Strict consensus trees resulting from MP analyses of morphological transition series.

<p>(A) Unconstrained tree, transition series unordered. (B) Constrained tree, transition series unordered. (C) Unconstrained tree, transition series ordered. (D) Constrained tree, transition series ordered. Numbers at nodes are bootstrap values. Symbol: “C”, node constrained based on results of Bayesian analyses. Capital letters following species designations refer to geographical localities (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0140280#pone.0140280.t002" target="_blank">Table 2</a>). Color refer to different evolutionary clades in our concatenated gene tree in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0140280#pone.0140280.g001" target="_blank">Fig 1</a>.