Height 164 mm

suggesting that it was an active hunter in low-light areas

leaving deep marks in the earth

suggesting that it was an agile and fast terrestrial predator

Although they feed calmly

Brontornis burmeisteri gazella Height 164 mmMorphological description and paleoecological considerations of Brontornis burmeisteri (Aves, Phorusrhacidae?) from the Miocene of Argentina Brontornis burmeisteri , one of the most impressive fossil birds in the South American record, is known from remains found in Middle Miocene sediments (approximately 17 to 15 million years ago) in the Santa Cruz Formation, located in Argentine Patagonia. Initially assigned to the family Phorusrhacidae, this taxon