FIGURE 4 in Morphology and histology of acanthodian fin spines from the late Silurian Ramsåsa E locality, Skåne, Sweden

FIGURE 4. High-resolution (voxel size: 0.678 µm) synchrotron data of fin spine morphotype C, including virtual thin sections of (1), slice 1377; (2), slice 992; and (3), slice 12. (4-6) Reconstructions of the scanned fin spine showing the ornamentation. (7), Fin spine vascularization deconstructed into different parts and, (8), show all parts of the vascularization together, (9), in cross-sectional view with all canals from the scan, and (10), in cross-sectional view of isolated number of canals. (7-10) use the same colors. Scale bars equal 300 µm. Abbreviations: bas.c, basal canal; den, denticle; cc, central cavity; med.c, median canal; nod.c, node canals; r, ribbing; rib.c, ribbing canals; s, sulcus; trab.c, trabecular dentine canals.