English: Simplified phylogeny of the Sauropodomorpha showing the development of the craniodental apparatus. Tree topology after Benson et al. (2014) and McPhee et al. (2015). Skulls of exemplar taxa illustrated as follows. Left to right: Pantydraco in lateral and ventral views (redrawn from Yates (2003)); Plateosaurus in lateral and ventral views; Massospondylus in lateral view (redrawn from Gow et al. (1990)); Melanorosaurus in lateral and ventral views (redrawn from Yates (2007)); Shunosaurus in lateral and ventral views (redrawn from Chatterjee & Zheng (2002)); Mamenchisaurus in lateral and ventral views (redrawn from Ouyang & He (2002)); Cama- rasaurus. Functional characters of the feeding apparatus are mapped onto nodes after Barrett & Upchurch (2007), Upchurch et al. (2007) and results presented herein (see Discussion). E.M.F., external mandibular fenestra; m.PSTp, m. pseudotemporalis profundus. Characters found to be primarily associated with cranial robustness in blue, those primarily associated with cropping ability (bite force, tooth form) in red; wrinkled tooth enamel is of uncertain functional significance. Trends in craniodental morphology found by the analyses presented herein to be functionally significant (the increase in adductor chamber size within Sauropodomorpha and numerous shape changes within Sauropodiformes) are indicated and colour-coded as appropriate.