Fig. 2From: Functional morphology of Grammatodon inaequivalvis (Goldfuss) and implications for evolutionary pathways in arcoidean bivalvesL/H-plot of the studied Grammatodon inaequivalvis (Goldfuss) specimens from the Opalinuston Formation of Northern Switzerland and Southern Germany (Early Aalenian). Among modern Arcoida, the line indicating L/H = 1.35 separates the shorter burrowing taxa from the elongated, byssally attached, epibenthic speciesBack to article page