Arindam Chakraborty

Arindam Chakraborty
Academia Sinica · Institute of Earth Sciences

M.Sc. (Marine Biology), Ph.D. (Botany)
Marine micropaleontologist with a focus on unique mixed carbonate-siliclastic environments.

About

39
Publications
11,153
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
105
Citations
Introduction
Calcareous nannofossils, diatoms, biostratigraphy, Micropalaeontology, Evolutionary Biology
Additional affiliations
March 2019 - February 2022
Birbal Sahni Institute of Palaeobotany
Position
  • Research Associate
Description
  • Neogene climate evolution of Andaman and Nicobar Islands
November 2017 - February 2019
Birbal Sahni Institute of Palaeobotany
Position
  • PostDoc Position
Description
  • Palaeoclimate of Northern Indian Ocean
February 2013 - October 2017
Birbal Sahni Institute of Palaeobotany
Position
  • Diversity and Palaeoecology of neogene sequences of A & N islands
Education
March 2013 - October 2017
Birbal Sahni Institute of Palaeobotany
Field of study
  • Marine Micropalaeontology
August 2009 - May 2011
Pondicherry University
Field of study
  • Marine Biology
May 2006 - May 2009
Jiwaji University
Field of study
  • Botany, Biotechnology, Chemistry

Publications

Publications (39)
Article
Full-text available
Neogene radiolaria from late Miocene sediments of Andaman and Nicobar Islands
Article
Full-text available
Tidal variations of phytoplankton were studied at two stations i.e., Station - 1 (Science Centre) and Station - 2 (Junglighat Bay) during the period of December 2010 to February 2011 in the coastal waters of South Andaman Islands, India. Phytoplankton biomass (Chlorophyll-a) was observed low (avg. 0.02- 0.1 mg m-3) in the stations during the sampli...
Article
Full-text available
The present study deals with the diversity of phytoplankton from two selected stations, (Station 1: Junglighat and Station 2: Science Centre) during December 2010 to February 2011 in the coastal waters of Port Blair, South Andaman. Special emphasis was given to visualise the phytoplankton assemblages of the selected stations during low tide and hig...
Article
Full-text available
The 25th Indian colloquium on micropa-laeontology and stratigraphy was organized recently. The principal themes of the silver jubilee event were: recent developments in micropalaeontology; advances in micropalaeontological studies of Foraminifera, Radiolarians, Ostracods, Bryozoa, Calcareous Algae, Diatoms, Nannoplanktons, Dinoflagellates, paly-nol...
Article
A detailed study on radiolarian biostratigraphy and paleoecology has been carried out from three outcrops on Havelock Island, belonging to the Ritchie's Archipelago of Andaman and Nicobar Group of islands. Though most of the radiolarian taxa are moderately preserved, it was possible to demarcate an age ranging from late early to early middle Miocen...
Article
The oldest Asian record of alpheid shrimps (assigned to genus Alpheus) based on snapping claw fingertips from the Miocene (Aquitanian) Khari Nadi Formation (Kutch Basin, western India) reported herein extends the fossil record of Alpheidae from Asia by ~22 million years. An early Miocene (Aquitanian) age is estimated, based on the associated assemb...
Article
Relatively large specimens (6–12 μm long) of the nannolith Nicklithus amplificus are characteristic of the late Miocene, having evolved in NN11 from the typical Miocene species Orthorhabdus rugosus. The present study was performed in order to identify the earliest occurrence, and to examine the evolutionary lineage, palaeogeography and palaeoclimat...
Article
The present study has been carried out from the NGHP sediment core (NGHP-01-17A) of northeast Indian Ocean on different siliceous microfossils represented by diatoms and radiolarians along with calcareous nannofossils. Samples from the bottommost subunit Ic of the sediment core (684.09 mbsf to 369.62 mbsf) have been analysed. This contribution is t...
Article
Primary productivity is an important component of the ocean. Primary productivity data from Pliocene of northern Indian Ocean is lacking. Marine siliceous organisms viz., diatoms, radiolarians, silicoflagellates and siliceous sponges uptake dissolved silica (dSi) from the seawater. The biological uptake of dissolved silica (dSi) from the seawater a...
Article
Thirty-two planktonic foraminiferal taxa have been identified based on Bright Field microscopic study as well as Scanning Electron Microscopy on the samples collected from the outcrop adjacent to the type section of Neill West Coast Formation at Neil Island of Ritchie's Archipelago, northern Indian Ocean. The planktonic foraminiferal taxa belong to...
Article
Neogene sediments of the Andaman and Nicobar Islands in northern Indian Ocean, specifically the lower Miocene (Burdigalian) to lower Pliocene (Zanclean) sequences, were analysed for calcareous nannofossils that yielded well-preserved and diverse assemblages. The majority of samples contained stratigraphic marker taxa that allowed us to identify suc...
Article
The present contribution provides a study of calcareous nannofossils and siliceous microfossils from the Sawai Bay Formation on Car Nicobar Island, northern Indian Ocean. Two stratigraphically short sediment intervals near Sawai Bay have been examined. Qualitative and quantitative microfossil analyses show the Sawai Bay ‘A’ Section to be devoid of...
Article
In the Ritchie’s Archipelago of the Andaman group of islands (Northern Indian Ocean), Havelock Island is the largest one. The present study on diatoms has been carried out on three outcrops of Havelock Island situated in Kalapathar, South Point and Laccam Point localities. Samples collected from the three Neogene outcrops yielded poor to moderately...
Chapter
