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| 1 | First fossil evidence of Palaeocarya(Engelhardioideae:Juglandaceae)from India and its biogeographical implications显示文摘Even though presently indigenous to eastern Himalaya in India,no Engelhardioideae have been reported from the Cenozoic sediments of India till date.Here,we report the first Indian occurrence of a characteristic engelhardioid winged samaroid fruit having a tri-lobed wing(oblong-ovate median lobe and two lateral lobes)and a globose nut from the latest Neogene(Pliocene:Rajdanda Formation)sediments of Chotanagpur Plateau,eastern India.This is the first fossil evidence of relict family Juglandaceae from the Indian Cenozoic.We determine its taxonomic position on the basis of detailed macromorphological comparison with similar extant and fossil specimens and discuss its palaeoclimatic significance in terms of the present-day distribution of modern analogous species.We assign this Pliocene winged fruit specimen to the morphogenus Palaeocarya sect.Monocosta Manchester and describe it as a new species,namely Palaeocarya indica Hazra,Hazra M&Khan sp.nov.Palaeocarya sect.Monocosta has rich fossil records from the Cenozoic sediments of Europe,North America,and eastern Asia(China,Korea),but the modern analog,Engelhardia,is presently native only to India and neighboring Southeast Asia.We discuss the possible causes of disappearance of Engelhardia from the present-day vegetation of Chotanagpur Plateau.Its disappearance may be related to the gradual intensification of monsoonal rainfall seasonality since the Pliocene.Here,we also review in detail the biogeographic history of Palaeocarya sect.Monocosta and suggest its possible migration routes. | Taposhi Hazra Manoshi Hazra Sanchita Kumar Sumana Mahato Meghma Bera Subir Bera Mahasin Ali Khan | 2021 | Journal of Systematics and Evolution2021，59，6： | 3 |
| 2 | Experimental andtheoretical studies of Fe-doped TiO2 films prepared by peroxo sol-gelmethod显示文摘 | Diana V Wellia Xu Q C Mahasin Alam Sk | 2011 | Applied Catalysis A:General2011，401，12： | 1 |
| 3 | A molecular rheostat at the interface of cancer and diabetes显示文摘 | Mahasin A. Osman Fazlul H. Sarkar Enrique Rodriguez-Boulan | 2013 | BBA - Reviews on Cancer2013，，1： | 1 |
| 4 | Schwannoma of the larynx:two case reports and review of the literature J显示文摘 | Otieschan AT Mahasin ZZ Gangopadhyay K | | 0，，： | 1 |
| 5 | Laryrgotrachcoplasty using the Medpor implant: An animal model 显示文摘 | Hashcrn FK Al-Homsi M Mahasin ZZ | 2001 | J Otolaryngol2001，30，6： | 1 |
| 6 | Laryngotracheoplasty using the Medpor implant:an animal model显示文摘 | Hashem FK Al Homsi M Mahasin ZZ | 2001 | J Otolaryngol2001，30，6： | 1 |
| 7 | Experimental and theoretical studies of Fe-doped TiO2films prepared by peroxo sol-gel method显示文摘 | Diana V W Xu Q C Mahasin A Sk | 2011 | Appl Catal A:General2011，401，： | 1 |
| 8 | Transparent visible light activated C-N-F-codoped Ti02 films for self-cleaning applications显示文摘 | XU Qing-chi WELLIA D V MAHASIN A S | 2010 | Journal of Photochemistry and Photobiology A: Chemistry2010，210，23： | 1 |
| 9 | Schwannoma of the larynx:two case reports and review of the literature显示文摘 | Al-otieschan AT Mahasin ZZ Gangopadhyay K | | 0，，06： | 1 |
| 10 | Schwannoma of the larynx:two case reports and review of the literature显示文摘 | AL-OTIESCHAN A T MAHASIN Z Z GANGOPADHYAY K | 1996 | J Otolaryngol1996，25，： | 1 |
| 11 | La- ryngotracheoplasty using the Medpor implant : an aiumal model显示文摘 | HASHEM FK Al HOMSI M MAHASIN ZZ GAMMAS MA | 2001 | J Otolaryngol2001，30，6： | 1 |
