Ph. D. (Sc.) in Geology, August 2017- August 2023 (Provisional Ph. D. Degree
awarded on 21.08.2023) – awarded by the University of Calcutta (Indian Statistical
Institute, Kolkata).
Title of the Ph. D. Thesis: Systematics, Diversity, Palaeobiogeography, and
Palaeoecology of Miocene gastropods of Dwarka Basin, Gujarat, India.
Supervisor: Dr. Shiladri Shekhar Das, Geological Studies Unit, Indian Statistical
Institute, Kolkata.
RESEARCH, TEACHING, or OTHER INTERESTS
Paleontology, Geology, Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics
Biostratigraphy, mineralogy and paleoenvironmental analysis of the Miocene Gaj Formation from the Dwarka Basin, western India Swagata Chaudhuri, Kanishka Bose, Koustav Chattopadhyay, Shiladri S. Das, Ajoy K. Bhaumik Geological Magazine, 2025 The Dwarka Basin in the Kathiawar Peninsula, western margin of the Indian subcontinent, offers crucial insights into marine sedimentation processes and faunal evolution during the Miocene epoch. This research employs a combination of biostratigraphy, microfacies analysis and geochemical data to examine the Gaj Formation, a major stratigraphic unit of the Dwarka Basin, with the aim of reconstructing the paleoclimatic and depositional conditions. Foraminiferal biostratigraphy suggests that the Gaj Formation ranges from the Aquitanian to the Langhian stage, with the intermediate Burdigalian stage comprising most of the succession. Microfacies analysis reveals that the formation was primarily deposited in shelf environments, influenced by regional tectonic and climatic factors. The fossil assemblages and morphological adaptations observed in foraminiferal shells provide clear evidence of the Middle Miocene Climatic Optimum (MMCO). Climate-driven global warming during this climatic phase caused morphological evolution (e.g., dwarfism) and decreased faunal diversity in response to environmental stress. This study also aims to reconcile discrepancies in stratigraphic classification in the basin through lithostratigraphic data and high-resolution faunal analyses. Results highlight the dynamic nature of marine depositional environments as impacted by global sea-level changes, regional tectonics and climatic fluctuations. The study foregrounds the importance of multi-proxy analyses in reconstructing complex depositional histories and Miocene climatic transitions and their effects on regional marine ecosystems.
A diverse early Miocene (Burdigalian) turritelline-dominated gastropod assemblage from the Dwarka Basin of Kathiawar Peninsula, western India Kanishka Bose, Shiladri Shekhar Das, Subhronil Mondal, Swagata Chaudhuri Journal of Paleontology, 2025 A diverse early Miocene (Burdigalian) turritelline-dominated assemblage (TDA) is documented from a single bed of the Nandana Member of the Gaj Formation, Dwarka Basin, western India. This study reports 42 gastropod species, including the description of four new species: ? Clelandella saurashtraensis n. sp., Jujubinus dwarkaensis n. sp., Cerithium bardhani n. sp., and Nassarius anisi n. sp. In addition, 30 species are discussed under open nomenclature. The TDA assemblage is notable for the high diversity among turritelline gastropods, with eight species identified across two genera, Turritella and Haustator. Petrographic studies and the foraminifera associations of Lockhartia sp., Miogypsina sp., Operculina sp., Quinqueloculina sp., and Ammonia sp., along with other foraminiferal groups such as nodosariids, milliolids, and rotalids, suggest that the TDA bed was deposited in tropical, warm, nutrient-rich, well-oxygenated conditions in subtidal–intertidal conditions. UUID: http://zoobank.org/a12f5cac-1293-40c3-b0fb-a0147d657514
A new species of Talantodiscus (Family Pleurotomariidae Swainson, 1840) from the Late Jurassic of the Kutch, Western India Sandip Saha, Shiladri S. Das, Subhronil Mondal, Kanishka Bose Journal of the Geological Society of India, 2024 Talantodiscus is a rare genus within the pleurotomariid gastropods represented by only seven species from nine different Mesozoic localities of New Zealand and Europe, appearing from the late Middle Triassic (Late Ladinian) to the Middle Jurassic (Bajocian) in the fossil record. In the present paper, we report a new species, i.e., Talantodiscus gujaratensis, from the topmost Tithonian bed of the Kutch Basin, western India. The new find extends the palaeobiogeographic range of the genus to the western India beside New Zealand and European localities. Also, the last appearance datum (LAD) of the genus is extended to the latest of the Jurassic (Tithonian).
