DescriptionParasaurolophus walkeri, a new genus and species of trachodont dinosaur - PLATE IV.png
English: Parasaurolophus walkeri. Left side of head with the distortion corrected. About 1/9 natural size.
A, surangular; B, predentary; D, dentary; E, exoccipital; F, frontal; I, quadranto-jugal; J, jugal; K, lateral temporal fossa; L, lachrymal (?); M, maxillary; N, nasal; O, orbit; P, prefrontal (?); PM, premaxillary; Q, quadrate; R, squasmosal; S, postfrontal; V, parietal.
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