FIG. 11 in The Early Devonian Acanthodian Uraniacanthus curtus (Powrie, 1870) n. comb. from the Midland Valley of Scotland

FIG. 11. — Uraniacanthus curtus (Powrie, 1870) n. comb., NMS G.1964.31.30A, an incomplete moderate sized specimen from Hayston Hill, Angus, Scotland. Various thin sections of scales: A, vertical longitudinal section; B, vertical longitudinal section with the anterior of the crown missing; C, vertical transverse section; D, vertical transverse section; E, mid crown horizontal section; F, low crown horizontal section. Abbreviations: ac, ascending canal; cc, circular canal; cz, crown growth zone; dt, dentine tubules; lc, longitudinal canal; p, pore opening; rc, radial canal. Scale bars: 0.1 mm.