© 2018

The Indian Paleogene

  • Sunil Bajpai
  • Satish C. Tripathi
  • Vandana Prasad

Part of the Society of Earth Scientists Series book series (SESS)

Table of contents

  1. Front Matter
    Pages i-x
  2. V. K. Srivastava, B. P. Singh, A. Patra
    Pages 167-185
  3. Tarun Koley, Amitava Lahiri, K. M. Wanjarwadkar, C. S. Anju
    Pages 249-262
  4. Patrali Sinha, Kalyan Halder
    Pages 293-308
  5. Y. Raghumani Singh, Umarani Sijagurumayum, B. P. Singh
    Pages 309-327

About this book


This unique book provides a concise account of Indian Paleogene and presents a unified view of the Paleogene sequences of India. The Paleogene, comprising the early part of the Cenozoic Era, was the most dynamic period in the Earth’s history with profound changes in the biosphere and geosphere. The period spans ~42 million years, beginning  from post- K/T mass extinction event at ~65 Ma and ending at ~23 Ma, when the first Antarctic ice sheet appeared in the Southern Hemisphere.  The early Paleogene (Paleocene–Eocene) has been considered a globally warm period, superimposed on which were several transient hyperthermal events of extreme warmth. Of these, the Palaeocene Eocene Thermal Maxima (PETM) boundary interval is the most prominent extreme warming episode, lasting 200 Ka. PETM is characterized by 2–6‰ global negative carbon isotope excursion. The event coincided with the Benthic Extinction Event (BEE) in deep sea and Larger Foraminifera Turnover (LFT) in shallow seas. Rapid ~60–80 warming of high latitudinal regions led to major faunal and floral turnovers in continental, shallow-marine and deep-marine areas. The emergence and dispersal of mammals with modern characteristics, including Artiodactyls, Perissodactyls and Primates (APP), and the evolution and expansion of tropical vegetation are some of the significant features of the Paleogene warm world.

In the Indian subcontinent, the beginning and end of the Paleogene was marked by various events that shaped the various physiographic features of the Indian subcontinent. The subcontinent lay within the equatorial zone during the earliest part of the Paleogene. Carbonaceous shale, coal and lignite deposits of early Eocene age (~55.5–52 Ma) on the western and north-eastern margins of the Indian subcontinent are rich in fossils and provide information on climate as well as the evolution and paleobiogeography of tropical biota. Indian Paleogene deposits in the India–Asia collision zone also provide information pertaining to the paleogeography and timing of collision. Indian Paleogene rocks are exposed in the Himalayan and Arakan mountains; Assam and the shelf basins of Kutch–Saurashtra, Western Rajasthan; Tiruchirappalli–Pondicherry and Andaman and, though aerially limited, these rocks bear geological evidence of immense importance.


Andaman-Nicobar arc Nummulites Planktonic Foraminifera Oligocene climatic transition Palaeocene Eocene Thermal Maxima Nanofossiles

Editors and affiliations

  • Sunil Bajpai
    • 1
  • Satish C. Tripathi
    • 2
  • Vandana Prasad
    • 3
  1. 1.Birbal Sahni Institute of PalaeosciencesLucknowIndia
  2. 2.Geological Survey of IndiaHyderabadIndia
  3. 3.Birbal Sahni Institute of PalaeosciencesLucknowIndia

Bibliographic information

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