Figure 4 in Morphological perspective on the classification and evolution of Recent Pterioidea (Mollusca: Bivalvia)

Figure 4. Single most-parsimonious cladogram (length = 317; consistency index = 0.54; retention index = 0.56). Branches are depicted proportional to the branch length. Mapped apomorphies are unambiguously optimized nonhomoplastic (black squares) and homoplastic (white squares) character states. The numbers above and below the squares denote characters and corresponding character states, respectively (as numbered and described in Appendix 1). Jackknife values are shown by numbers in rectangles at corresponding nodes. Numbers in circles enumerate nodes discussed in the Results.