University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

World University root node

Geology

Geological Society of America Abstracts with Programs

THE RECORD OF OLDEST NATICID GASTROPOD FROM THE OXFORDIAN (UPPER JURASSIC) OF KUTCH, INDIA: PALAEOECOLOGICAL IMPLICATIONS

The coastal areas of the world are undergoing severe erosion due to a rapid transgression starting 3000 years ago. The erosion leads to exhumation of an ancient marsh at many places along the eastern coast of India. This marsh supported rich mangrove vegetation and a monospecific bivalve community, Glauconome sculpta (Sowerby), typical of estuarine facies. The bivalves are semi-infaunally positioned in their life mode within the sediments and they apparently monopolized the entire low water belt as opportunists. Present exhumation and exposure of the mud sediments lead to reworking of the bivalve shells and admixing with modern beach fauna. Extensive time-averaging of biota and development of condensed zone are thus in the making. The extermination of the bivalve community and preservation of numerous dead shells in life position point to a rapid rise of sea level that results in quick burial and consequent changes in substrate and salinity. These factors presumably were directly responsible for the evident regional mass mortality of G. sculpta. This palaeontological proxy has been used to understand the post Flandrian transgression during the past 3. ka. © 2010 Elsevier Ltd and Nanjing Institute of Geology and Palaeontology, CAS.

Palaeoworld

The Holocene sea level changes as evidenced from palaeontological data: A case study from Glauconome sculpta (Bivalvia) along the eastern coast of India

Geological Society of America Abstracts with Program

Analyzing repairability of shell breakage in bivalves

In 1981, Kitchell et al. envisaged a net energy maximization model that can rank different prey according to their preferences. Several workers tested the model both in experimental studies and in fossil records. In the present endeavor we have tried to analyze the nature, from a cost-benefit perspective, of naticid prédation on two Recent prey bivalve species Mactra luzonica Reeve, 1854, and Donax scortum Linnaeus, 1758, collected from eastern coast of India. The results have broadly supported the theoretical cost-benefit curve of Kitchell et al. (1981). While Mactra luzonica was thoroughly preyed upon regardless of body size, predation on Donax scortum significantly decreased after prey body size exceeds 3 cm. This is explained on the basis of a change in mode of living of the prey during late ontogeny, Other factors like prey availability, prey ornamentation, consumption rate, and presence of secondary predators that may constrain the model, have been discussed.

Nautilus

Testability of the Energy Maximization Model (Kitchell et al., 1981) of naticid predation on two bivalve prey from the eastern coast of India

Journal of the Palaeontological Society of India

Miocene shark teeth assemblages and ancillary fish taxa from Baripada, Orissa: Taxonomic revision and a global palaeobiogeographic overview