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Foro panarium; Temporal range: Early Eocene (Ypresian-Lutetian)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Musophagiformes
Family:	incertae sedis
Genus:	†Foro; Olson, 1992
Species:	†F. panarium
Binomial name
	†Foro panarium; Olson, 1992

Foro panarium is an extinct bird of disputed taxonomic status that lived during the early to mid-Eocene around the Ypresian-Lutetian boundary, some 48 million years ago. F. panarium is known from fossils found in the Green River Formation of Wyoming.

The taxonomical relations of F. panarium remain unclear. It is sometimes placed in a distinct family Foratidae. It was considered possibly related to cuckoos, turacos and/or the puzzling hoatzin of the Amazon.^[1] A phylogenetic analysis conducted by Field & Hsiang (2018) indicated that Foro panarium was a stem-turaco.^[2]

References

^ Olson, Storrs L. (1992). "A new family of primitive landbirds from the early Eocene Green River Formation of Wyoming". Natural History Museum of Los Angeles County Science Series. 36: 127–136.
^ Daniel J. Field; Allison Y. Hsiang (2018). "A North American stem turaco, and the complex biogeographic history of modern birds". BMC Evolutionary Biology. 18 (1): 102. Bibcode:2018BMCEE..18..102F. doi:10.1186/s12862-018-1212-3. PMC 6016133. PMID 29936914.

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[1] Olson, Storrs L. (1992). "A new family of primitive landbirds from the early Eocene Green River Formation of Wyoming". Natural History Museum of Los Angeles County Science Series. 36: 127–136.

[2] Daniel J. Field; Allison Y. Hsiang (2018). "A North American stem turaco, and the complex biogeographic history of modern birds". BMC Evolutionary Biology. 18 (1): 102. Bibcode:2018BMCEE..18..102F. doi:10.1186/s12862-018-1212-3. PMC 6016133. PMID 29936914.

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