Encrinurus

Encrinurus Temporal range: Mid Ordovician-Early Devonian ~472–412.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Fossil of E. egani from the Racine Dolomite
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Family:	Encrinuridae
Genus:	Encrinurus Emmrich 1844

Encrinurus is a long-lived genus of phacopid trilobites that lived in what are now Africa, Asia, Australia, Europe, North America, and South America from the middle Ordovician to the early Devonian from 472 to 412.3 mya, existing for approximately 59.7 million years.^[1]