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Archeotectatum reticulatum
From Fensome et al., 2019:
Archeotectatum reticulatum Khowaja-Ateequzzaman and Jain, 1992, p.142, pl.4, fig.5; pl.6, fig.8. Holotype: Khowaja-
Ateequzzaman and Jain, 1992, pl.4, fig.5. Age: Hauterivian–Barremian.
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Original description: [Khowaja-Ateequzzaman and Jain, 1992, p. 142]:
Archeotectatum reticulatum sp. nov.
Pl. 4, fig. 5; Pl. 6, fig. 8
Holotype – Pl. 4, fig. 5; slide no. BSIP 10149.
Stratum & type locality – 441.2 - 444.2 m, bgl., (Conventional core), Puduvoyal bore-hole, Palar basin, Tamil Nadu, southern India.
Diagnosis – Cyst proximate, subspherical to rhomboidal with a short apical protuberance and a rounded antapex; no parasutural features; autophragm thick, spongy, reticulate; archeopyle precingular, type P (3'' only), operculum free.
Description
Shape – Cyst subspherical to rhomboidal, epicyst slightly elongate and tapering towards apex with a short apical protuberance, antapex rounded.
Wall relationship – Autophragm only.
Wall features – Autophragm thick and spongy with reticulation all over the cyst surface.
Paratabulation – Indicated by archeopyle alone, rarely with a week paracingulum.
Archeopyle – Precingular, type P (3'' only), broad operculum free.
Dimensions Holotype Range
Size of cyst 66 X 60 µm 60-75 X 55-65 µm
Comparison – Archeotectatum reticulatum sp. nov. Differs from the monotypic species of the genus A. sarjeantii Habib 1972, in having reticulate autophragm.
Archeotectatum reticulatum Khowaja-Ateequzzaman and Jain, 1992, p.142, pl.4, fig.5; pl.6, fig.8. Holotype: Khowaja-
Ateequzzaman and Jain, 1992, pl.4, fig.5. Age: Hauterivian–Barremian.
---------------------------------------------------------------------------------------------------
Original description: [Khowaja-Ateequzzaman and Jain, 1992, p. 142]:
Archeotectatum reticulatum sp. nov.
Pl. 4, fig. 5; Pl. 6, fig. 8
Holotype – Pl. 4, fig. 5; slide no. BSIP 10149.
Stratum & type locality – 441.2 - 444.2 m, bgl., (Conventional core), Puduvoyal bore-hole, Palar basin, Tamil Nadu, southern India.
Diagnosis – Cyst proximate, subspherical to rhomboidal with a short apical protuberance and a rounded antapex; no parasutural features; autophragm thick, spongy, reticulate; archeopyle precingular, type P (3'' only), operculum free.
Description
Shape – Cyst subspherical to rhomboidal, epicyst slightly elongate and tapering towards apex with a short apical protuberance, antapex rounded.
Wall relationship – Autophragm only.
Wall features – Autophragm thick and spongy with reticulation all over the cyst surface.
Paratabulation – Indicated by archeopyle alone, rarely with a week paracingulum.
Archeopyle – Precingular, type P (3'' only), broad operculum free.
Dimensions Holotype Range
Size of cyst 66 X 60 µm 60-75 X 55-65 µm
Comparison – Archeotectatum reticulatum sp. nov. Differs from the monotypic species of the genus A. sarjeantii Habib 1972, in having reticulate autophragm.