Omkar Verma

ORCID: 0000-0003-4655-9216
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About
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Research Areas
  • Evolution and Paleontology Studies
  • Paleontology and Evolutionary Biology
  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Ichthyology and Marine Biology
  • Geological formations and processes
  • Geological and Geophysical Studies
  • Bat Biology and Ecology Studies
  • Groundwater and Watershed Analysis
  • Marine Biology and Ecology Research
  • Groundwater and Isotope Geochemistry
  • Livestock Management and Performance Improvement
  • Pleistocene-Era Hominins and Archaeology
  • Geological and Geochemical Analysis
  • Fish biology, ecology, and behavior
  • Fish Biology and Ecology Studies
  • Agricultural Science and Fertilization
  • Crop Yield and Soil Fertility
  • Amphibian and Reptile Biology
  • Species Distribution and Climate Change
  • Indian Economic and Social Development
  • Hydrocarbon exploration and reservoir analysis
  • Geochemistry and Geologic Mapping
  • Primate Behavior and Ecology
  • Landslides and related hazards

Indira Gandhi National Open University
2016-2025

National Institute of Technology Patna
2021

Sam Higginbottom Institute of Agriculture
2014

Indian Veterinary Research Institute
2012

Baba Ghulam Shah Badshah University
2010

University of Jammu
2007-2009

Panjab University
2007

Indian Grassland and Fodder Research Institute
1986

Deen Dayal Upadhyaya Gorakhpur University
1971

Soil erosion is a major environmental problem that affects land and w ater resources. It has many negative implications lead to deforestation, poor agricultural practices, loss of soil fertility, siltation hinder socio-economic development. In view this, the present study was conducted with aim estimating in relation long-term use/land cover change (LULC) Dehar watershed, Himachal Himalaya, North India. The carried out using Landsat Sentinel imageries for years 1999, 2010, 2020. A GIS-based...

10.3389/ffgc.2023.1124677 article EN cc-by Frontiers in Forests and Global Change 2023-02-06

India's Late Cretaceous fossil mammals include the only undisputed pre-Tertiary Gondwanan eutherians, such as Deccanolestes . Recent studies have suggested a relationship between and African European Paleocene adapisoriculids, which been variably identified stem euarchontans, primates, lipotyphlan insectivores, or afrosoricids. Support for close any of these placental mammal clades would be unique in representing confirmed Mesozoic record mammal. However, some paleogeographic reconstructions...

10.1073/pnas.1108723108 article EN Proceedings of the National Academy of Sciences 2011-09-19

Abstract Groundwater is a vital natural resource in the Kathua region of Union Territory Jammu and Kashmir, Northern India, where it used for domestic, irrigation, industrial purposes. The main purpose this study was to assess hydrochemistry groundwater determine its suitability drinking, uses region. In study, 75 samples were collected analyzed physicochemical parameters such as electrical conductivity (EC), total dissolved solids , pH, various cations anions. data computed designing...

10.1007/s13201-022-01673-9 article EN cc-by Applied Water Science 2022-05-06

Paleobiotic assemblages from the Deccan infra- and intertrappean beds are reviewed in great detail. Three distinct paleoenvironments (fluvio-lacustrine/terrestrial, brackish water marine) have been identified within biotic of peninsular India. Recently, marine incursions recorded a few exposed central south-eastern The yielded planktic foraminiferans freshwater/brackish ostracods. affinities paleobiotas commonly considered to show mixed pattern resulting addition Gondwanan Laurasian elements...

10.1080/08912963.2014.912646 article EN Historical Biology 2014-05-02

ABSTRACT Vertebrate fossils have been known from South India's Cauvery Basin since the 1840s, but records of marine vertebrates late Albian to Turonian Karai Formation limited a single set ichthyosaur remains. Recent surface collecting and sieving lower Cenomanian glauconitic mudstones has yielded first material reported in India over last 140 years, as well diverse previously unrecorded shark assemblage. The material, including several teeth vertebrae, is assigned sole described Cretaceous...

