Abundance of spore tetrads in the early Triassic sediments of India and their significance
DOI:
https://doi.org/10.54991/jop.1988.1621Keywords:
Palynology, Spore tetrads, Lundbladispora, Densoisporites, Verrucosisporites, Raniganj Coalfield, Early Triassic (India)Abstract
A number of spore tetrads with variable ornamentation have been observed during the palynological study of Lower Panchet sediments (Early Triassic) of the Raniganj Coalfield. They are either cingulate (ornamented or smooth) or simple verrucose spores, and can be attributed to Lundbladispora, Densoisporites and Verrucosisporites. The abundance of tetrads in the assemblage may be assigned to the diminishing effect of callase due to change in the climate. This perhaps resulted into the non-dissolution of the callose-wall which holds the spores together in a tetrad.
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Banerji J & Maheshwari HK 1975. Palynomorphs from the Panchet Group exposed in Sukri River, Auranga Coalfield, Bihar. Palaeobotanist 22(2): 158-170.
Hennelly JPF 1958. Spores and pollen from Permian- Triassic transition, N.S.W. Proc. Linn. Soc. N.S.W. 83: 363-369.
Heslop-Harrison J 1973. Pollen: development and physiology. London, Butterworth.
Potonié R & Lele KM 1961. Studies in the Talchir flora of India-Sporae dispersae from the Talchir-bed of South Rewa Gondwana Basin. Palaeobotanist 8(1): 22-37.
Visscher H 1966. Palaeobotany of the Mesophytic IlI. Plant III. Plant microfossils from the Upper Bunter of Hengelo, the Netherlands. Acta bot. neerl 15: 316-375.
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