Perryus

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
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	† Trilobita
Order:	† Phacopida
Family:	† Encrinuridae
Genus:	† Perryus Gass & Mikulic 1982

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]

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)

References

• Paleontology portal

1. Fossilworks: Perryus, basic info
2. Gass, Kenneth C.; Mikulic, Donald G. (1982). "Observations on the Attawapiskat Formation (Silurian) trilobites of Ontario, with description of a new encrinurine". Canadian Journal of Earth Sciences. 19 (3): 589–596. Bibcode:1982CaJES..19..589G. doi:10.1139/e82-047.
3. Jell, P. A.; Adrain, J. M. (2003). "Available generic names for trilobites". Memoirs of the Queensland Museum. 49 (2): 331–551.