First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications

Khan, Mahasin Ali; Bera, Mahua; Spicer, Robert A.; Spicer, Teresa E.V.; Bera, Subir

doi:10.1016/j.revpalbo.2017.08.006

Cited by 19 publications

(2 citation statements)

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“…In contrast, there is no evidence of any significant change in the precipitation regime experienced in the lowlands immediately south of the mountains (in the Himalayan Foreland Basin) ( Ding et al., 2017 ), although the precision of wet season rainfall estimates is poor because in wet regimes leaf architecture (upon which these estimates were based) is poorly constrained by precipitation (see http://clamp.ibcas.ac.cn for details). There is some evidence of an intensification of rainfall seasonality in the eastern Himalaya since the mid Miocene, especially in the dryness of the dry season, reflected in a transition from evergreen to semi-evergreen tropical forests in that area ( Khan et al., 2017 ).…”

Section: The Role Of the Himalaya In Shaping Monsoon Characteristicsmentioning

confidence: 99%

Tibet, the Himalaya, Asian monsoons and biodiversity – In what ways are they related?

2017

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Prevailing dogma asserts that the uplift of Tibet, the onset of the Asian monsoon system and high biodiversity in southern Asia are linked, and that all occurred after 23 million years ago in the Neogene. Here, spanning the last 60 million years of Earth history, the geological, climatological and palaeontological evidence for this linkage is reviewed. The principal conclusions are that: 1) A proto-Tibetan highland existed well before the Neogene and that an Andean type topography with surface elevations of at least 4.5 km existed at the start of the Eocene, before final closure of the Tethys Ocean that separated India from Eurasia. 2) The Himalaya were formed not at the start of the India–Eurasia collision, but after much of Tibet had achieved its present elevation. The Himalaya built against a pre-existing proto-Tibetan highland and only projected above the average height of the plateau after approximately 15 Ma. 3) Monsoon climates have existed across southern Asia for the whole of the Cenozoic, and probably for a lot longer, but that they were of the kind generated by seasonal migrations of the Inter-tropical Convergence Zone. 4) The projection of the High Himalaya above the Tibetan Plateau at about 15 Ma coincides with the development of the modern South Asia Monsoon. 5) The East Asia monsoon became established in its present form about the same time as a consequence of topographic changes in northern Tibet and elsewhere in Asia, the loss of moisture sources in the Asian interior and the development of a strong winter Siberian high as global temperatures declined. 6) New radiometric dates of palaeontological finds point to southern Asia's high biodiversity originating in the Paleogene, not the Neogene.

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Section: The Role Of the Himalaya In Shaping Monsoon Characteristicsmentioning

confidence: 99%

Tibet, the Himalaya, Asian monsoons and biodiversity – In what ways are they related?

2017

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“…Abundant occurrences of Mastixia in Miocene strata of Europe have been always associated with warmer periods and called 'Mastixiodeen-Floras' according to Mai (1970). Up to recently, mastixioid fossils had not been reported from Asia, however, leaves and diaspores assigned to Mastixia recently have been described from Miocene to Pleistocene Siwalik strata in eastern India (Khan et al 2017).…”

Section: Cornalesmentioning

confidence: 99%

First palynological results of accessorial elements from the Langhian Schaßbach clay pit, Lavanttal Basin (Austria) – LM and SEM investigations of Cornales and Ericales

Hofmann

Lichtenwagner

2019

Grana

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Preliminary results of the palynoflora from the Schaßbach clay pit comprise accessorial floral elements of three Cornales and five Ericales pollen taxa that have modern living equivalents from different continents. The eight taxa are relatively rare in the palynological assemblages and are affiliated with the genera Nyssa, Mastixia, Erica, Vitellariopsis, Rehderodendron and Polyspora. Nyssa sp. resembles closely the deciduous Nyssa sylvatica of temperate America, the two Erica spp. resemble the south European tree heathers Erica arborea and Erica lusitanica, and Vitellariopsis sp. looks like evergreen Vitellariopsis marginata from subtropical southern Africa. The living equivalents of Mastixia spp., Rehderodendron sp. and Polyspora sp. are evergreen taxa from subtropical and tropical Asia.

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In Situ Occurrence of Phomites Fritel in the Phyllosphere of Ancient Siwalik Forests of Eastern Himalaya During the Mio-Pleistocene

Bera

Khan

Acharya

et al. 2021

Phoma: Diversity, Taxonomy, Bioactivities, and Nanotechnology

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First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications

Cited by 19 publications

References 54 publications

Tibet, the Himalaya, Asian monsoons and biodiversity – In what ways are they related?

Tibet, the Himalaya, Asian monsoons and biodiversity – In what ways are they related?

First palynological results of accessorial elements from the Langhian Schaßbach clay pit, Lavanttal Basin (Austria) – LM and SEM investigations of Cornales and Ericales

In Situ Occurrence of Phomites Fritel in the Phyllosphere of Ancient Siwalik Forests of Eastern Himalaya During the Mio-Pleistocene

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