Morphological conservatism of the family Naticidae (Gastropoda) through time: Potential causes and consequences Neha Sharma, Subhronil Mondal, Shiladri S. Das, Kanishka Bose, Sandip Saha Paleobiology, 2021 Taxonomic status of several members of the family Naticidae is extremely vague because of its simple shell morphology. Conventional taxonomic classification schemes suggest that most of the morphological characters tend to be homoplastic and exhibit convergence. Such morphological convergence complicates naticid taxonomy and makes it difficult to understand the evolutionary history of this group; several unrelated taxa are often misidentified as naticids, thereby exaggerating the actual diversity of this group. Here, we employ a standard landmark-based approach to understand the pattern of morphological evolution of this family. Ordination methods such as principal components analysis and canonical variate analysis were used to create morphospaces, and disparity was quantified using variance and range. Our results reveal that when naticids are compared with their sister taxon, Ampullinidae, the two families show significant differences in their average shapes, despite their superficial resemblances. Among naticids, although the mean shapes of the individual subfamilies are different, overall, the family Naticidae has displayed extreme morphological conservatism from the Jurassic to the Holocene. Interestingly, this conservatism has been unaffected by taxonomic changes—neither the extinction of the subfamily Gyrodinae nor the appearance of the subfamily Sininae affected this morphological conservatism. Naticids have always shown strong ecological preference toward an infaunal mode of life and strict behavioral selectivity in handling and preying upon infaunal organisms, and this ecological and behavioral conservatism could have enabled them to diversify without undergoing a change in their basic Bauplan.
An updated generic classification of Cenozoic pleurotomariid gastropods, with new records from the Oligocene and early Miocene of India Kanishka Bose, Shiladri S. Das, Subhronil Mondal Journal of Paleontology, 2021 Although taxonomically distinct, the Cenozoic pleurotomariids are the bottlenecked remnants of the Mesozoic members of the family in terms of morphology, with only conical forms surviving the end-Cretaceous mass extinction. Here, we propose an updated classification scheme for the Cenozoic representatives of this group, based on data from the entire Cenozoic pleurotomariid fossil record. We consider all conventional as well as several new characters so that this scheme can readily help to distinguish Cenozoic pleurotomariid genera. Following the new classification scheme, a revision of the generic status of Cenozoic species previously assigned to ‘Pleurotomaria’ Defrance, 1826 is presented.Only a few Cenozoic pleurotomariid gastropods have been reported from the Indian subcontinent. Here we report four species from the Oligocene of the Kutch Basin and the early Miocene (Burdigalian) of the Dwarka Basin of Gujarat, western India, of which two are described as new: Perotrochus bermotiensis n. sp., Entemnotrochus kathiawarensis n. sp., Entemnotrochus cf. E. bianconii, and Entemnotrochus? sp. 1.UUID: http://zoobank.org/89b6ff67-2834-477f-862b-67691104aca4
Observation on the life habits of windowpane oyster Placuna placenta from Gujarat Indian Journal of Geosciences, 2020
RECENT SCHOLAR PUBLICATIONS
Revised generic characterization of the Late Cretaceous Pleurotomariid Gastropods (Family Pleurotomariidae Swainson, 1840) with new records from the Cauvery Basin, southern India S Ghosh, K Bose, SS Das, RK Bera Cretaceous Research, 106337 , 2026 2026
New records of Nautiloidea from the lower Eocene marine succession of the Jaisalmer Basin, western India, and their environmental implications A Ghosh, K Bose, SS Das Palaeoworld, 201046 , 2025 2025
