Fig. 2

Species-complete tree with phylogenetic distribution of trait data coverage (i.e., number of trait observations per species). The 15 largest families of the Class Octocorallia are labeled by colour. The two orders within the class, Scleralcyonacea and Malacalcyonacea, are also indicated. Arrowheads indicate that, for this first data release, Keratoisis grayi (4708 records), Muricea californica (437 records) and Corallium rubrum (280 records) have a disproportionately larger number of trait observations that do not fit in the plot. The phylogenetic tree was added to this figure solely for visualization purposes, organizing families by evolutionary relationships to enhance the interpretability of trait distributions across lineages, without implying further phylogenetic analysis. It corresponds to an adaptation of the family-resolved Maximum likelihood tree of Octocorallia inferred from 1059 bp alignment of mitochondrial gene mtMutS³², with species being incorporated as polytomies. (*) To facilitate visualization, all sea pens have been grouped into a single Pennatuloidea superfamily. Data for species belonging to genera that are currently incertae sedis have not been included in the figure. Finally, a complementary figure showing the phylogenetic distribution of trait data coverage as the number of different traits with data per species can be found in Fig. S1.