Figure 1 in A novel epidermal gland type in lizards (α-gland): structural organization, histochemistry, protein profile and phylogenetic origins

Figure 1. Phylogenetic distribution of major epidermal gland types in lizards. Multiple instances of independent evolution are supported for each gland type (i.e. follicular and generation glands). The topology shown is a pruned version of Pyron et al.'s (2013) squamate tree. Images of the external appearance and histological profile of the epidermal glands are from Cordylus niger Cuvier, 1829 and Smaug giganteus (Smith, 1844), respectively (images by J. H. van Wyk).