Fig. 9 in An integrated approach to understanding the role of the long neck in plesiosaurs

Fig. 9. The range of movement available to the plesiosaur neck in Seeleyosaurus (formerly Plesiosaurus guilelmi imperatoris) (A, B) and Elasmosaurus C) as illustrated by Zarnik (1925–1926), which is radically different from that proposed in the present paper. A. Right lateral view showing neutral position (A2), interpreted maximum dorsal (A1) and ventral (A3) flexion. B, C. Dorsal view, showing the neutral position (B2, C2), extreme left lateral flexion B2, C2), and maximum sinusoidal alternating lateral flexion (B3, C3). Images from Zarnik (1925–1926: figs. 18–20).