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Deflandrea oebisfeldensis ssp. longicornis
Deflandre oebisfeldensis ssp. longicornis He Chengquan, 1991
Holotype: He Chengquan, 1991, pl.31, fig.11
Age: Paleocene
Description from He Chengquan, 1991, translated by Suning Hou, 07-01-2019
Description: cyst ventral-dorsal flattened, elongated pentagon outline,. The epicyst is inverted funnel-shaped, both sides at the base of the apical horn look like "shoulders", the apical horn is long (37 .5μm), tapered. The hypocyst is trapezoidal, laterally concave, base nearly straight, with two long antapical horns, nearly equal, conical, length (measured from the inner body) 50μm, roughly parallel to each other, far apart,(65μm). The waist is smooth, no obvious lateral convex. The cingulum is at the equatorial position, annular, 7 .5μm wide, decorated with fine ridges on the edges. The sulcus is limited to the lower cyst, fuzzy outline. The outer surface is fine granular, with wrinkles. Inner body oval, no obvious ornamentation on the surface; It clearly separates from the outer wall. The archeople is intercalary, oval-shaped outline, width larger than length. The operculum attached to the archeopyle edge. Cyst length 150-152μm, width 80-85μm, inner body length 55-67μm, width 70--80μm (measured 2 tablets); positive chess length 152μm, width 80μm, Inner body length 55μm, width 70μm.
Comparison: This species differs from Deflandrea oebisfeldensis subsp. Angustata, in 2 long antapical horns and no stinging ornamentation on the outer wall.
Location and stratigraphy: Wuchaxian County Basebulak and Urughchat; Zimgen fm , lower member.
Holotype: He Chengquan, 1991, pl.31, fig.11
Age: Paleocene
Description from He Chengquan, 1991, translated by Suning Hou, 07-01-2019
Description: cyst ventral-dorsal flattened, elongated pentagon outline,. The epicyst is inverted funnel-shaped, both sides at the base of the apical horn look like "shoulders", the apical horn is long (37 .5μm), tapered. The hypocyst is trapezoidal, laterally concave, base nearly straight, with two long antapical horns, nearly equal, conical, length (measured from the inner body) 50μm, roughly parallel to each other, far apart,(65μm). The waist is smooth, no obvious lateral convex. The cingulum is at the equatorial position, annular, 7 .5μm wide, decorated with fine ridges on the edges. The sulcus is limited to the lower cyst, fuzzy outline. The outer surface is fine granular, with wrinkles. Inner body oval, no obvious ornamentation on the surface; It clearly separates from the outer wall. The archeople is intercalary, oval-shaped outline, width larger than length. The operculum attached to the archeopyle edge. Cyst length 150-152μm, width 80-85μm, inner body length 55-67μm, width 70--80μm (measured 2 tablets); positive chess length 152μm, width 80μm, Inner body length 55μm, width 70μm.
Comparison: This species differs from Deflandrea oebisfeldensis subsp. Angustata, in 2 long antapical horns and no stinging ornamentation on the outer wall.
Location and stratigraphy: Wuchaxian County Basebulak and Urughchat; Zimgen fm , lower member.