| 12 | Occurrence of Persea Mill. from the Siwalik Forest of Darjeeling, Eastern Himalaya: Paleoclimatic and Paleogeographic Implications显示文摘Fossil leaf remains of two new species of Persea Mill., belonging to the family Lauraceae collected from the lower part of the Siwalik sediments(Gish Clay Formation of Sevok Group, Middle Miocene) of Darjeeling foothills of eastern Himalaya, are described. The new species are Persea miogamblei sp. nov. and Persea neovillosa sp. nov.. On the basis of leaf architecture(size, shape and venation pattern) fossil leaves described in this article closely resemble modern leaves of Persea gamblei(King ex Hook. f.) Kosterm. and Persea villosa(Roxb.) Kosterm.. The geographic distribution of the fossils and their modern counterparts are discussed and on that basis tropical evergreen vegetation with a warm and humid climate at the time of deposition of the Siwalik sediments is suggested in contrast to the present day tropical deciduous vegetation in this area. The present finding also suggests probable migration of these lauraceous taxa to Southeast Asia. | Mahasin Ali Khan Subir Bera | 2016 | Journal of Earth Science2016，27，5： | 1 |
| 13 | The first report on the prevalence of pestivirus infection in camels in Sudan显示文摘 | Kamil Saeed Intisar Yahia H. Ali AbdelMelik I. Khalafalla E. A. Rahman Mahasin Adil S. Amin Khalid M. Taha | 2010 | Tropical Animal Health and Production2010，，： | 1 |
| 14 | Laryngotracheoplasty using the Medpor implant: an animal model 显示文摘 | Hashem FK AI Homsi M Mahasin ZZ | 2001 | J Otolaryngol2001，30，6： | 1 |
| 15 | First fossil evidence of samaras of Ventilago Gaertn.(Rhamnaceae)from India and its implications显示文摘The Ventilago Gaertn.(Rhamnaceae)is widely distributed in pantropical areas of Africa,Asia,and Australia.However,fossil records of this taxon are sparse,which limits understanding of the evolution and biogeographic history of the genus.In the present study,we report and describe two new fossil species of Ventilago,V.siwalika sp.nov.from the Miocene sediments of Himachal Pradesh,western Himalaya,and V.pliocenica sp.nov.from the Pliocene sediments of Jharkhand,eastern India based on single-winged samaras.Ventilago pliocenica is characterized by a prominent midvein,obtuse to sub-round apex with mucronate tip,longitudinal secondary veins extending the full length of the fruit,and reticulate nature of higher-order veins,the presence of equatorial rim,the hypanthium,and short pedicel.On the other hand,V.siwalika is characterized by a prominent midvein,obtuse to sub-round apex with mucronate tip,longitudinal secondary veins extending the full length of the fruit,and reticulate nature of higher-order veins.Our discovery represents the first unambiguous fossil record of single-winged samara of Ventilago from India and provides valuable insights into the evolution of this genus.In this paper,we also review its biogeographic history and add new information to understand its hypothetical migration route.Present and earlier records of Ventilago also suggest that this genus was a common forest element during Neogene(Miocene time)in Asia. | Taposhi Hazra Sampa Kundu Subir Bera Tapan Chakraborty Mahasin Ali Khan | 2023 | Journal of Systematics and Evolution2023，61，6： | 0 |
| 16 | Evidence of the oldest extant vascular plant(horsetails)from the Indian Cenozoic显示文摘Equisetum(Equisetaceae)has long been a focus of attention for botanists and palaeontologists because,given its extensive and well-documented fossil record,it is considered the oldest extant vascular plant and a key element in understanding vascular plant evolution.However,to date,no authentic fossil evidence of Equisetum has been found from the Indian Cenozoic.Here,we describe a new fossil species,namely,E.siwalikum sp.nov.,recovered from the middle Siwalik(Late Miocene)sediments of Himachal Pradesh,western Himalaya.We identified fossil specimens based on morphological and epidermal characters.In addition,X-Ray diffraction(XRD)analysis was used to determine the mineral composition of compressed stems of Equisetum.The close affinity of our recovered Siwalik fossils to Equisetum is supported by the presence of both macromorphological and epidermal characters.Because Equisetum generally grows in wet conditions around water reservoirs,our findings indicate that the fossil locality was humid and surrounded by swamp and lowland regions during deposition.Ample fossil evidence indicates that this sphenopsid once existed in the western Himalaya during the Siwalik period.However,at present Equisetum is confined to a particular area of our fossil locality,probably a consequence of severe environmental changes coupled with competition from opportunistic angiosperms.Our discovery of Equisetum fossils in appreciable numbers from the Siwalik sediments of the Himachal Himalayas is unique and constitutes the first reliable recognition of Equisetum from the Indian Cenozoic. | Sampa Kundu Taposhi Hazra Tapan Chakraborty Subir Bera Mahasin Ali Khan | 2023 | Plant Diversity2023，45，5： | 0 |
