Name: Physornis (Nature bird).
Phonetic: Fys-or-niss.
Named By: Ameghino - 1895.
Classification: Chordata, Aves, Cariamae, Phorusrhacidae, Brontornithinae.
Species: P. fortis (type).
Diet: Carnivore.
Size: Uncertain, but probably over 2 meters high.
Known locations: Argentina.
Time period: Chattian of the Oligocene.
Fossil representation: Single specimen.

       As a member of the Brontornithinae group of terror birds Physornis was one of the larger and more robust members of the larger group, the Phorusrhacidae. As such it would have been related to Paraphysornis and Brontornis, and living during the Oligocene it was one of the earliest terror birds to roam and hunt in South America.


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