FIGURE 6. Phylogenetic relationships of <i>Brachiosaurus</i> and
<i>Giraffatitan</i>, produced using PAUP* 4.0b10 on the matrix of Harris
(2006) modified by splitting the composite "<i>Brachiosaurus</i>" OTU
into two separate OTUs for the two species, having 31 taxa and 331
characters. Strict consensus of 72 most parsimonious trees (length =
791; CI = 0.5196; RI = 0.6846, RC = 0.3557). Three clades forming a
node-stem triplet are highlighted: the node-based Titanosauriformes,
and the branch-based sister clades Brachiosauridae and Somphospondyli.