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Plant Ecological Strategies Shift Across the Cretaceous–Paleogene Boundary

Figure 2

Changes in leaf functional traits and climate across the KPB (purple vertical line).

(A) LMA reflects leaf carbon investment, with lower values associated with deciduous species. (B) VD reflects carbon assimilation capacity, with higher values associated with deciduous species. For (A) and (B), each symbol is a species at site mean: +, channel facies; x, floodplain facies. (C) Changes in temperature reconstructed previously from leaf-margin analysis of the same floras [20]. Color indicates stratigraphic depth, with red for Cretaceous data and blue for Paleogene data. Boxplots of each distribution are shown in the right margin.

Figure 2