Figure 4 in Phylogeny of South American Bufo (Anura: Bufonidae) inferred from combined evidence

Figure 4. Bayesian topology inferred from the combined molecular and morphological data, analysed with the following maximum likelihood (ML) models: GTR + I + G (mitochondrial DNA + Rag-1), GTR + G (POMC), and Markov k (Mk; morphology). Bayesian posterior probabilities (multiplied by 100) are listed below the branches (values ≥ 97 are indicated with an asterisk). The skull (frontoparietal) type of each clade is indicated as follows: black line, 'broad skull'; grey line, 'narrow skull'; dashed line, equivocal. To give an indication of the variation in skull width and shape within Bufo, the skull of one representative of each South American species group (and B. lemur from the West Indies), is illustrated to the right of its respective clade.