Praepapilio

Praepapilio; Temporal range: Lutetian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Papilionidae
Subfamily:	†Praepapilioninae; Tindale, 1984
Genus:	†Praepapilio; Durden and Rose, 1978
Species
	2; see text

Praepapilio is an extinct genus of swallowtail butterfly from the middle Eocene deposits of Colorado, United States, comparable to the Lutetian epoch in age. The genus is considered to be the only representative of the fossil subfamily Praepapilioninae.^[1]^[3]

Praepapilio is, so far, the only wholly extinct subtaxon known within the swallowtail family. Two species have been described, each from a single fossil find.

Species

P. colorado

The holotype of P. colorado, the type species of the genus, is from the Middle Eocene-aged Green River Shale, Parachute Creek Member, near Raydome, Colorado. Durden and Rose, in their 1978 paper, compare P. colorado to the extant Baronia brevicornis, and suggest that P. gracilis may be the same species as P. colorado, and that the differences between the two are possibly due to sexual dimorphism.

P. gracilis

As with P. colorado, the holotype of P. gracilis was from the same site in Colorado. It differs from the type species in being smaller and more gracile in form, though anatomical differences may be due to sexual dimorphism.

References

^ ^a ^b Durden, C.J., and H. Rose. 1978. Butterflies from the middle Eocene: the earliest occurrence of fossil Papilionidae (Lepidoptera). Pearce-Sellards Ser. Tex. Mem. Mus. 29: 1-25.
^ Rienk de Jong (2007). "Estimating time and space in the evolution of the Lepidoptera" (PDF). Tijdschrift voor Entomologie. 150 (2): 319–346. doi:10.1163/22119434-900000233.
^ Collins, N. Mark; Morris, Michael G. (1985). Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book. Gland & Cambridge: IUCN. ISBN 978-2-88032-603-6 – via Biodiversity Heritage Library.

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[durdenrose-1] Durden, C.J., and H. Rose. 1978. Butterflies from the middle Eocene: the earliest occurrence of fossil Papilionidae (Lepidoptera). Pearce-Sellards Ser. Tex. Mem. Mus. 29: 1-25.

[2] Rienk de Jong (2007). "Estimating time and space in the evolution of the Lepidoptera" (PDF). Tijdschrift voor Entomologie. 150 (2): 319–346. doi:10.1163/22119434-900000233.

[Threatened-3] Collins, N. Mark; Morris, Michael G. (1985). Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book. Gland & Cambridge: IUCN. ISBN 978-2-88032-603-6 – via Biodiversity Heritage Library.

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