PLATE 2. A–D in Devonian Harpetidae from the central and eastern Anti-Atlas, Morocco

PLATE 2. A–D Harpes cf. boudibensis, from horizon 7, Section 1 (Fig. 6), El Otfal Formation, Eifelian, Jbel Ou-Driss (Fig. 2B, Map 4, site 11). An enrolled dorsal exoskeleton NHMUK It 29225. A, dorsal, B, lateral and C, anterior view. D, dorsal view of brim perforations. E–M Harpes oudris, from horizon 5, Section 1 (Fig. 6), El Otfal Formation, Eifelian, Jbel Ou-Driss (Fig. 2B, Map 4). E–H, enrolled dorsal exoskeleton, paratype, NHMUK It 29240 (site 21). E, dorsal, F, lateral and G, anterior view. H, dorsal view of brim perforations. I–M Harpes oudris, enrolled dorsal exoskeleton, holotype, NHMUK It 29241 (site 22). I, dorsal, J, lateral and K, anterior view. L, dorsal view of brim perforations and M, lateral view of eye lobe. Scale bars shown represent 1 cm unless otherwise indicated.