Fig. 4 in Youngest occurrences of rhomaleosaurid plesiosaurs indicate survival of an archaic marine reptile clade at high palaeolatitudes

Fig. 4. Dorsal centra of the plesiosaur Rhomaleosauridae indet. from the Lower Callovian Hlebnovka Formation of "Konnyi barak" ravine, Russia. SGM 1445-108 (A) and SGM 1445-107 (B), in anterior (A 1, B 1), posterior (A 2, B 2), dorsal (A 3, B 3), ventral (A 4, B 4), left lateral (A 5), and right lateral (B ) views.