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Jainiella breviornata
From Fensome et al., 2019:
Jainiella breviornata Khowaja-Ateequzzaman and Garg, 1995, p.246–247, pl.1, figs.1–6. Holotype: Khowaja- Ateequzzaman and Garg, 1995, pl.1, figs.1–2. Age: Late Cretaceous.
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Original description: [Khowaja-Ateequzzaman and Garg, 1995]:
Jainiella breviornata sp. nov.
PI. 1. figs 1-6
Holotype -- Pl. 1 figs 1-2; Slide no. 10264; coordinates: 7.6 x 167; Trichinopoly Formation, Cauvery Basin. Upper Cretaceous.
Locality -- 0.5 km west of Kunnam Village, near Ariyalur, Tamil Nadu.
Diagnosis -- Cyst small, proximate; subspherical to oval; apex broadly obtuse; antapex with two unequally developed lobes separated by a concavity; no parasutural features; surface ornamentation mixed type with closely placed coarse grana and very small processes 0-2 m in height); archaeopyle intercalary, type 31; operculum free.
Derivation of name -- Latin term brevis meaning short with reference to the short ornamentation.
Description:
Shape: Subspherical to oval; apex broadly obtuse; antapex with two unequal lobes separated by a concavity.
Wall relatlonship : Autophragm only.
Wall features No parasutural features; surface ornamentation mixed type with features of low relief including coarse grana and very small
(1-2 μm high) processes.
Paratabulation : Indicated by archaeopyle alone.
Archaeopyle: Intercalary, type 3I; operculum free; opercular pieces (1a-3a) released independently, 1a and 3a are five sided whereas 2a is attenuated hexa type.
Paracingulum : Not discernible.
Parasulcus Not discernible.
Dimensions :
Holotype Range
Size of the cyst 50 x 44 μm 45-55 x 40-52 μm
Comparison -- Jainiella breviornata sp. nov differs from J. plenica (Islam) comb. nov. in being a proximate cyst having low relief ornamentation, that includes coarse grana and very small processes (1-2 μm high). J. plenica is a proximochorate cyst possessing numerous nontabular, thin, slender, solid, 3-10 μm high processes only.
Jainiella breviornata Khowaja-Ateequzzaman and Garg, 1995, p.246–247, pl.1, figs.1–6. Holotype: Khowaja- Ateequzzaman and Garg, 1995, pl.1, figs.1–2. Age: Late Cretaceous.
---------------------------------------------------------------------------------------------------
Original description: [Khowaja-Ateequzzaman and Garg, 1995]:
Jainiella breviornata sp. nov.
PI. 1. figs 1-6
Holotype -- Pl. 1 figs 1-2; Slide no. 10264; coordinates: 7.6 x 167; Trichinopoly Formation, Cauvery Basin. Upper Cretaceous.
Locality -- 0.5 km west of Kunnam Village, near Ariyalur, Tamil Nadu.
Diagnosis -- Cyst small, proximate; subspherical to oval; apex broadly obtuse; antapex with two unequally developed lobes separated by a concavity; no parasutural features; surface ornamentation mixed type with closely placed coarse grana and very small processes 0-2 m in height); archaeopyle intercalary, type 31; operculum free.
Derivation of name -- Latin term brevis meaning short with reference to the short ornamentation.
Description:
Shape: Subspherical to oval; apex broadly obtuse; antapex with two unequal lobes separated by a concavity.
Wall relatlonship : Autophragm only.
Wall features No parasutural features; surface ornamentation mixed type with features of low relief including coarse grana and very small
(1-2 μm high) processes.
Paratabulation : Indicated by archaeopyle alone.
Archaeopyle: Intercalary, type 3I; operculum free; opercular pieces (1a-3a) released independently, 1a and 3a are five sided whereas 2a is attenuated hexa type.
Paracingulum : Not discernible.
Parasulcus Not discernible.
Dimensions :
Holotype Range
Size of the cyst 50 x 44 μm 45-55 x 40-52 μm
Comparison -- Jainiella breviornata sp. nov differs from J. plenica (Islam) comb. nov. in being a proximate cyst having low relief ornamentation, that includes coarse grana and very small processes (1-2 μm high). J. plenica is a proximochorate cyst possessing numerous nontabular, thin, slender, solid, 3-10 μm high processes only.