Figure 3. Tetractinellida cytochrome c oxidase subunit I (COI) maximum likelihood (ML) trees reconstructed with RAxML under the generalized time-reversible Gamma – GTRGAMMA – model: 140 sequences At each key node, ML bootstrap supports (100 bootstrap replicates) and Bayesian posterior probabilities are given. There are two bootstrap supports: nucleotide analyses/amino-acid analyses (only bootstrap supports above 50 are shown). GenBank accession numbers are given after each taxon name. Presence of mitochondrial introns are given in the COI tree (the number given to each intron indicates its position with respect to the Amphimedon queenslandica complete COI as reference).