Dolichometopidae is a family of trilobites that lived in the Cambrian, from the lower Botomian to the Dresbachian. It contains the following genera: * Aegunaspis * Amphoton * Anoria * Asperocare * Athabaskia * Athabaskiella * Atypicus * Basanellus * Bathyuriscidella * Bathyuriscus * Borovikovia * Centonella * Chilometopus * Chilonorria * Clavaspidella * Corynexochides * Deiradonyx * Dolicholeptus * Dolichometopsis * Dolichometopus * Drozdoviella * Erratobalticus * Ezhuangia * Fuchouia * Glossopleura * ?Granularaspis * Guraspis * ?Hanburia * Hemirhodon * Horonastes * Itydeois * Kannoriella * Klotziella * Lianhuashania * Mendospidella * Neopoliellina * Parapoliella * Poliella * Poliellaspidella * Poliellaspis * Poliellina * Politinella * Polypleuras