Published September 26, 2014
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FIG. 14 in The Early Devonian acanthodian Euthacanthus macnicoli Powrie, 1864 from the Midland Valley of Scotland
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FIG. 14. — Euthacanthus macnicoli Powrie, 1864 NMS G.2013.8.1, thin sections of individual scales in serial sections of an articu- lated, moderate sized specimen from Tillywhandland: A-C, sections in the pectoral region; A, vertical longitudinal section with three crown growth zones; B, median vertical longitudinal section along a groove between crown ridges; C, vertical transverse section with three growth zones; D, E, vertical transverse sections in the anterior midflank region; F-H, sections in the midbody midflank region; F, oblique section; G, H, vertical transverse sections; I-K, sections in the posterior midflank region between the posterior dorsal and anal fin spines; I, vertical transverse section; J, K, vertical longitudinal section; L-N, sections in the caudal peduncle-midtail region; L, M, vertical transverse section; N, vertical longitudinal section. Abbreviations: bcl, bone cell lacunae; igl, incremental growth lines; m, mesodentine; Sf, Sharpey's fibres; Sg, Stranggewebe; vc, vascular canal. Scale bars: A, L, 0.05 mm; B-K, M, N, 0.1 mm.
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Published as part of Newman, Michael J., Burrow, Carole J., Den Blaauwen, Jan L. & Davidson, Robert G., 2014, The Early Devonian acanthodian Euthacanthus macnicoli Powrie, 1864 from the Midland Valley of Scotland, pp. 321-348 in Geodiversitas 36 (3) on page 339, DOI: 10.5252/g2014n3a1, http://zenodo.org/record/4538455Files
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