FIGURE 5 in Wing coloration patterns in the Early Jurassic dragonflies as potential indicator of increasing predation pressure from insectivorous reptiles

FIGURE 5. Evolution patterns of pterosaurs vs. wing coloration in Odonata. A, Heterophlebia spp. wing coloration patterns. B, Percentage of aeschnidiid species with colored wing throughout time (?, uncertainties for Triassic period). C, Simplified phylogeny of Pterosauria, showing diversity of insectivorous families during Early Jurassic, period of first known Odonata with colored wings (cladogram after Zhou et al., 2017) (silhouettes from http://phylopic.org/).