Figure 2

Ribosomal protein dataset fully resolves animal phylogeny and reveals chaetognaths to be the sister taxon of all other protostomes. This tree was inferred using phylobayes with the CAT model from a dataset of 12,764 amino acid positions after removal of ambiguous positions by Gblock. Bayesian posterior probabilities (upper numbers, bold type) and ML bootstrap support (lower numbers, italic type) are indicated as support values and circled for nodes relevant to chaetognath branching. Bayesian posterior probabilities over 95% and ML-bootstrap values over 70% are considered valid support.