Horusornithidae

The Horusornithidae are a prehistoric family of birds of prey. They are part of the Accipitriformes. Their name means "Horus-birds": the Egyptian god Horus was sometimes depicted as a falcon.

Horusornithidae
Temporal range: Late Eocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: †Horusornithidae
Mourer-Chauviré, 1991
Genus: †Horusornis
Mourer-Chauviré, 1991
Species:
†H. vianeyliaudae
Binomial name
†Horusornis vianeyliaudae
Mourer-Chauviré, 1991

Horusornis vianeyliaudae is the only known species. It lived approximately at the end of the Eocene, some 35 mya in what today is France. Its fossils were found in Quercy.

The relationships between falcons and other birds of prey (such as hawks and eagles) are not resolved to satisfaction. Horusornis may have been a "missing link" uniting falcons, hawks, and the secretarybird. If falcons are more distantly related to other birds of prey, the horusornithids would rather be basal relatives of hawks that somewhat resembled falcons due to convergent evolution.

References
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