Figure 21. A in Osteology and phylogenetic relationships of Tehuelchesaurus benitezii (Dinosauria, Sauropoda) from the Upper Jurassic of Patagonia

Figure 21. A, strict consensus of MPTs, showing the phylogenetic position of Tehuelchesaurus. B, reduced consensus tree of the MPTs after the exclusion of Malarguesaurus, Tendaguria, and Venenosaurus. Stem based groups are symbolized by arrows and node-based groups with open circles. Node definitions: Eusauropoda (Upchurch et al., 2004); Neosauropoda (Wilson & Sereno, 1998); Diplodocoidea (Wilson & Sereno, 1998); Macronaria (Wilson & Sereno, 1998); Camarasauromorpha (Upchurch et al., 2004); Titanosauriformes (Wilson & Sereno, 1998); Somphospondyli (Sereno, 2005); Titanosauria (Wilson & Upchurch, 2003).