FIGURE 32. Rhadinacanthus longispinus. 1-2, NMS G.1966.49.9 in The diplacanthid fishes (Acanthodii, Diplacanthiformes, Diplacanthidae) from the Middle Devonian of Scotland

FIGURE 32. Rhadinacanthus longispinus. 1-2, NMS G.1966.49.9 from Orkney, pectoral region and head; 3-4, NMS G.1891.92.334 from Orkney, pectoral region and head; 5–7, isolated scapula NMS G.2014.15.2 from Marwick: 5,?medial view; 6,?lateral view, with 7, area with remnants of pinnal plate fused to scapula base. Scale bars equal 1 cm. Abbreviations: adm.s=admedian spine; lt.sc=left scapula; lt.p.fs= left pectoral fin spine; p.p=pinnal plate; rt.p.fs=right pectoral fin spine; rt.sc=right scapula.