Fig. 1 in The completeness of the fossil record of plesiosaurs, marine reptiles from the Mesozoic

Fig. 1. Two of the three different morphotypes used in Plesiosauria in this analysis, demonstrating the different regions used in skeletal completeness metrics. A. Cryptoclidus, a "plesiosauromorph". B. Liopleurodon, a "pliosauromorph". Skeletal regions: i, skull and mandible; ii, cervical vertebrae and ribs; iii, dorsal and sacral vertebrae and ribs; iv, pectoral girdle; v, fore limbs; vi, pelvic girdle; vii, hind limbs; viii, caudal vertebrae and ribs. Outlines modified from O'Keefe (2002). Not to scale.