Fig. 4 in The early evolution of postcranial skeletal pneumaticity in sauropodomorph dinosaurs

Fig. 4. Cervico−dorsal transition of the vertebral column of the basal sauropodomorph Plateosaurus engelhardti Meyer, 1837, AMNH 6810 from the Upper Triassic Loewenstein Formation of the Trossingen Quarry, Germany. A. The posterior cervical vertebrae, C9 and 10 (left and middle) and the first dorsal vertebra, D1 (right) in left lateral view. B. Close−up of the pneumatic fossa on the dorsal surface of C10.