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. 2015 Apr 7;3:e857. doi: 10.7717/peerj.857

Figure 87. Scapula outlines of Diplodocoidea.

Figure 87

Scapula outlines of Haplocanthosaurus priscus CM 879 (A), Limaysaurus tessonei MUCPv-205 (B), Apatosaurus louisae CM 3018 (C; all traced from Mannion, 2009), and Diplodocus hallorum AMNH 223 (D; traced from Osborn, 1899). Note the concave dorsal border of the acromion process (B; C363-1), the acromion process that reaches almost half the scapular length (D; C364-1), the different shapes of the acromial edge (straight, C, C367-0; with rounded expansion distally, A, C367-1; raquet-shaped, B, C367-2), the ventrally curving ventral margin (A; C368-1), and the subtriangular process (D; C370-1). Abb.: acm, acromion; ca, coracoid articulation; db, distal blade. Scaled to same scapular length.