Figure 1 in The first molecular phylogeny of Buthidae (Scorpiones)

Figure 1: Maximum Likelihood (ML) tree of Old World and New World Buthidae inferred from a 296 bp fragment of the mitochondrial ribosome 16S region. The DNA substitution model was TVM + I + Γ; base frequencies: πA = 0.34, πT = 0.42, πC = 0.14, Rmatrix = (A-G = 11.50, A-C = 2.95, C-G ~ 0, A-T = 2.44, G-T = 1, C-T = 11.50), gamma shape parameter α = 0.67, and proportion of invariable sites = 0.28, respectively. The tree was rooted using the outgroup species Pseudochactas ovchinnikovi.