Fig. 10From: 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 H/D plotted against D/d. See Fig. 8 for caption. Columnals A and B displaced from distal stalk segments of Fig. 4 are joined by thin linesBack to article page