FIGURE 5. Patterns of functional morphospace occupation for marine reptiles through the Mesozoic. Two-dimensional plots of PCOa axes 1 and 2 are illustrated for nine sampled intervals: Anisian, Carnian, Norian, Hettangian–Sinemurian, Aalenian– Bathonian, Kimmeridgian–Tithonian, Berriasian–Barremian, Cenomanian–Turonian, and Campanian. Symbols are used to represent the major groups. The temporal position of each sampled interval is illustrated in a disparity through time plot based on the sumof variances and sum of ranges (dotted line) metrics. All 16 intervals are figured in Supplementary Figure 7.
disparate functional morphotypes persist into the Norian, despite reduced diversity. In the Jurassic, morphospace occupation is relatively
restricted and consistent. As highlighted by the partial disparity analyses (Fig. 3C), the clear increase in disparity between the Early and Late
