Phylogenetic analysis of Terebratalia Pax6 and Otx. (A) Phylogram of Terebratalia Pax6 and related proteins supporting orthology assignment. (B) Phylogram of Terebratalia Otx and related proteins supporting orthology assignment. Both phylograms are from from Bayesian likelihood analysis with four independent runs of 2,000,000 generations each. Posterior probabilities are presented above branches; bootstrap support values >50% from a 1,000 replicate maximum likelihood bootstrap analysis are shown below branches.