A New Basal Sauropod Dinosaur from the Middle Jurassic of Niger and the Early Evolution of Sauropoda
Figure 4
Spinophorosaurus nigerensis GCP-CV-4229/NMB-1699-R (holotype; A-E, H-N) and NMB-1698-R (paratype; F, G).
(A-C)— Contralateral spike-like osteoderms in dorsolateral (A), ventral (B), and cranial (C) views. (D, E)— Left coracoid (D) and scapula (E) in left lateral views. (F, G)— Right humerus in cranial (F) and distal (G) views. (H)— Left femur in caudal view. (I)— Left pubis in left lateral view. (J)— Left ischium in lateral view. (K, L)— Left tibia in proximal (K) and lateral (L) views. (M)— Left fibula in medial view. (N)— Left astragalus in proximal view. Scale bars = 10 cm (A–C, N) and 20 cm (D–M).