Amphoton bicknelli

Order Corynexochida / Suborder Corynexochina / Family Dolichometopidae

amph, amphi-, Greek, both sides, double; oto, Greek, ear

Honouring R. Bicknell (American Museum of Natural History) for the precious friendship of introducing the first author (Smith P. M.) To the other author (Cooper R. A.).

Cranidium nearly square, strongly convex; glabella subrectangular, sides parallel, strongly convex, extending to the border furrow, with four pairs of glabellar furrows: S1 and S2 distinct and deep, S3 and S4 faint or absent; anterior margin of glabella evenly rounded; dorsal furrow narrow and deep; occipital ring broad medially; occipital furrow broad; anterior border of moderate width; anterior border furrow narrow and deep; palpebral lobe long and strongly curved; posterior border narrow (trans versely). Pygidium semi-ovate; axis strongly convex, with two distinct rings (bearing median nodes) and a nearly crescentic terminal piece; pleural regions strongly convex, with three broad pleural furrows; border of mod erate width, slightly concave and arched medially.