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Body Size Distribution of the Dinosaurs

Figure 3

Frequency distribution of maximum species body size for Cenozoic mammals (in grey) overlaid on the distribution for extant mammals (in white).

Curve fitting is based on a combination of kernel density estimation and smoothed bootstrap resampling. The figure clearly highlights the reduced frequency of small-bodied species in the Cenozoic mammal dataset, while the frequency of large-bodied species is comparable between both datasets.

Figure 3

doi: https://doi.org/10.1371/journal.pone.0051925.g003