| 17 | Coryphoid palms from the K-Pg boundary of central India and their biogeographical implications:Evidence from megafossil remains显示文摘Ten palm leaf impressions are documented from the latest Maastrichtian(late Cretaceous) to early Danian(earliest Paleocene) sediments(K-Pg,c.66-64 Ma) of the Mandla Lobe of the Deccan Intertrappean Beds,Madhya Pradesh,central India.The palmate leaf shape along with a definite wellpreserved costa support their placement in the subfamily Coryphoideae of the family Arecaceae.We place all recovered palm leaf specimens in the fossil genus Sabalites,report seven species of coryphoid palms and describe two new species namely,Sabalities umariaensis sp.nov.and Sabalites ghughuaensis sp.nov.The fossils indicate that coryphoid palms were highly diverse in central India by the latest Cretaceous.These and earlier reported coryphoid palm fossils from the same locality indicate that they experienced a warm and humid tropical environment during the time of deposition.These discoveries confirm the presence of a diversity of Coryphoideae in Gondwana prior to the India-Eurasia collision and provide information about coryphoid biogeographical history over geological time.Based on megafossil remains,we trace coryphoid palm migration pathways from India to mainland Southeast(SE) Asia and other parts of Asia after the docking of the Indian subcontinent with Eurasia early in the Paleogene. | Sanchita Kumar Taposhi Hazra Robert A.Spicer Manoshi Hazra Teresa E.V.Spicer Subir Bera Mahasin Ali Khan | 2023 | Plant Diversity2023，45，1： | 0 |
| 18 | Siwalik plant megafossil diversity in the Eastern Himalayas: A review显示文摘The Eastern Himalayas are renowned for their high plant diversity.To understand how this modern botanical richness formed,it is critical to investigate past plant biodiversity preserved as fossils throughout the eastern Himalayan Siwalik succession(middle Miocene-early Pleistocene).Here,we present a summary of plant diversity records that document Neogene floristic and climate changes.We do this by compiling published records of megafossil plant remains,because these offer better spatial and temporal resolution than do palynological records.Analyses of the Siwalik floral assemblages based on the distribution of the nearest living relative taxa suggest that a tropical wet evergreen forest was growing in a warm humid monsoonal climate at the deposition time.This qualitative interpretation is also corroborated by published CLAMP(Climate Leaf Analysis Multivariate Program) analyses.Here,we also reconstruct the climate by applying a new common proxy WorldClim2 calibration.This allows the detection of subtle climate differences between floral assemblages free of artefacts introduced by using different methodologies and climate calibrations.An analysis of the Siwalik floras indicates that there was a gradual change in floral composition.The lower Siwalik assemblages provide evidence of a predominance of evergreen elements.An increase in deciduous elements in the floral composition is noticed towards the close of the middle Siwalik and the beginning of the upper Siwalik formation.This change reflects a climatic difference between Miocene and Plio-Pleistocene times.This review helps us to understand under what paleoenvironmental conditions plant diversity occurred and evolved in the eastern Himalayas throughout the Cenozoic. | Mahasin Ali Khan Sumana Mahato Robert A.Spicer Teresa E.V.Spicer Ashif Ali Taposhi Hazra Subir Bera | 2023 | Plant Diversity2023，45，3： | 0 |
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