Extended Data Fig. 1: Percentages of PCA variances of six clades that are explained by the first 10 axes.

a–f, Percentages of PCA variances of ammonoids (a), brachiopods (b), ostracods (c), bivalves (d), gastropods (e), and conodonts (f).

a–f, Percentages of PCA variances of ammonoids (a), brachiopods (b), ostracods (c), bivalves (d), gastropods (e), and conodonts (f).