Acimetopus[2] is a genus of eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi (1943),[3] Order Agnostida Salter (1864).

Acimetopus bilobatus Rasetti, 1966, from his locality cs-4 in limestone beds which form several outcrops on a hillside at Griswold Farm, about 1 mile southeast of North Chatham, Columbia County, New York State, USA; the associated faunule is referred to as the Acimetopus bilobatus faunule due to the nominate species being one of the most common and characteristic trilobites.

[6] Like in all Agnostida, the body of Acimetopus is diminutive, the headshield (or cephalon) and tailshield (or pygidium) are approximately the same size (or isopygous).

The central raised area of the cephalon, called the glabella, is strongly divided by two deep furrows that merge when crossing the midline.

[6] Acimetopus bilobatus occurs in association with other Weymouthiidae including (Acidiscus, Analox, Bathydiscus, Bolboparia, Leptochilodiscus, Serrodiscus), Calodiscus, and several species of Olenellus Billings, 1861, and Bonnia Walcott, 1916 (Family Dorypygidae).