FIGURE 8 in Geometric morphometrics in ammonoids based on virtual modelling

FIGURE 8. Morphospace formed by the first two PCs found in this study showing the location for each specimen in Table 3. The virtual whorl cross-sections of the PC-score values are illustrated below the axis. Combinations of these PC values are shown in the extremes of the morphospace. Evolute ammonoids are confined to a region to the left, this could be caused by a lack of subevolute specimens in the original sample.