File:Edmontosaurus Mummy AMNH 5060 Thorax Skin Osborn 1912.png
Above: Photograph of region, from Osborn (1912, Fig. 6). Original caption: "Natural cast of foldings of the integument on the right side of the thorax of the Trachodon annectens 'mummy', showing close appression to the ribs and scapula. Amer. Mus. No. 5060."
Below: Interpretive drawing of same region, from Osborn (1912, Fig. 6a). Original caption: "Key to Fig. 6. Showing distribution of large areas of rounded tubercles on the sides of the thorax: (a) rounded areas of pavement tubercles; (b) elongate areas of pavement tubercles above and in front of the anterior portion of the scapula."