Zacallites

Zacallites is a genus of extinct damselflies in the family Zacallitidae. The genus was created for the species Zacallites balli from the Eocene Green River Formation of Colorado.^[2] Another species Zacallites cockerelli was also described from the same area in 2020.^[3]

Zacallites Temporal range: Ypresian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Odonata
Suborder:	Zygoptera
Family:	Zacallitidae Cockerell, 1928[1]
Genus:	Zacallites Cockerell, 1928

Two Eocene Okanagan Highlands fossils from the Klondike Mountain Formation at Republic, Washington were tentatively identified as Zacallites sp. by Standley Lewis (1992). However, redescription of the fossils by S. Bruce Archibald and Robert Cannings (2021) moved specimen UWBM 72289 to the dysagrionid genus Okanagrion and specimen SCSU7B-16 to the whetwhetaksid genus Whetwhetaksa.^[4]

References

1. "The Paleobiology Database". Archived from the original on 2007-10-01. Retrieved 2012-12-28.
2. Fraser, Lt.-Col. F. C. (2009). "A Note on the Classification of Zacallites Balli Cockerell (Upper Eocene) (Order Odonata)". Proceedings of the Royal Entomological Society of London. Series B, Taxonomy. 9 (4): 62–64. doi:10.1111/j.1365-3113.1940.tb00346.x.
3. Bechly, Günter; Garrouste, Romain; Aase, Arvid; Karr, Jered A.; Grande, Lance; Nel, André (2020). "The damselfly palaeofauna from the Eocene of Wyoming and Colorado, USA (Insecta, Odonata, Zygoptera)". Papers in Palaeontology. 7 (3): 1373–1402. doi:10.1002/spp2.1346. S2CID 229441628.
4. 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): zootaxa.4934.1.1. doi:10.11646/zootaxa.4934.1.1. PMID 33756770. S2CID 232337536.