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Principal dimensions of tangent space for male and female Procrustes‐aligned specimens. The phylogenetic tree is superimposed to reveal how head shape of Corytophanid lizards has evolved. On the female plot, Laemanctus and Basiliscus are more similar in shape than either is to Corytophanes. On the male plot, Basiliscus and Corytophanes are more similar in shape than either is to Laemanctus
