A5101626207- Fossil Insects in Amber
- Evolution and Paleontology Studies
- Plant Diversity and Evolution
- Geology and Paleoclimatology Research
- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Plant Parasitism and Resistance
- Hydrocarbon exploration and reservoir analysis
- Coleoptera Taxonomy and Distribution
- Geological formations and processes
- Ecology and Vegetation Dynamics Studies
- Plant and Fungal Species Descriptions
- Diptera species taxonomy and behavior
- Pleistocene-Era Hominins and Archaeology
- Ichthyology and Marine Biology
- Geochemistry and Geologic Mapping
- Scarabaeidae Beetle Taxonomy and Biogeography
- Paleontology and Evolutionary Biology
- Spider Taxonomy and Behavior Studies
- Coal and Its By-products
- Freshwater macroinvertebrate diversity and ecology
- Bat Biology and Ecology Studies
- Lepidoptera: Biology and Taxonomy
- Hymenoptera taxonomy and phylogeny
- Meat and Animal Product Quality
Academy of Scientific and Innovative Research
2020-2022
Indian Institute of Management Lucknow
2017-2020
Dr. Brill + Dr. Steinmann (Germany)
2017
Borlaug Institute for South Asia
2011-2014
Hemwati Nandan Bahuguna Garhwal University
2005-2006
For nearly 100 million years, the India subcontinent drifted from Gondwana until its collision with Asia some 50 Ma, during which time landmass presumably evolved a highly endemic biota. Recent excavations of rich outcrops 50–52-million-year-old amber diverse inclusions Cambay Shale Gujarat, western address this issue. occurs in lignitic and muddy sediments concentrated by near-shore chenier systems; chemistry anatomy associated fossil wood indicates definitive source Dipterocarpaceae. The...
The early Eocene (Ypresian) Cambay Formation of Vastan Lignite Mine in Gujarat, western India, has produced a diverse assemblage snakes including at least ten species that belong to the Madtsoiidae, Palaeophiidae (Palaeophis and Pterosphenus), Boidae, several Caenophidia.Within latter taxon, Colubroidea are represented by Russellophis crassus sp.nov.(Russellophiidae) Procerophis sahnii gen.et sp.nov.Thaumastophis missiaeni sp.nov. is caenophidian uncertain family assignment.At two other...
• The development of mycorrhizal associations is considered a key innovation that enabled vascular plants to extensively colonize terrestrial habitats. Here, we present the first known fossil ectomycorrhizas from an angiosperm forest. Our fossils are preserved in 52 million-yr-old piece amber Tadkeshwar Lignite Mine Gujarat State, western India. was produced by representatives Dipterocarpaceae early tropical broadleaf were investigated using light microscopy and field emission scanning...
The sedimentary sequence containing lignite deposits in Gurha quarry of the Bikaner-Nagaur Basin (Rajasthan) has been investigated. samples from and allied shale horizons were evaluated for petrographical, palynological, palynofacies organic geochemical inferences, to depict source flora reconstruct palaeodepositional conditions prevailed during sedimentation. An assessment hydrocarbon generation potential these also made. results revealed dominance huminite macerals phytoclasts matter (OM)...
A new ailuravine rodent, Meldimys musak sp.nov.(Mammalia: Rodentia, Ischyromyidae), is recorded from the lower Eocene lignites of western India.It oldest record Rodentia India.M. more derived than earliest Euromys cardosoi Portugal and generalized late early E. inexpectatus Ailuravus michauxi France.Its dental morphology closely corresponds to middle species M. louisi, which lived about 52 Ma in Western Europe.Meldimys was previously known only Europe, ailuravines were reported Europe North...
(2006). Early Eocene (Ypresian) continental vertebrate assemblage from India, with description of a new anthracobunid (Mammalia, Tethytheria) Journal Vertebrate Paleontology: Vol. 26, No. 1, pp. 219-225.
