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Leberidocysta scabrata
Leberidocysta? scabrata (Jain and Taugourdeau-Lantz, 1973) Stover and Evitt, 1978; Emendation: Khowaja-Ateequzzaman and Garg, 2004a, p.13–14.
NOW Ovoidinium. Originally Hexagonifera, subsequently Leberidocysta?, thirdly Hexagonifera?, fourthly (and now) Ovoidinium.
Stover and Evitt, 1978, p.60) considered this to be a provisionally accepted species of Leberidocysta. Mehrotra and Sarjeant, 1984, retained this species in Hexagonifera Cookson and Eisenack, 1961. Lentin and Williams, 1985, retained it in Leberidocysta.
Holotype: Jain and Taugourdeau-Lantz, 1973, pl.4, fig.11
Age: Early Cretaceous
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Emendation (Khowaja-Ateequzzaman and Garg, 2004a)
1973 hexagonifera scrabata Jain & Taugourdeau-Lantz: 64, pl. 4, figs 11-12
1977 H. scrabata Jain & Taugourdeau-Lantz in Jain : 179, pl. 4, fig. 46
1978 Leberidocysta ? scrabata (Jain & Taugourdeau-Lantz) Stover & Evitt : 60
Emended diagnosis : Cyst spherical to sub-spherical, without apical or antapical horns ; proximate, two-layered ; periphragm spnongeous, fibre-like covering extending 4-6 µm beyong shell, variably develeoped, endophragm thick, about 4-5 µm, scarbrate ; endophragm and periphargm appressd, sometimes periphargm covers endophragm loosely, leaving irregularly developed pericoels; paratabulation indicated by archeopyle alone and occasionally by poarasutural thinning, archeopyle combination type 4A31, with hexa 2a, operculum simple, free or attached along the archeopyle suture 1’ –as; cyst size range 50-80 µm.
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NOW Ovoidinium. Originally Hexagonifera, subsequently Leberidocysta?, thirdly Hexagonifera?, fourthly (and now) Ovoidinium.
Stover and Evitt, 1978, p.60) considered this to be a provisionally accepted species of Leberidocysta. Mehrotra and Sarjeant, 1984, retained this species in Hexagonifera Cookson and Eisenack, 1961. Lentin and Williams, 1985, retained it in Leberidocysta.
Holotype: Jain and Taugourdeau-Lantz, 1973, pl.4, fig.11
Age: Early Cretaceous
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Emendation (Khowaja-Ateequzzaman and Garg, 2004a)
1973 hexagonifera scrabata Jain & Taugourdeau-Lantz: 64, pl. 4, figs 11-12
1977 H. scrabata Jain & Taugourdeau-Lantz in Jain : 179, pl. 4, fig. 46
1978 Leberidocysta ? scrabata (Jain & Taugourdeau-Lantz) Stover & Evitt : 60
Emended diagnosis : Cyst spherical to sub-spherical, without apical or antapical horns ; proximate, two-layered ; periphragm spnongeous, fibre-like covering extending 4-6 µm beyong shell, variably develeoped, endophragm thick, about 4-5 µm, scarbrate ; endophragm and periphargm appressd, sometimes periphargm covers endophragm loosely, leaving irregularly developed pericoels; paratabulation indicated by archeopyle alone and occasionally by poarasutural thinning, archeopyle combination type 4A31, with hexa 2a, operculum simple, free or attached along the archeopyle suture 1’ –as; cyst size range 50-80 µm.
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