A diverse early Miocene (Burdigalian) turritelline-dominated gastropod assemblage from the Dwarka Basin of Kathiawar Peninsula, western India K Bose, SS Das, S Mondal, S Chaudhuri Journal of Paleontology 99 (6), 1303-1344 , 2025 2025
Biostratigraphy, mineralogy and paleoenvironmental analysis of the Miocene Gaj Formation from the Dwarka Basin, western India S Chaudhuri, K Bose, K Chattopadhyay, SS Das, AK Bhaumik Geological Magazine 162, e49 , 2025 2025 Citations: 1
A new species of Talantodiscus (Family Pleurotomariidae ) from the Late Jurassic of the Kutch, Western India S Saha, S S. Das, S Mondal, K Bose Journal of the Geological Society of India 100 (12), 1765-1772 , 2024 2024 Citations: 2
Global palaeobiogeographic distribution patterns of the Cenozoic pleurotomariid gastropods (Family: Pleurotomariidae Swainson, 1840) K Bose, SS Das, S Mondal Palaeobiodiversity and palaeoenvironments, 115-130 , 2024 2024 Citations: 2
Erratum: Miocene Stromboid Gastropods (Superfamily Stromboidea Rafinesque, 1815) from the Dwarka Basin, Western India and their Paleobiogeographic Implications K Bose, SS Das, S Saha Journal of the Geological Society of India 100 (2), 303-303 , 2024 2024
Miocene stromboid gastropods (superfamily Stromboidea Rafinesque, 1815) from the Dwarka Basin, Western India and their Paleobiogeographic implications K Bose, SS Das, S Saha Journal of the Geological Society of India 99 (11), 1491-1507 , 2023 2023 Citations: 3
Morphological conservatism of the family Naticidae (Gastropoda) through time: potential causes and consequences N Sharma, S Mondal, SS Das, K Bose, S Saha Paleobiology 47 (3), 487-502 , 2021 2021 Citations: 5
Substrate-controlled naticid gastropod drilling predation on recent barnacles from Chandipur, India and its Palaeontological implications S Mondal, A Maitra, K Bose, P Goswami, S Bardhan, S Mallick Historical Biology 33 (7), 1029-1042 , 2021 2021 Citations: 10
An updated generic classification of Cenozoic pleurotomariid gastropods, with new records from the Oligocene and early Miocene of India K Bose, SS Das, S Mondal Journal of Paleontology 95 (4), 763-776 , 2021 2021 Citations: 8
Two giant gastropods from the Miocene of Dwarka Basin, Gujarat, India and their paleobiogeographic implications. S Bose, K., Das, S. S., Saha BSIP NECLIME Conference on Neogene climate evolution and biotic response(s … , 2021 2021
The role of western Indian pleurotomariid gastropods in changing migration patterns of the family during the Cenozoic. S Bose, K., Das, S. S., Mondal 2nd CPEG meeting- Crossing the Palaeontological-Ecological Gap, Berlin, 2021, 16 , 2021 2021
Taxonomic and Ecological Diversity of Miocene Gastropods of the Dwarka Basin, Western India. SS Bose, K., Das 5th International Meeting of Early-stage Researchers in Palaeontology … , 2021 2021
Observation on the life habits of windowpane oyster from Gujarat S Mondal, K Bose, SS Das Indian Journal of Geosciences 74 (2), 183-186 , 2020 2020 Citations: 2
Status of Gastropod diversity pattern of three basins of Indian subcontinent during Miocene reviewed. P Das, S. S., Bose, K., Goswami Deep Time Biodiversity of Bengal, An Outreach Programme, Indian Statistical … , 2020 2020
Discrimination of the Holocene subfamilies of the Family Naticidae: A geometric morphometrics approach. S Sharma, N., Mondal, S., Das, S. S., Bose, K., Saha 3rd National Geo-Research Scholars Meet, WIHG, Dehradun, India., 19-20 , 2019 2019
Geometrical analysis of Shell Coiling in Gastropoda: A Reappraisal of Theoretical and Empirical Approaches through time. K Bose Geo-Symposium Jadavpur University, Kolkata, India., 7 , 2018 2018
MOST CITED SCHOLAR PUBLICATIONS
Substrate-controlled naticid gastropod drilling predation on recent barnacles from Chandipur, India and its Palaeontological implications S Mondal, A Maitra, K Bose, P Goswami, S Bardhan, S Mallick Historical Biology 33 (7), 1029-1042 , 2021 2021 Citations: 10