Global warming is the predominant cause for several changes in the present world. This warming is caused mainly by the accumulation of greenhouse and other harmful gases in the atmosphere. In this scenario, crop production has seen a major challenge. Some of the agricultural problems are caused due to the rise in human population, climate change, u...
Article
In the present study from the late Pliocene of Neill West Coast Formation, Neil Island, serpulid tubes assignable to Ditrupa gracillima Grube have been identified with the help of tube morphological (light microscopy) and ultrastructural (SEM) studies. This is the first record of the species from the late Pliocene of India. The outer layer of D. gr...
Article
Microfossil assemblages and lithological variations of the marine Cretaceous-Palaeocene (Danian) self succession of the Cauvery Basin, southern India has been a matter of attraction for the geoscientists and palaeontologists since the mid-nineteenth century. As a matter of fact, it has provided world class data on the invertebrates from the mid Cre...
Article
Full-text available
Meeting Report: 12th International Symposium on Fossil Algae, Lucknow, India - September 16-18, 2019
Book
Full-text available
Abstract volume of 12th International Symposium on Fossil Algae
Article
Comparative morphology and systematics has been an essential tool for research in biological science and evolutionary biology, but with rapid integration of molecular techniques into systematics and phylogenetics, the role of morphological attributes in evolutionary biology and taxonomy has become debatable. Scientists have gradually become more in...
Research
This paper provides an overview of stable isotope analysis (H, C, N, O, Si) of the macro-and microscopic remains from aquatic organisms found in lake sediment records and their application in (palaeo)envi-ronmental science. Aquatic organisms, including diatoms, macrophytes, invertebrates, and fish, can produce sufficiently robust remains that prese...
Article
In the Havelock Island of the Ritchie’s Archipelago (northeastern Indian Ocean), two lithological successions viz., the Inglis and Long formations, are exposed. Chronostratigraphically, the Havelockian Regional Stage has been named on this island for the sediments of both the formations. Based on previous planktonic foraminiferal biostratigraphy, t...
Article
The occurrence of a diverse range of conifers and bennettitales is characteristic of the macroflora from the Early Cretaceous of the Rajmahal Basin, India. In the present paper two new conifer taxa assigned to the families Cupressaceae and Podocarpaceae are described from the intertrappean sediments of the Rajmahal Formation in Jharkhand State. The...
Article
Full-text available
Taxonomic analysis of fresh water phytoplankton based on bright field microscopy and SEM studies is yet to be done in depth that may elucidate a number of new taxa. The present study on the assemblage of fresh water phytoplankton is focused to interpret the ecological condition of the studied water body of Bankura District in West Bengal. Phytoplan...
Thesis
The Ph.D. thesis work hovers on a first comprehensive study on the diversity and palaeoecology of various benthic and planktonic, siliceous and calcified microfossils from the Neogene outcrops at different islands of Andaman and Nicobar Group. Amongst the two islands of Ritchie’s Archipelago the three outcrops of Havelock Island yielded moderately...
Article
Petrographic thin section analysis of the samples collected from the type section of Neil West Coast Formation, situated in the west coast of Neil Island yielded moderately preserved coralline red algae, benthic and planktic foraminifers, coral fragments, echinoid spines and gastropod shells. The coralline red algae are represented by both non-geni...
Article
The present paper deals with the occurrence of a Halimeda bioherm facies represented by five different forms of the genus. The halimedaceans have been identified by thin section analysis of limestones from the middle Miocene (Serravallian) of the Butler Bay Section, Little Andaman Island (Hut Bay), India. All these forms are reported herein for the...
Article
The late Miocene (Tortonian) diatoms in 21 outcrop samples from Neil Island, Andaman and Nicobar Islands were investigated with eighty two planktonic and benthic taxa belonging to 35 genera. Principal Component Analysis reveals the existence of two distinct groups; samples dominated by Thalassionema nitzschioides and Thalassiothrix longissima, belo...
Conference Paper
Full-text available
Lithological variations and fossil assemblages of the marine Cretaceous–Palaeocene (Danian) self succession of the Cauvery Basin, southern India has been a matter of attraction for the geoscientists and palaeontologists since the mid-nineteenth century. As a matter of fact, it has provided world class data on the invertebrates from the mid Cretaceo...
Conference Paper
Miocene diatoms from the Havelock Island of Ritchie’s Archipelago Group, South Andaman with interpretation on Palaeoenvironment Arindam Chakraborty, Abhijit Mazumder & Amit K. Ghosh Birbal Sahni Institute of Palaeobotany, 53 University Road Lucknow-226 007, Uttar Pradesh, INDIA E-mail: flywidari@gmail.com, abhijit.mazumder.email@gmail.com, akghos...
Conference Paper
TIDAL VARIATION OF PHYTOPLANKTONS IN SOUTH ANDAMAN AND ITS IMPLICATIONS ON THE FUTURE CLIMATE CHANGE Arindam Chakraborty1,2, Gadi Padmavati2, Amit K Ghosh1 Email: flywidari@gmail.com 1. Birbal Sahni Institute of Palaeobotany, Lucknow-226007, Uttar Pradesh, India. 2. Department of Ocean studies and Marine Biology, Pondicherry University, Brooksha...
Conference Paper
Meiofaunal community composition from Rushikulya Coastal region: An Ecologically Important Ground for Olive Ridley Turtles Meiofauna are used as models in assessing the impacts of changes (natural or anthropogenic) in an aquatic ecosystem. A major but unprotected ecosystem of Olive Ridley (Lepidochelys olivacea) turtle’s nesting site in Rushik...

