one antapical horns. Usually the apical horn rather strong, length 2.5-7 µm, width at base 3-10 µm, cylindrical or coniform, surface smooth, granular or perforate, mostly the antapical horn very small or faintly visible only, rarely as same size as or slightly larger than the apical horn, length 1.5-5µm, width at base 2-3µm, at the free end somewhat pointed. Thin wall and two-layers often hard to distinguish. Surface retirugose or irregularly reticulate, rugae usually developed on antapical region, reticulum on center or apical region, rugae or reticulum low, sometimes only faintly indicated on margins, meshes small, 1 x 1.4 µm ± • Often with one or two transverse folds at equatorial area, which may be a reflection of the cingulum. Inner body completely fills the pericoel, it is close to the periphragm, deviating only at the bases of the horns. Archeopyle apical, formed by the removal of an apical region. Operculum attached. A lot of specimens contain yellow-green nucleus-like bodies within shell.
Dimensions: Holotype, 65μm long, 55μm wide; apical horn 1.5μm long, base 2.5μm
Wide; antapical horn W long, base 6.5 μm wide; inner body 59 μm long, 59μm wide. Range: Shell 52-65μm long, 45- 62.5μm wide; inner body 45-60μm long, 54-62 µm wide. Measured 23 specimens.
Comparison: This species differs from other ones of the subgenus in the presence of a retirugae on periphragm. It resembles closely Pseuqokomewuia (Condocorpidia) retirugosa of the another subgenus in ornamentation, from which it differs in the possession of the antapical horn.
Occurrence: The Second member (Oligocene) of Yongning Group; Shangsi County, Guangxi.
Holotype: He Chengquan, 1980, pl.1, fig.7
Age: Oligocene
Original description (He Chengquan, 1980)
Fusiform to rhomboidal in outline with one short apical and one antapical horns. Usually the apical horn rather strong, length 2.5-7 µm, width at base 3-10 µm, cylindrical or coniform, surface smooth, granular or perforate, mostly the antapical horn very small or faintly visible only, rarely as same size as or slightly larger than the apical horn, length 1.5-5µm, width at base 2-3µm, at the free end somewhat pointed. Thin wall and two-layers often hard to distinguish. Surface retirugose or irregularly reticulate, rugae usually developed on antapical region, reticulum on center or apical region, rugae or reticulum low, sometimes only faintly indicated on margins, meshes small, 1 x 1.4 µm ± • Often with one or two transverse folds at equatorial area, which may be a reflection of the cingulum. Inner body completely fills the pericoel, it is close to the periphragm, deviating only at the bases of the horns. Archeopyle apical, formed by the removal of an apical region. Operculum attached. A lot of specimens contain yellow-green nucleus-like bodies within shell.
Dimensions: Holotype, 65μm long, 55μm wide; apical horn 1.5μm long, base 2.5μm
Wide; antapical horn W long, base 6.5 μm wide; inner body 59 μm long, 59μm wide. Range: Shell 52-65μm long, 45- 62.5μm wide; inner body 45-60μm long, 54-62 µm wide. Measured 23 specimens.
Comparison: This species differs from other ones of the subgenus in the presence of a retirugae on periphragm. It resembles closely Pseuqokomewuia (Condocorpidia) retirugosa of the another subgenus in ornamentation, from which it differs in the possession of the antapical horn.
Occurrence: The Second member (Oligocene) of Yongning Group; Shangsi County, Guangxi.