Figure S4 from Experimental degradation of helicoidal photonic nanostructures in scarab beetles (Coleoptera: Scarabaeidae): implications for the identification of circularly polarizing cuticle in the fossil record

Spectrophotometric data from untreated (black), decayed (red) and matured (blue) cuticle. Box and whiskers plots show the range of local λmax values obtained from reflectance spectra: square: mean, crosses: minimum and maximum values, n: number of measurements, SD: standard deviation.