PLATE 53. A–F Lioharpes ammari n in Devonian Harpetidae from the central and eastern Anti-Atlas, Morocco

PLATE 53. A–F Lioharpes ammari n. sp. (?), a small holaspid or late meraspid from an upper Emsian horizon, Tazoulait Formation, North flank of Jbel Ou-Driss (Fig. 2B, Map 4, site 25), dorsal exoskeleton of partial cephalon, NHMUK It 29266. A, dorsal view, B anterior view and C and D lateral views. E, dorsal view of brim perforations and F, laterodorsal view of eye lobe. G–L Eoharpes beningensis (Barrande 1872), from Dobrotivá beds, Llandeilo, Lower Ordovician Svatá Dobrovtivá central Bohemia. G–H partial dorsal exoskeleton, Museum of Comparative Zoology Harvard University, IP 173331. G dorsal view and H, lateral view. I–L partial dorsal exoskeleton, Museum of Comparative Zoology Harvard University, IP 173316. I, dorsal view and L, lateral view. J, dorsal view of brim perforations and K, lateral view of eye lobe and caeca on genal area. Scale bars shown represent 1 cm unless otherwise indicated.