Questions

Questions (13)
Question
How can we interpolate the age of marker microfossils according to new time scale.
Eg. if the previous research papers or standard zonation charts has used older timescale then how can we use that particular microfossil in the new time scale.
When we are working with multiple microfossils then we try to follow a single timescale (the most recent one) so this is required.
Question
probably the sediments are from eocene oligocene deposits of Indian ocean region and the species are dominated throughout the section.
Question
Please provide me the ecological preferences for the following species:
Triceratium cellulosum, Triceratium distinctum and Triceratium favus
Please provide me in respect of Planktonic or benthic.  

Network

Cited By

Projects

Projects (4)
Project
Benthic biota for interpreting the past climate of tropical latitudes
Project
NECLIME is an open international network of scientists working on Cenozoic climate evolution and related changes of continental ecosystems. During the past 65 million years of Earth history, globally warmer-then-present conditions prevailed in a world with almost modern paleogeography. These timespans represent promising case studies for anticipated future scenarios. Within the NECLIME network, we aim to combine data on past climate change and its environmental impact for large-scale reconstructions. NECLIME research activities comprise paleoclimate reconstructions, including atmospheric CO₂ and ecosystem analysis using multiple quantitative methods on various primarily continental proxies (plants; vertebrates; invertebrates; geochemistry and geological proxies). Complementing model studies are employed to assess connections and processes driving ocean, atmosphere and biosphere at global and regional scales. NECLIME was established in 1999 with the aim to understand Neogene trends across Eurasia. This basic idea quickly and constantly expanded to a global interest and a wider stratigaphical frame. The steadily growing NECLIME network with currently around 140 members in 34 countries is coordinated by a team of researchers and an advisory board. NECLIME holds annual conferences and workshops and administers working groups bringing forward scientific exchange, joint projects, and the integration of research data. For more information go to www.neclime.de