Fig. 15. Phylogenetic relationships of Archosauriformes, showing main hypotheses of sauropod evolution (adapted from Wilson 2002; Nesbitt et al. 2009; Taylor 2009). Symbols indicate appendicular character evolution according the interpretation given in the present paper. The numbers indicate cladogram nodes as follows: 1, Archosauriformes; 2, Archosauria; 3, Ornithodira; 4, Dinosauromorpha; 5, Dinosauria; 6, Saurischia; 7, Sauropodomorpha; 8, Sauropoda; 9, Eusauropoda; 10, Neosauropoda; 11, Macronaria; 12, Titanosauriformes; 13, Somphospondili; 14, Titanosauria; 15, Saltasauridae; 16, Saltasaurinae.

Published as part of Otero, Alejandro, 2010, The appendicular skeleton of Neuquensaurus, a Late Cretaceous saltasaurine sauropod from Patagonia, Argentina, pp. 399-426 in Acta Palaeontologica Polonica 55 (3) on page 416, DOI: 10.4202/app.2009.0099, http://zenodo.org/record/13281313