Phylogenetic relationships of microhylids. The ML tree (-lnL = 77832.21) based on the Aln-1 dataset (7164 nucleotide sites from two mitochondrial and six nuclear genes) is shown. Bootstrap probabilities of ML analysis (> 50%) and Bayesian post probabilities (* > 95, ** > 99%) are shown for each node. "Trichotomy" indicates the node condition in the corresponding BI trees. The nodes of which split ages are discussed in the text are shown by roman numerals (I - XI) and the same node numbers are used in Table 3.