Phylogenetic trees of concatenated sequences from 11 representative taxa of bilaterian animals. (A and B) and the non-bilaterian N. vectensis as an outgroup (11716 amino acid sites from 59 orthologous genes). The blue vertical dotted line in each of the figures marks the tip of the Pomatoceros branch. Bootstrap percentages are indicated on each node. (A) Maximum likelihood tree. Likelihood: Loglk = -138,297.9751. (B) Neighbour-joining tree.