Extended Data Figure 9: Melanosome diameters and aspect ratios observed in extant feathers, lepidosaur, testudine and archosaur skin, and mammalian hair.
From: Melanosome evolution indicates a key physiological shift within feathered dinosaurs
Melanosome diameters are shown in a, and aspect ratios are shown in b. Boxplot colours correspond with integument colour: black, brown, grey. For feathers, ‘penguin-like’ is shown in blue and iridescent is shown in purple. Lines are median values, boxes are quartiles, lines are range. Boxplots sharing the same letter (v, w, x, y, z) are not significantly different from one another.
