Figure 1 in A review of the lower actinopterygian phylogeny

Figure 1. Most parsimonious tree showing lettered nodes. The character transformations are given as follows. Those related to transformations along the internal branches are given in the first paragraph, those leading to the terminal taxa in the second. Against each lettered node the character number is given, followed by the character state transformation in parentheses. This is followed by the consistency index (CI) of that character in square parentheses. Synapomorphic (or autapomorphic in the case of terminal taxa) character states are preceded by asterisks. The nature of the character state change is indicated by the arrows. Double stemmed arrows indicate unambiguous character state changes, meaning that the particular change will occur under any optimization (e.g. ACCTRAN, as used here, or DELTRAN). Single stemmed arrows mean ambiguous optimization (i.e. the optimization may change if different assumptions of optimization are invoked).