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Rhombodinium elongatum ssp. spinale
Rhombodinium elongatum ssp. spinale He Chengquan, 1991
Holotype: He Chengquan, 1001, pl.40, fig.1
Age: Middle Eocene
Description from He Chengquan, 1991, translated by Suning Hou, 07-01-2019
Description: outline elongated pentagonal, apical horn quite developed, length 17 .5-35μm, there are particles or short spines on the top; The lateral horns are long, 16.5-40μm, usually 35-32μm , the end often has short spine processes, up to 2μm; Two antapical horns are generally unequal, left length 22-44μm, right length 15-25μm. Other features are the same as the description of the species. Cyst length 130-185μm, width 97.5-155μm, the inner body length 87 .5-105μm, width 72-97. 5μm (measured 9); the holotype length 155μm , Width 143μm, inner body length 87.5μm, width 80μm, apical horn length 25μm, left antapical horn length 40μm, right antapical horn length 15μm, lateral horn length 32.5μm .
Comparison: This subspecies differs from the last new subspecies in longer lateral horns and short rod-spine processes on the end .
Location and stratigraphy: Wucha County Basebulak; Wulagen fm.
Holotype: He Chengquan, 1001, pl.40, fig.1
Age: Middle Eocene
Description from He Chengquan, 1991, translated by Suning Hou, 07-01-2019
Description: outline elongated pentagonal, apical horn quite developed, length 17 .5-35μm, there are particles or short spines on the top; The lateral horns are long, 16.5-40μm, usually 35-32μm , the end often has short spine processes, up to 2μm; Two antapical horns are generally unequal, left length 22-44μm, right length 15-25μm. Other features are the same as the description of the species. Cyst length 130-185μm, width 97.5-155μm, the inner body length 87 .5-105μm, width 72-97. 5μm (measured 9); the holotype length 155μm , Width 143μm, inner body length 87.5μm, width 80μm, apical horn length 25μm, left antapical horn length 40μm, right antapical horn length 15μm, lateral horn length 32.5μm .
Comparison: This subspecies differs from the last new subspecies in longer lateral horns and short rod-spine processes on the end .
Location and stratigraphy: Wucha County Basebulak; Wulagen fm.