Maximum likelihood phylogeny based on DNA sequences of the mitochondrial cytochrome b alignment (dataset 1; alignment length 545 nucleotides) for 338 sequences of the G. liber complex, plus 56 sequences of other Guibemantis species and outgroups. Numbers at nodes are support values from a bootstrap analysis (100 replicates; values <50% and values of most of the shallow nodes not shown). The tree was rooted with a set of hierarchical outgroups of the mantellid genera Boophis, Gephyromantis and Spinomantis (removed from the figure for better graphical representation).