Cheirurus

Cheirurus (from Greek χείρ, cheir meaning "hand" and ουρά, oura meaning "tail") is a genus of phacopid trilobites that lived from the Ordovician to the Devonian.^[1][2] Its remains have been found in Africa, Asia, Australia, Europe, and North America. Cheirurus is the type genus of Cheiruridae.

Cheirurus Temporal range: Ordovician–Middle Devonian PreꞒ Ꞓ O S D C P T J K Pg N
C. ingricus, National Museum of Natural History
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Family:	Cheiruridae
Genus:	Cheirurus Beyrich, 1845
Species
Cheirurus dilatatus Raymond, 1916 Cheirurus glaber Angelin, 1854 Cheirurus niagarensis Hall, 1868 Cheirurus patens Raymond, 1916