Fig. 10 in The early evolution of postcranial skeletal pneumaticity in sauropodomorph dinosaurs

Fig. 10. Vertebrae of the Spion Kop sauropod from the Lower Jurassic Elliot Formation of South Africa. A. Posterior dorsal vertebra, BP/1/6183a in posterior view (A1). Close−up of left (A2) and right (A3) posterior infradiapophyseal fossae. Note that the right subfossa cannot be seen in A1 due to the oblique distortion of the specimen. B. Cervical vertebra,?C3, BP/1/6199 in left lateral view.