Physornis

Physornis; Temporal range: Mid-Late Oligocene (Deseadan); ~29.2–26.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Cariamiformes
Family:	†Phorusrhacidae
Subfamily:	†Brontornithinae
Genus:	†Physornis
Species:	†P. fortis
Binomial name
	†Physornis fortis; Ameghino 1894
Synonyms
	Aucornis Ameghino 1898;

Physornis is an extinct genus of giant flightless predatory birds of the family Phorusrhacidae or "terror birds", within the subfamily Brontornithinae, that lived in Argentina. The type species is P. fortis. It lived during the Middle to Late Oligocene (Deseadan). Fossils of Physornis have been found in strata of 29.2 to 26.3 million years old, belonging to the Sarmiento Formation.[1]

References