This files includes four tables and one figure, referred to in "Ratite non-monophyly: independent evidence from 40 novel loci" Table S1. Specimens used in this study Table S2. Locus information (including primers used in amplification and sequencing) Table S3. Best-fit models and tree topologies for individual loci (novel 40 loci plus 21 published loci) Table S4. Joint posteriors on individual gene trees (from BUCKy) Figure S1. Expected numbers of gene trees.