Figure 2. ML-based phylogenetic reconstruction of the mt-contig alignment, rooted to the Leiopathidae (an ingroup). Numbers at nodes are bootstrap support values based on 1000 replicates. AIC within jModelTest selected the TVM + I + G model of nucleotide substitution [proportion of invariable sites (pinvar): 0.3940; gamma distribution parameter: 1.0000]. Tip labels indicate the specimen used in the alignment. Several specimens shared identical haplotypes or had haplotypes that were rendered identical following manipulations of the sequence alignment (see text); only one representative of these haplotypes was included in the analysis but the taxa affected are highlighted as follows: identical nominal taxa are separated by a forward slash, and an asterisk indicates unique haplotypes rendered identical following sequence manipulations. For the indistinguishable trigeneric complex, the taxon used in the phylogeny is listed in curly brackets. ∧ Includes Tanacetipathes barbadensis USNM 1116465, T. tanacetum SED804-7, Plumapathes pennacea USNM 1086297, and P. pennacea USNM 1086302*. ∧∧ Includes Antipathes curvata USNM 1015453, A. cf. virgata USNM 99750, and Cirrhipathes sp. P4-226-9. ∧∧∧ Includes Stichopathes cf. occidentalis TMKO-132* and TMNI0707-22*.