I was initially interested in fossil nautiloids (Mollusca) and earned my Ph. D. from Jadavpur University, Kolkata in 2003 on the Jurassic nautiloids from Kutch, Gujarat. In my dissertation, a comprehensive taxonomy of the Jurassic nautiloids and their evolutionary palaeobiological aspects had been studied.
Recently, I am trying to broaden my horizon by including other fossil molluscs (classes Bivalvia and Gastropoda) from other times (Cenozoic) and other basins (such as Himachal Pradesh, Gujarat (Saurashtra), Manipur, Kerala). More recent studies have concentrated on the molluscan fauna from the Cenozoic of Kutch. Modern taxonomic treatment of this fauna, especially from the Early Palaeogene, is now in progress.
My long-term research goals include:
1. A study of the palaeobiographical evolution of the Cenozoic basins of India
2. Palaeoecological study of selected Cenozoic basins of India
3. Studies on molluscan diversity changes through the Cenozoic
4. Rigorous systematic and phylogenetic studies of a number of marine mollusc groups
5. Monographic revisionary treatments of some selected fossil molluscs
B. Sc. (Geology Hons.), Jadavpur University, Kolkata, 1990
M. Sc. (Applied Geology), Jadavpur University, Kolkata, 1992
Ph. D. (Geology) Jadavpur University, Kolkata, 2003
Hailed from a modest Bengali ambience of a suburb of Kolkata. Got B. Sc. and M. Sc. degrees from Jadavpur University (JU), Kolkata. Thereafter, pursued research work at JU; continued part time after getting a job at the Geological Survey of India, Kolkata and earned Ph. D. Had been engaged in teaching in West Bengal Educational Services for over fourteen years and served in two colleges before joining this university.
Research / Administrative Experience+
My research involves study of systematics and evolutionary palaeobiology of marine molluscs.
I intend to make comprehensive interdisciplinary studies on some important fossil bearing sedimentary successions of India to unravel their depositional history.
Teaching / Other Experience+
For the last about fifteen years I have been engaged in imparting state-of-the-art knowledge on “Invertebrate Palaeontology” and “Principles of Palaeontology” to undergraduate and post-graduate students. I have also dealt occasionally with courses on “Vertebrate Palaeontology”, “Micropalaeontology”, “Palaeobotany”, “Phanerozoic Stratigraphy of India” and “Principles of Stratigraphy”.
I have imparted training on basics of Palaeontology to students from 10+2 level as part of their course for Earth Science Olympiad.
I have delivered talks on important evolutionary aspects, such as, mass-extinction to students from different levels and people from other walks of life.
Post Graduate Supervision+
As part of the regular PG course I have supervised about 25 M. Sc. dissertations. A few students are pursuing research under my supervision.
Associate member of American Association of Petroleum Geologists (AAPG)
(1) Bardhan, S., Halder, K. and Jana, S. K. (1994) Earliest sexual dimporphism in Nautiloidea from the Jurassic of Kutch, India. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 193(3): 287-309.
(2) Halder, K. and Bardhan, S. (1996) The Oxfordian (Upper Jurassic) nautiloid fauna of Kutch, western India. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 201(1): 17-32.
(3) Halder, K. and Bardhan, S. (1996) The fleeting genus Cymatonautilus (Nautiloidea): new record from the Jurassic Chari Formation, Kutch, India. Canadian Journal of Earth Sciences, 33: 1007-1010.
(4) Gangopadhyay, T. K. and Halder, K. (1996) Significance of the first record of nautiloid from the Upper Cretaceous Bagh Group of rocks. Current Science, 70(6): 462-465.
(5) Halder, K. and Bardhan, S. (1997) On some new Late Bathonian paracenoceratids (Nautiloidea) from Kutch, India and their evolutionary and biostratigraphic implications. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, 1997(9): 543-561.
(6) Halder, K., Jana, S. K. and Bardhan, S. (1998) Ornamental polymorphism in Paracenoceras prohexagonum (Nautiloidea) from the Jurassic Chari sequence, Kutch, Gujarat. Indian Minerals, 52(1&2): 89-94.
(7) Bardhan, S. and Halder, K. (2000) Sudden origin of ribbing in Jurassic Paracenoceras (Nautiloidea) and its bearing on the evolution of ribbing in post-Triassic nautiloids. Historical Biology, 14: 153-168.
(8) Halder, K. (2000) Diversity and biogeographic distribution of Jurassic nautiloids of Kutch, India during the fragmentation of Gondwana. Journal of African Earth Sciences, 31(1): 175-185.
(9) Sengupta, S., Syed, R., Sarkar, S. and Halder, K. (2011). Nummulites Lamarck (Foraminifera) as substrate for other benthonic taxa: A case study from the Middle Eocene of western Kutch, Gujarat. Indian Journal of Geosciences, 65(4): 265-274.
(10) Halder, K. (2012). Cenozoic fossil nautiloids (Cephalopoda) from Kutch, western India. Palaeoworld, 21: 116-130.
(11) Halder, K. and Bano, S. (2014). Cenozoic Corbulidae (Bivalvia, Mollusca) from the Indian Subcontinent - palaeobiogeography and revision of three species from Kutch, India. Arabian Journal of Geosciences, DOI 10.1007/s12517-014-1362-6.
(12) Halder, K. and Sinha, P. (2014). Some Eocene Cerithioids (Gastropoda, Mollusca) from Kutch, Western India, and Their Bearing on Palaeobiogeography of the Indian Subcontinent. Paleontology Journal, vol. 2014, Art. ID 673469, http://dx.doi.org/10.1155/2014/673469.
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