Search Results - "Upchurch, G.R. Jr"

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    Comparative Morphology of Fossil and Extant Leaves of Nelumbonaceae, Including a New Genus from the Late Cretaceous of Western North America by Estrada-Ruiz, Emilio, Upchurch, G. R, Wolfe, J.A, Cevallos-Ferriz, S. R. S

    Published in Systematic botany (01-04-2011)
    “…We describe in detail the foliar architecture of extant Nelumbo and propose a new genus, Exnelumbites Estrada-Ruiz, Upchurch, Wolfe & Cevallos-Ferriz, for…”
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    Evidence for the recovery of terrestrial ecosystems ahead of marine primary production following a biotic crisis at the Cretaceous-Tertiary boundary by Beerling, D. J, Lomax, B. H, Upchurch, Jr, Nichols, D. J, Pillmore, C. L, Handley, L. L, Scrimgeour, C. M

    Published in Journal of the Geological Society (01-09-2001)
    “…The fossil record demonstrates that mass extinction across the Cretaceous-Tertiary (K-T) boundary is more severe in the marine than the terrestrial realm. We…”
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    Homocysteine, EDRF, and endothelial function by Upchurch, Jr, G R, Welch, G N, Loscalzo, J

    Published in The Journal of nutrition (01-04-1996)
    “…Nitric oxide, a heterodiatomic molecule, serves as an endothelium-dependent vasodilator and an antithrombotic agent in the vasculature. Because of its…”
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  5. 5

    Vegetation, climatic and floral changes at the Cretaceous-Tertiary boundary by Wolfe, J.A, Upchurch, G.R. Jr

    Published in Nature (London) (13-11-1986)
    “…The western interior of North America has the only known non-marine sections that contain the iridium-rich clay interpreted as the Cretaceous-Tertiary (K-T)…”
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    Leaf assemblages across the Cretaceous-Tertiary boundary in the Raton Basin, New Mexico and Colorado by Wolfe, J.A, Upchurch, G.R. Jr

    “…Analyses of leaf megafossil and dispersed leaf cuticle assemblages indicate that major ecologic disruption and high rates of extinction occurred in plant…”
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    Cuticular anatomy of angiosperm leaves from the lower cretaceous potomac group. I. Zone I leaves by Upchurch, G.R. Jr

    Published in American journal of botany (01-02-1984)
    “…Angiosperm leaf cuticles from the oldest part of the Potomac Group reinforce previous paleobotanical evidence for a Cretaceous flowering plant diversification…”
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    Drewria potomacensis gen. et sp. nov., an early Cretaceous member of Gnetales from the Potomac Group of Virginia by Crane, P.R, Upchurch, G.R. Jr

    Published in American journal of botany (01-11-1987)
    “…Drewria potomacensis gen. et sp. nov. from the Lower Cretaceous Potomac Group of Virginia (Zone I, probably Aptian) provides the first definite Mesozoic…”
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