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  1. Article

    Vindhyan Akinites: An Indicator of Mesoproterozoic Biospheric Evolution

    A wide size range of rod-shaped, ellipsoidal akinites assignable to Archaeoellipsoides are reported from the Newari locality of the Mesoproterozoic Kheinjua Formation of the Semri Group, Vindhyan Supergroup. T...

    Purnima Srivastava in Origins of Life and Evolution of Biospheres (2005)

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    Article

    Trachyhystrichosphaera: An age-marker acanthomorph from the Bhander group, upper Vindhyan, Rajasthan

    A highly diversified, advanced and exceptionally well preserved microfossil assemblage, dominated by a planktic community, has been recorded from petrographic thin sections of chert belonging to the Sirbu Shal...

    Purnima Srivastava in Journal of Earth System Science (2009)

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    Chapter

    Morphological Changes in Microscopic–Megascopic Life and Stromatolites Recorded During Late Palaeoproterozoic–Neoproterozoic Transition: The Vindhyan Supergroup, India

    The Palaeoproterozoic to Neoproterozoic era (1,700–542 Ma) is a significant time of transition, reflecting major biotic events in the evolution of life at global level. This time has been marked by the dominat...

    Purnima Srivastava, Vinod Chandra Tewari in STROMATOLITES: Interaction of Microbes wit… (2011)

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    Article

    Is the recessional pattern of Himalayan glaciers suggestive of anthropogenically induced global warming?

    Following the Intergovernmental Panel on Climate Change report of 2001, a hype regarding the future of Himalayan glaciers, flooding of Indo-Gangetic plains and coastal areas and drying of glacially fed rivers ...

    Rameshwar Bali, K. K. Agarwal, Sheikh Nawaz Ali in Arabian Journal of Geosciences (2011)

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    Article

    Problematic fossils from the Palaeo-Neoproterozoic Vindhyan Supergroup, India

    Fossils of the Vindhyan Supergroup exhibit extensive diversity and variable biologic affinities represented by: bacteria, cyanobacteria, algae, fungi, acritarchs, metaphytes and metazoans (including members of...

    Purnima Srivastava in Arabian Journal of Geosciences (2012)