FIGURE 10 in New discovery of rhyncholites and conchorhynchs (cephalopod jaw elements) from the Upper Cretaceous Mount Laurel Formation of Delaware

FIGURE 10. Results of principal component analysis using the six parameters L, W, H, Ls, Ws, Lh, and β. The original data are from preciously published papers (Till, 1909; Van Der Tuuk, 1985; Riegraf and SchmittRiegraf, 1995; Komarov, 2005a, 2005b; Košťák et al., 2010; Weaver et al., 2012)