Foro panarium

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.

Foro panarium Temporal range: Early Eocene (Ypresian-Lutetian)
Holotype
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

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 F. panarium was a stem-turaco.^[2]