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Cyclopsiella angusta
Cyclopsiella angusta He Chengquan, 1991
Acritarch
Holotype: He Chengquan, 1991, pl.53, fig.12
Age: Paleocene
Description from He Chengquan, 1991, translated by Suning Hou, 07-01-2019
Description Embossed yellowish green, the wall consists of two layers. The inner layer of about 1μm, constitute a clear central body, the outline of a square circle nearly round, slightly longer than the width or close to each other, the surface with short wrinkles and particles. Outer membranous, surface nearly Smooth, narrow and uniform width around the central body with sharply thickened edges (approx. 1μ m). The well and the central body together form a clear double profile with smooth outer contours that are sometimes crumpled and broken. At the top there is a circular opening with thickened edges. Lack of any indication of cingulum. The total length of 50-57μ, ID, width 49-56μm, the central body length 46-55μm, wide -50μm, membrane width 2-2. 5μm. 57μm, width 56μm, the central body length 55μm, width 50μm, film width 2-2.5μm, circular opening diameter of about 7μ, ID. This species is distinguished from Cyclopsiella granulata He et Li, 1981 by its narrow outer membrane, sharply thickened edges, clear double contour of the capsule, and ornamentation on the central body surface.
Yan and Wujiaxian Uruguay Qiati Zizm root group of the lower member.
Acritarch
Holotype: He Chengquan, 1991, pl.53, fig.12
Age: Paleocene
Description from He Chengquan, 1991, translated by Suning Hou, 07-01-2019
Description Embossed yellowish green, the wall consists of two layers. The inner layer of about 1μm, constitute a clear central body, the outline of a square circle nearly round, slightly longer than the width or close to each other, the surface with short wrinkles and particles. Outer membranous, surface nearly Smooth, narrow and uniform width around the central body with sharply thickened edges (approx. 1μ m). The well and the central body together form a clear double profile with smooth outer contours that are sometimes crumpled and broken. At the top there is a circular opening with thickened edges. Lack of any indication of cingulum. The total length of 50-57μ, ID, width 49-56μm, the central body length 46-55μm, wide -50μm, membrane width 2-2. 5μm. 57μm, width 56μm, the central body length 55μm, width 50μm, film width 2-2.5μm, circular opening diameter of about 7μ, ID. This species is distinguished from Cyclopsiella granulata He et Li, 1981 by its narrow outer membrane, sharply thickened edges, clear double contour of the capsule, and ornamentation on the central body surface.
Yan and Wujiaxian Uruguay Qiati Zizm root group of the lower member.