FIGURE 12. Normalised vertebral position (cervicals 0-1; dorsals 1-2; caudals 2-3) plotted against vertebral length index (VLI) for Australian plesiosaurians and non-Australian elasmosaurids. Data for QM F3567 and RM FR271 from Sachs (2004); Opallionectes andamookaensis from Kear (2005a); Elamosaurus platyurus, Thalassomedon haningtoni, Callawayasaurus colombiensis, and Cm Zfr 115 from O'Keefe and Hiller (2006); Vegasaurus molyi from O'Gorman el. (2015); AMNH FARB 1495, AMNH FARB 5835, and AMNH FARB 2554 from Otero (2016); Aristonectes parvidens from O'Gorman (2016a); Kawanectes lafquenianus from O'Gorman (2016b); Lagenanectes richterae from Sachs et al. (2017), and Jucha squalea from Fischer et al. (2020).

Published as part of Vakil, Vikram, Webb, Gregory & Cook, Alex, 2021, Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae, pp. 1-44 in Palaeontologia Electronica (a30) 24 (3) on page 17, DOI: 10.26879/1095, http://zenodo.org/record/12709667