Alokistocaridae

Alokistocaridae; Temporal range:
	Elrathia kingii, an Alokistocarid
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Subclass:	Librostoma
Order:	Ptychopariida
Suborder:	Ptychopariina
Superfamily:	Ptychopariacea
Family:	Alokistocaridae; Resser, 1939
genera
	Alokistocare Lorenz, 1906 = Amecephalus, Strotocephalus; Alokistocarella Resser, 1938; Amecephalina Poulsen, 1927; Annamitia Mansuy, 1916; Arellanella Lochman, 1948; Bythicheilus Resser, 1939; Chancia Walcott, 1924; Chelidonocephalus King, 1937; Dunderbergia Walcott, 1924; Ehmania Resser, 1935; Ehmaniella Resser, 1937 = Anomalocephalus, Clappaspis; Elrathia Walcott, 1924; Elrathiella Poulsen, 1927 = Coelaspis, Glassocoryphus; Elrathina Resser, 1937; Inglefieldia Poulsen, 1927 ; Ithyektyphus Shaw, 1956; Kistocare Lochman, 1948; Kochiella Poulsen, 1927 ; Kochina Resser, 1935; Kounamkites Poletaeva & Chernysheva, 1956; Kujandaspis Ivshin, 1956; Megadunderbergia Kobayashi, 1938; Mexicella Lochman, 1948; Orlovia Walcott & Resser, 1925; Pachyaspis Resser, 1939; Parehmania Deiss, 1939 = Mcnairia, Rowia, Thompsonaspis; Perioura Resser, 1938; Proveedoria Lochman, 1948; Ptychoparopsis Hupé, 1953; Trachycheilus Resser, 1945;

Alokistocaridae is a family of ptychopariid trilobites that lived from the Botomian epoch of the Early Cambrian until the Late Cambrian. Alokistocarids were particle feeders and left small furrows which are occasionally preserved. Their remains are found worldwide. Elrathia kingii, one of the most collected trilobites in the world, is a typical alokistocarid.

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