The fauna of termites (Isoptera) preserved in Early Eocene amber from the Cambay Basin (Gujarat, India) are described and figured. Three new genera four species recognized, all them Neoisoptera - Parastylotermes krishnai Engel & Grimaldi, sp. n. (Stylotermitidae); Prostylotermes kamboja gen. et (Stylotermitidae?); Zophotermes Engel, n., with ashoki Singh, (Rhinotermitidae: Prorhinotermitinae); Nanotermes isaacae (Termitidae: Termitinae?). Together these represent earliest Tertiary records...
A fossil of a mayfly nymph that shows similarities with the modern genus Teloganella Ulmer, 1939 family Teloganellidae is recorded for first time from Indian subcontinent. It systematically described Gurha lignite mine Bikaner, Rajasthan which belongs to Palana Formation (late Paleocene-early Eocene). As assignment species difficult due indistinguishable location gills in impression, new species, gurhaensis Agnihotri et al., sp. nov. instituted include this naiad resembling extant Teloganella.
Cambay amber originates from the warmest period of Eocene, which is also well known for appearance early angiosperm-dominated megathermal forests. The humid climate these forests may have triggered evolution epiphytic lineages bryophytes; however, Eocene fossils bryophytes are rare. Here, we present evidence lejeuneoid liverworts and pleurocarpous mosses in amber. preserved morphology moss fossil inconclusive a detailed taxonomic treatment. liverwort is, distinctive; its zig-zagged stems,...
India's unique and highly diverse biota combined with its geodynamical history has generated significant interest in the patterns processes that have shaped current distribution of flora fauna their biogeographical relationships. Fifty four million year old Cambay amber from northwestern India provides opportunity to address questions relating endemism biogeographic by studying fossil insects. Within present study seven extant three genera biting midges are recorded five new species...
The fauna of bees known from Early Eocene (Ypresian) Cambay amber are reviewed. Presently only three species have been recovered, all among the corbiculate Apinae and representing extinct tribes Electrapini Melikertini, genera slightly younger middle Baltic amber. A single, poorly-preserved fragmentary female an unidentifiable Protobombus Cockerell is recorded. Two new genus Melikertes Engel documented, one a subgenus, Paramelikertes & Ortega-Blanco, as third, melikertine uncertain...
Research Article| February 01, 2014 Exceptional preservation of angiosperm markers in Miocene and Eocene ambers Suryendu Dutta; Dutta * 1Department Earth Sciences, Indian Institute Technology Bombay, Powai, Mumbai 400076, India *E-mail: s.dutta@iitb.ac.in. Search for other works by this author on: GSW Google Scholar Rakesh Saxena; Saxena 2Birbal Sahni Palaeobotany, 53 University Road, Lucknow 226007, Hukam Singh Author Article Information Publisher: Geological Society America Received: 25...
The genus Spiloconis Enderlein is comprised of six Recent Asian and Pacific species, ranging from Sri Lanka (and possibly Madagascar) in the west to eastern Australia Fiji east. Two species previously described Miocene amber Dominican Republic, glaesaria Meinander S. oediloma Engel Grimaldi, are redescribed for some details. eominuta Grimaldi Engel, new earliest Eocene Cambay Gujarat, India, which has well-preserved male terminalia. Neoconis paleocaribis amber; this known southern United...
The family Scelembiidae (Neoembiodea: Embiomorpha: Archembioidea) is recorded from Asia for the first time, based on two individuals preserved in Early Eocene amber Cambay Basin, western India. Kumarembia hurleyi Engel & Grimaldi, gen. n. et sp. n., described, figured, and distinguished other archembioid genera. genus shares male genitalic features with scelembiids, otherwise known South America Africa.
The Leptosaldinae (Leptopodomorpha: Leptopodidae) are considered an isolated subfamily, possibly the sister group to remaining species of bug family Leptopodidae. Until now subfamily consisted two species: Leptosalda chiapensis Cobben, in Miocene amber from Chiapas, Mexico; and Saldolepta kistnerorum Schuh Polhemus, a Recent Ecuador Colombia. new species, dominicana Grimaldi Engel L. niarchos described Dominican Republic (a third is recorded but undescribed since it based on very fragmentary...