An updated generic classification of Cenozoic pleurotomariid gastropods, with new records from the Oligocene and early Miocene of India K Bose, SS Das, S Mondal Journal of Paleontology 95 (4), 763-776 , 2021 2021 Citations: 8
Morphological conservatism of the family Naticidae (Gastropoda) through time: potential causes and consequences N Sharma, S Mondal, SS Das, K Bose, S Saha Paleobiology 47 (3), 487-502 , 2021 2021 Citations: 5
Miocene stromboid gastropods (superfamily Stromboidea Rafinesque, 1815) from the Dwarka Basin, Western India and their Paleobiogeographic implications K Bose, SS Das, S Saha Journal of the Geological Society of India 99 (11), 1491-1507 , 2023 2023 Citations: 3
A new species of Talantodiscus (Family Pleurotomariidae ) from the Late Jurassic of the Kutch, Western India S Saha, S S. Das, S Mondal, K Bose Journal of the Geological Society of India 100 (12), 1765-1772 , 2024 2024 Citations: 2
Global palaeobiogeographic distribution patterns of the Cenozoic pleurotomariid gastropods (Family: Pleurotomariidae Swainson, 1840) K Bose, SS Das, S Mondal Palaeobiodiversity and palaeoenvironments, 115-130 , 2024 2024 Citations: 2
Observation on the life habits of windowpane oyster from Gujarat S Mondal, K Bose, SS Das Indian Journal of Geosciences 74 (2), 183-186 , 2020 2020 Citations: 2
Biostratigraphy, mineralogy and paleoenvironmental analysis of the Miocene Gaj Formation from the Dwarka Basin, western India S Chaudhuri, K Bose, K Chattopadhyay, SS Das, AK Bhaumik Geological Magazine 162, e49 , 2025 2025 Citations: 1
Revised generic characterization of the Late Cretaceous Pleurotomariid Gastropods (Family Pleurotomariidae Swainson, 1840) with new records from the Cauvery Basin, southern India S Ghosh, K Bose, SS Das, RK Bera Cretaceous Research, 106337 , 2026 2026
New records of Nautiloidea from the lower Eocene marine succession of the Jaisalmer Basin, western India, and their environmental implications A Ghosh, K Bose, SS Das Palaeoworld, 201046 , 2025 2025
A diverse early Miocene (Burdigalian) turritelline-dominated gastropod assemblage from the Dwarka Basin of Kathiawar Peninsula, western India K Bose, SS Das, S Mondal, S Chaudhuri Journal of Paleontology 99 (6), 1303-1344 , 2025 2025
Erratum: Miocene Stromboid Gastropods (Superfamily Stromboidea Rafinesque, 1815) from the Dwarka Basin, Western India and their Paleobiogeographic Implications K Bose, SS Das, S Saha Journal of the Geological Society of India 100 (2), 303-303 , 2024 2024
Two giant gastropods from the Miocene of Dwarka Basin, Gujarat, India and their paleobiogeographic implications. S Bose, K., Das, S. S., Saha BSIP NECLIME Conference on Neogene climate evolution and biotic response(s … , 2021 2021
The role of western Indian pleurotomariid gastropods in changing migration patterns of the family during the Cenozoic. S Bose, K., Das, S. S., Mondal 2nd CPEG meeting- Crossing the Palaeontological-Ecological Gap, Berlin, 2021, 16 , 2021 2021
Taxonomic and Ecological Diversity of Miocene Gastropods of the Dwarka Basin, Western India. SS Bose, K., Das 5th International Meeting of Early-stage Researchers in Palaeontology … , 2021 2021
Status of Gastropod diversity pattern of three basins of Indian subcontinent during Miocene reviewed. P Das, S. S., Bose, K., Goswami Deep Time Biodiversity of Bengal, An Outreach Programme, Indian Statistical … , 2020 2020
Discrimination of the Holocene subfamilies of the Family Naticidae: A geometric morphometrics approach. S Sharma, N., Mondal, S., Das, S. S., Bose, K., Saha 3rd National Geo-Research Scholars Meet, WIHG, Dehradun, India., 19-20 , 2019 2019
Geometrical analysis of Shell Coiling in Gastropoda: A Reappraisal of Theoretical and Empirical Approaches through time. K Bose Geo-Symposium Jadavpur University, Kolkata, India., 7 , 2018 2018
