Figure 4
Comparative analysis of whole-body CoM position vs. body mass in Sauropodomorpha, with Mussaurus ontogenetic trajectory data (Fig. 3; Table 2) mapped onto interspecific convex hull-based modelling data from4 (see Supplementary Table S3). All sauropods included clearly were quadrupedal, whereas Plateosaurus and possibly Lufengosaurus are considered bipedal as adults (and have CoM values close to that of the Mussaurus adult). Three theropods (unambiguous bipeds) of varying masses (spline-based model data from4,32) are also included for comparisons. Mussaurus spline-based model data points are shown for the maximal cranial and maximal caudal models (Table 2), which refer to the modifications of body segments in sensitivity analyses representing (as relatively implausible extremes) maximum caudal and cranial CoMs.
