Fig. 16. Mesosaurus tenuidens Gervais, 1865, metacarpal and phalanx measurements. A–E. Metacarpal and phalanx lengths measured in each1st–5th finger. Black dashed lines represent the empirical curves pn = ct /(n+1) and red dotted lines represent the empirical curve px = ct /[(n+1)*1.2] for the largest and smallest measured finger, where ct is the length of the metacarpals and pn is the length of the n-th phalanx. F. Lengths are normalized by the respective metacarpal length in all the measured fingers. Black line shows the mean normalized length; black dash-dotted line represent the 2σ interval. Red dotted line represents the empirical curve pn = ct/[(n+1)*1.2]. The number of individuals measured (N) is indicated in the upper corner of each graph. Abbreviations: mc, metacarpals; p1–p5, phalanges.