FIGURE 5 in Morphology and histology of acanthodian fin spines from the late Silurian Ramsåsa E locality, Skåne, Sweden

FIGURE 5. Low-resolution (voxel size: 5 µm) synchrotron data of fin spine morphotype D, including virtual thin sections of slice (1), 2596; (2), slice 2155; (3), slice 1524; (4), slice 886 and; (5), slice 222. (6), Segmented data that approximate to the scan slices 1-5, illustrating the vascularization and composition of the fin spine. (7), High-resolution (voxel size: 0.678 µm) synchrotron data 3D reconstruction illustrating the vascular organization of the fin spine. Scale bars equal 250 µm. Abbreviations: b, basal layer; cb; compact bone; cc, central canal; med.c, median canal; trab.d, trabecular dentine; vc, vascular canal.