10.1080/02724634.2011.574518 article EN Journal of Vertebrate Paleontology 2011-05-01

It has become evident that advances in farm animal reproduction have increasingly dependent on advance scientific research addition to an understanding of the physiological processes involved reproduction.The use assisted reproductive techniques (ART) helped owners produce offspring from valuable animals were considered infertile using standard breeding techniques.This chapter constitutes update recent developments field includes Artificial insemination, Embryo transfer, vitro fertilization,...

10.5455/vetworld.2012.301-310 article EN cc-by Veterinary World 2012-01-01

The sedimentary record documenting the northward drift of India (Late Cretaceous to late Early Eocene) has recently provided important clues evolution, radiation, and dispersal mammals. Here, we report a definitive Late (Maastrichtian) archaic ungulate (Kharmerungulatum vanvaleni genus et species nova) from Deccan volcano-sedimentary sequences exposed near Kisalpuri village in Central India. This find implications for origin diversification early ungulates raises three possible...

10.1126/science.1149267 article EN Science 2007-11-09

ABSTRACT Late Cretaceous vertebrate faunas of India are known predominantly from intertrappean deposits in the Deccan volcanic province central and western parts country. A thick nearly continuous sequence Early Cretaceous–Early Paleocene fossiliferous sediments exposed Cauvery Basin South has been comparatively poorly explored. Here, we present a preliminary description new fauna consisting fossils discovered continental Upper (late Maastrichtian) Kallamedu Formation. The Fauna includes...

10.1080/02724634.2013.777348 article EN Journal of Vertebrate Paleontology 2013-11-01

(2009). Dyrosaurid remains from the Intertrappean Beds of India and Late Cretaceous distribution Dyrosauridae. Journal Vertebrate Paleontology: Vol. 29, No. 4, pp. 1321-1326.

10.1671/039.029.0416 article EN Journal of Vertebrate Paleontology 2009-12-12

The road network in the Himalayan terrain is vital for India's socio-economic development and national security, yet complexities of topography, geological structures, diverse lithology, neotectonics make planning maintaining these routes a challenging task. Population growth expanding construction have caused slope destabilization, mass wasting, movement across terrain. Field-based stability assessments are essential characterization stabilization, helping planners predict select suitable...

10.1007/s44288-024-00107-0 article EN cc-by-nc-nd Discover Geoscience 2025-01-07

Bulk sampling from Upper Cretaceous (Maastrichtian) Deccan volcano-sedimentary sequences at Kisalpuri (District Dindori, Madhya Pradesh) and Pisdura–Dongargaon (Chandrapur District, Maharashtra) in Peninsular India has yielded the dental remains of myliobatid pycnodont fish. This fish fauna comprises Igdabatis indicus, Pycnodontoidea indet. Pycnodontidae indet., resembles assemblages known deposits Africa Europe. While paleobiogeographically speaking, presence suggests a series shallow...

10.1080/08912963.2016.1154954 article EN Historical Biology 2016-03-10

The Jhilmili intertrappean beds (Chhindwara District, Madhya Pradesh) of Central India are studied from a palaeoenvironmental, palaeoecological, and palaeobiogeographical perspective using fossil charophytes. These have yielded diverse charophyte assemblage, consisting Platychara perlata , raoi sahnii Peckichara cf. varians Nemegtichara grambasti Chara sp. 1. charophytes were recovered 60 cm thick clayey nodular limestone unit that is underlain by claystone overlain laminated claystones...

10.1002/gj.4528 article EN Geological Journal 2022-07-27

Abstract Soil salinity is the serious problem of arid and semi‐arid tracts world. It causes great losses to agriculture by lowering yields various crops. However, such soil may be utilized either after reclaimation or growing tolerant plant species. The degree salt tolerance varies not only with species but different varieties same show variation in tolerance. Germination seedling stages have a bearing on development at later growth ultimately crop yield. Therefore, present investigation,...

10.1111/j.1439-037x.1986.tb00016.x article EN Journal of Agronomy and Crop Science 1986-03-01
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