FIGURE 6 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas

FIGURE 6 DensiTree output of the Bayesian inference species tree of Tettigettalna with the partitioned unlinked mtCOI and nuEF-1α dataset. The consensus trees are shown by the bold blue line. Uncertainty of node heights and topology is shown by the transparent green, purple and red lines. Core Tettigettalna refers to the clade composed of the remainder of the Tettigettalna (see methods for explanation). Scale bar indicates ma. The broken lines (A-C) refer to key moments in time illustrated in the left panes. (A) Mid-Tortonian (~10–8 ma) when the ancestral population of the Tettigettalna occurred in the southern Iberian Peninsula; the broken line marks the separation of the T. josei lineage from the main ancestral population. (B) Late Messinian, during the salinity crisis, when the main population disperses to North Africa, via the formed land bridge; the broken line indicates the rupture caused by the opening of the Gibraltar Strait by end of the Messinian (5.33 ma). (C) Early Pliocene (~4 ma), showing the three lineages: T. josei in southwestern Iberia; T. afroamissa in Morocco and the remainder of the European Tettigettalna lineage, which would later diverge into all other species. In the lower left corner, a female of the Moroccan species T. afroamissa is shown