Fig. 9From: Stalked crinoids from Gan (Late Ypresian, southwestern France): exceptional stereom preservation, paleoecology and taxonomic affinitiesBiometrical graph of columnals from Tuilerie de Gan (Late Ypresian) and northeastern Italy (Middle Lutetian) with D/d plotted against d’ (growth index). See Fig. 8 for captionBack to article page