FIG. 20 in Devonian acanthodians from Severnaya Zemlya Archipelago (Russia)

FIG. 20. — Drawings of scales; A-G, Nostolepis fragilis n. sp., holotype; A-C, LIG 35-1275, crown (A), side (B) and base (C), anterior upwards (A, C) and to left (B); D, E, LIG 35-1276, crown (D, anterior upwards) and side (E, anterior to left); F, G, LIG 35-1277 and 35-1279, crowns, anterior upwards. For locality and stratigraphic arrangement see Fig. 19; H-J, Diplacanthus solidus n. sp.; H, I, holotype, LIG 35-1283 crown (H, anterior upwards) and side (I, anterior to left); J, LIG 35-1285, crown, anterior upwards, Matusevich River, outcrop 5, bed 151 (top), Vstrechnaya Formation; K, L, Diplacanthus carinatus Gross, 1973, crowns, anterior upwards; K, LIG 35-1254; L, LIG 35-1282, Matusevich River, outcrop 5, bed 149, Vstrechnaya Formation; M-O, Cheiracanthus sp. cf. Ch. longicostatus Gross, 1973; M, LIG 35-1286, crown, anterior upwards; N, O, LIG 35-1284 crown, anterior upwards (N) and side, anterior to left (O). Matusevich River, outcrop 5, bed 153 (M) and top of bed 151 (N, O), Vstrechnaya Formation. Abbreviation: fos, fossa. Scale bars: 0.5 mm.