FIGURE 2 in The pliomerid trilobite Ibexaspis and related new genera, with species from the Early Ordovician (Floian; Tulean, Blackhillsian) of the Great Basin, western USA

FIGURE 2. Single most parsimonious cladogram derived by implicit enumeration from the taxon-character matrix of Table 1. Length = 57, consistency index = 0.85, and retention index = 0.91. Homoplastic states are shown as open symbols. The number above each symbol is the character number and the number below is the state number. 1. Character-state transformations optimized under the accelerated transformation (ACCTRAN) criterion. Bootstrap scores are shown at each node. The first number is the absolute bootstrap frequency (only values greater than 50% are listed) and the second is the GC metric (Goloboff et al., 2003). 2. Character-state transformations optimized under the delayed transformation (DELTRAN) criterion. Bremer support values are shown at each node.