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<p>This research proposes a novel palaeocommunity reconstruction method using quantitative palynological data from the Permian (Asselian to Changhsingian) strata of Indian coal-bearing Gondwana basins. This approach is the classification of palynomorphs into ecologically clusters, termed Palynomorph Ecogroups (PEGs), which reflect distinct plant communities and their environment. These include groups indicative of stress-tolerant, riparian, lake/pond, Glossopterid-dominated, upland, lowland, and wide habitats, as well as communities adapted to adverse climates. Sequential analysis of these PEGs across stratigraphic intervals reveals dynamic shifts in ecological composition, closely tied to changes in hydrological regimes and climate. The observed transitions suggest a climatic shift from cold to cool temperate conditions during the early Permian (Asselian–Artinskian), continuing toward a warmer, humid-temperate phase in the Late Permian (Artinskian–Changhsingian). This ecogroup-based model offers a refined approach for interpreting palaeoenvironments in Gondwanan settings, and underscores the utility of palynomorph distribution as a proxy for reconstructing ecological transformations in deep time.</p>

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Palynomorph-based ecological model for late paleozoic successions of indian coal deposits: a focus on the Godavari Valley Coalfield

  • 期刊论文

  • 发表日期：

    2026年1月8日

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  • Neha Aggarwal

摘要

This research proposes a novel palaeocommunity reconstruction method using quantitative palynological data from the Permian (Asselian to Changhsingian) strata of Indian coal-bearing Gondwana basins. This approach is the classification of palynomorphs into ecologically clusters, termed Palynomorph Ecogroups (PEGs), which reflect distinct plant communities and their environment. These include groups indicative of stress-tolerant, riparian, lake/pond, Glossopterid-dominated, upland, lowland, and wide habitats, as well as communities adapted to adverse climates. Sequential analysis of these PEGs across stratigraphic intervals reveals dynamic shifts in ecological composition, closely tied to changes in hydrological regimes and climate. The observed transitions suggest a climatic shift from cold to cool temperate conditions during the early Permian (Asselian–Artinskian), continuing toward a warmer, humid-temperate phase in the Late Permian (Artinskian–Changhsingian). This ecogroup-based model offers a refined approach for interpreting palaeoenvironments in Gondwanan settings, and underscores the utility of palynomorph distribution as a proxy for reconstructing ecological transformations in deep time.