Rooted tree of modern birds based on complete mitochondrial genomes. Evolutionary relationships of Neoaves based on Maximum Likelihood analysis of 41 complete mtDNA sequences using a Galloanserae outgroup. Members of Metaves (Fain and Houde 2004) are indicated with black spots. Bayesian probabilities of 1.0 are indicated on branches as (*), branches with probabilities less than 0.99 not marked.
Morgan-Richards et al. BMC Evolutionary Biology 2008 8:20 doi:10.1186/1471-2148-8-20