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Impagidinium rarum
Original desciption (Kar et al., 1972):
Gonyaulacysta? rara sp. nov.
PI. 1, Figs. 4-5
Holotype - PI. 1, Fig. 4, Size 60 fL, Slide No. 3674.
Type locality -Damalgiri, Garo Hills, Assam.
Diagnosis - Oval to subcircular, 60-80 μ, apical appendages well recognizable. Archaeopyle precinguJar, plates mostly indistinct.
Description - Cyst mostly oval with unequally broad lateral ends. Antapical appendages 10-16 μ long, blunt or slightly tapering. Equatorial plates distinct in some specimens. Sutures slightly raised, laevigate. Archaeopyle rhomboidal to rectangular in shape, antapical appendages not observed in most specimens.
Comparison - Gonyaulacysta palla Sarj. (1966) resembles the present species in shape and in apical appendage but is distinguished by its distinct tabulation. G. whitei Sarj. (1966) also approximates the present specimens in the nature of blunt apical appendage but is readily separated by its nature of the plate structure.
Gonyaulacysta? rara sp. nov.
PI. 1, Figs. 4-5
Holotype - PI. 1, Fig. 4, Size 60 fL, Slide No. 3674.
Type locality -Damalgiri, Garo Hills, Assam.
Diagnosis - Oval to subcircular, 60-80 μ, apical appendages well recognizable. Archaeopyle precinguJar, plates mostly indistinct.
Description - Cyst mostly oval with unequally broad lateral ends. Antapical appendages 10-16 μ long, blunt or slightly tapering. Equatorial plates distinct in some specimens. Sutures slightly raised, laevigate. Archaeopyle rhomboidal to rectangular in shape, antapical appendages not observed in most specimens.
Comparison - Gonyaulacysta palla Sarj. (1966) resembles the present species in shape and in apical appendage but is distinguished by its distinct tabulation. G. whitei Sarj. (1966) also approximates the present specimens in the nature of blunt apical appendage but is readily separated by its nature of the plate structure.