| Physornis Temporal range: Middle - Late Oligocene |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Cariamiformes |
| Family: | Phorusrhacidae |
| Genus: | Physornis |
| Species: | P. fortis |
| Binomial name | |
| Physornis fortis Ameghino, 1895 |
|
Physornis is an extinct genus of giant flightless predatory birds of the family Phorusrhacidae or "terror birds" that lived in Argentina. The only known species is Physornis fortis. It lived from 28 to 23 million years ago.