Encrinuridae

Encrinuridae is a family of trilobite within the order Phacopida that lived in what would be Africa, Asia, Australia, Europe, North America, and South America from the middle Ordovician to the early Devonian from 479 to 412.3 million years ago, existing for approximately 66.7 million years.^[1]

Encrinuridae Temporal range: Middle Ordovician–Early Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Fossil of Encrinurus egani from the Racine Dolomite
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	†Artiopoda
Class:	†Trilobita
Order:	†Phacopida
Suborder:	†Cheirurina
Family:	†Encrinuridae Angelin, 1854

Taxonomy

Encrinuridae was named by Angelin (1854). It was assigned to Phacopida by Gregory Edgecombe (1994).^[2] It contains the following genera:^[3]

• †Aegrotocatellus
• †Alwynulus
• †Atractocybeloides
• †Atractopyge
• †Avalanchurus
• †Balizoma
• †Batocara
• †Bevanopsis
• †Billevittia
• †Brianurus
• †Celtencrinurus
• †Coronaspis
• †Coronocephalus
• †Cromus
• †Curriella
• †Cybele
• †Cybeloides
• †Cybelurus
• †Dayongia
• †Deacybele
• †Dindymene
• †Distyrax
• †Dnestrovites
• †Elsarella
• †Encrinuroides
• †Encrinurus
• †Eodindymene
• †Erratencrinurus
• †Fragiscutum
• †Frammia
• †Frencrinuroides
• †Johntempleia
• †Kailia
• †Koksorenus
• †Langgonia
• †Lasaguaditas
• †Libertella
• †Lyrapyge
• †Mackenziurus
• †Mitchellaspis
• †Nucleurus
• †Oedicybele
• †Paracybeloides
• †Paraencrinurus
• †Parakailia
• †Perirehaedulus
• †Perryus
• †Physemataspis
• †Plasiaspis
• †Prophysemataspis
• †Prostrix
• †Rielaspis
• †Rongxiella
• †Sinocybele
• †Staurocephalus
• †Stiktocybele
• †Struszia
• †Tewonia
• †Walencrinuroides
• †Wallacia

Fossil distribution

Fossils were found in strata dating from the Arenig to Lochkovian ages. Locations were varied and stretched from Florentine Valley, Tasmania to Xinjiang Province, China to Will County, Illinois.