Devincenzia is an extinct genus of giant flightless predatory birds in the family Phorusrhacidae or "terror birds" that lived during the Early Miocene (Deseadan) Fray Bentos Formation of Uruguay and Late Miocene (Huayquerian) Ituzaingó Formation to Early Pliocene (Montehermosan) of Argentina. The type species D. pozzi was formerly known as Onactornis pozzi. It stood about tall, making it one of the largest Phorusrhacids and carnivorous birds known. Etymology The generic name Devincenzia comes from Uruguayan museum director and zoologist Garibaldi Devincenzi (1882-1943) and the specific name of D. gallinali comes from Alejandro Gallinal, another Uruguayan scientist. The specific name of D. pozzi was after the lead taxidermist at the museum, Antonio Pozzi. History and taxonomy In 1931, a very large distal right tarsometatarsus associated with a ungual phalanx from digit II, was described by the Uruguayan Paleontologist Lucas Kraglievich as a new species of Phororhacos (a misspelling of Phorusrhacos), P. pozzi and deposited at the Museo Argentino de Ciencias Naturales Bernardino Rivadavia in Buenos Aires, Argentina under specimen numbers MACN-6554 and 6681. The fossils had been found in Lower Pliocene rock layers at El Brete in Cordoba, Argentina, specifically from the Mesopotamian. Later in the same paper, Kraglievich named a subspecies of Phororhacos (Phorusrhacos) longissimus mendocinus based on a partial proximal right femur from the Late Miocene Huayquerías Formation in Mendoza, Argentina. The subspecies has since been synonymized with Devincenzia pozzi. Kraglievich also referred a synphysis fragment to Phororhacos (Phorusrhacos) platygnathus, but the fossil has since been referred to Devincenzia pozzi. The next year, Kraglievich named a new genus and species of Phorusrhacid from Argentina based on a partial right tarsometatarsus of a juvenile individual (MNHN-M-189), naming it Devincenzia gallinali. The origin of the fossil is unknown, with Kraglievich initially speculating that it was from Uruguay, but the coloration corroborates with that of Patagonian fossils from the Miocene. Although they are sometimes considered distinct, Herculano Alvarenga and Elizabeth Höfling synonymized the two species in 2013 in their reassesment of Phorusrhacidae and moved P. pozzi to Devincenzia in the same paper. In August 1936 in a lagoon at Campo de Robilotte on Lake Epecuén, around 600 km southwest of the city of Buenos Aires, Antonio Castro collected a partial skull and two pedal phalanges of a large Phorusrhacid, as well as fossils of other Cenozoic fossil taxa like Xenarthrans and Macraucheniids. The fossils were sent to the Museo de la Plata,