Okanagrion angustum

Taxonavigation

Taxonavigation: Cephalozygoptera

Superregnum: Eukaryota Cladus: Podiata Cladus: Amorphea Cladus: Obazoa Cladus: Opisthokonta Cladus: Holozoa Cladus: Filozoa Cladus: Choanozoa Regnum: Animalia Subregnum: Eumetazoa Cladus: ParaHoxozoa Cladus: Bilateria Cladus: Nephrozoa Cladus: Protostomia Superphylum: Ecdysozoa Cladus: Panarthropoda Phylum: Arthropoda Cladus: Mandibulata Cladus: Pancrustacea Cladus: Allotriocarida Subphylum: Hexapoda Classis: Insecta Cladus: Dicondylia Subclassis: Pterygota Superordo: Odonatoptera Ordo: Odonata Subordo: †Cephalozygoptera

Superfamilia: †"Sieblosioid Group"
Familia: †Dysagrionidae
Subfamilia: †Dysagrioninae
Genus: †Okanagrion
Species: †Okanagrion angustum

Name

†Okanagrion angustum Archibald, S.B. & Cannings, R.A., 2021

Type material

• Holotype: RBCM.EH2017.050.11.2491
  • Repository: Royal British Columbia Museum, Belleville Street, Victoria, British Columbia, Canada
    • Collector: John Leahy, date unknown

Type locality

• Early Eocene, Ypresian; Eocene Okanogan Highlands; McAbee fossil beds, Tranquille Formation?, Kamloops Group; east of Cache Creek, Thompson-Nicola region, south-central British Columbia, Canada

Etymology

• "The specific epithet is the neuter form of the Latin angustus (-a, -um) meaning "narrow", referring to the distinctive wing shape of the species"

Distribution

Eocene

• Ypresian
• Eocene Okanagan Highlands
  • Tranquille Formation?, Kamloops Group; Hoodoo Face Beds, McAbee fossil site, east of Cache Creek, Thompson-Nicola region, British Columbia, Canada

References

• Archibald, S.B., Cannings, R.A., Erickson, R.J., Bybee, S.M. & Mathewes, R.W. 2021. The Cephalozygoptera, a new, extinct suborder of Odonata with new taxa from the early Eocene Okanagan Highlands, western North America. Zootaxa 4934(1): 1–133. DOI: 10.11646/zootaxa.4934.1.1 . Reference page. 
• Ware J.; Simonsen T.J.; Rasmussen J.A.; Archibald S.B. 2025. Systematics of the extinct suborder Cephalozygoptera (Odonata): a wing-based analysis comparing its genera with those of extant Zygoptera. American Museum Novitates 4043: 1–19.