Perryus

Perryus is a genus of phacopid trilobites that lived in what are now Canada, Greenland, and Siberia from the early Silurian to the middle Silurian from 438 to 430 mya, existing for approximately 8 million years.^[1]

Perryus Temporal range: Early Silurian-Middle Silurian ~438–430 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Perryus severnensis from the Attawapiskat Formation of Ontario; cranidium; holotype of the type species
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	†Artiopoda
Class:	†Trilobita
Order:	†Phacopida
Family:	†Encrinuridae
Genus:	†Perryus Gass & Mikulic 1982

Taxonomy

Perryus was named by Gass & Mikulic in 1982.^[2] Jell and Adrain list it as a currently valid genus name within the Phacopida, specifically within the Encrinuridae.^[3]

Species included

Perryus bartletti Edgecombe & Chatterton, 1992; Perryus globosus (Maksimova, 1962); Perryus mikulici Hughes & Thomas, 2014; Perryus severnensis Gass & Mikulic, 1982 (type species); Perryus palasso (Lane, 1988)