FIG. 19 in New observations on Upper Devonian brachiopods from the Namur-Dinant Basin (Belgium)

FIG. 19. — Comparison between Monelasmina sp. A (loc. BM-2002-5, Les Valisettes Formation) and Monelasmina deshayesi (Rigaux, 1873) (according to Brice's (1981) measurements of specimens from Boulonnais). Scatter diagrams of shell width (W) to shell length (L), shell width to shell thickness (T); frequency diagrams of W/L and T/W. Dotted lines indicate the means.