Nature · 1994 · 272 citations · 26 references
Natural SciencesBotanyPlant SciencesPaleoclimatologyPaleoecologyPlant EvolutionCarbon FixationFossil PlantsIsotope BiogeochemistryOrigin Of Land PlantsOrigins Of LifePaleoecology Of PlantsC4 DiversificationC4 EvolutionC4 OriginCarbon Isotope GeochemistryCarbon Isotopic Fractionation
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