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The generic name Argentavis is derived from the Latin root argentum, “silver”, after the country of origin, and avis, “bird”, while the specific name magnificens, “magnificent”, refers to its size. In the description, Argentavis was classified as a member of Teratornithidae and was the first described from South America. [3]
Argentavis magnificens. [5] A partial skeleton of this enormous teratorn was found from La Pampa, Argentina. It is one of the largest flying birds known to have existed, only likely exceeded by measurement of wingspan by Pelagornis sandersi, discovered in 1983. [6]
Many of the largest flying birds in the fossil record may have been members of the Ciconiiformes. The heaviest flying bird ever, Argentavis magnificens, is part of a group, the teratorns, that is considered an ally of the New World vultures. [86] The largest ibis is the giant ibis (Thaumatibis gigantea). Adults can grow to 102–106 cm (40–42 ...
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The heaviest bird ever capable of flight was Argentavis magnificens, the largest member of the now extinct family Teratornithidae, found in Miocene-aged fossil beds of Argentina, with a wingspan up to 5.5 m (18 ft), a length of up to 1.25 m (4.1 ft), a height on the ground of up to 1.75 m (5.7 ft) and a body weight of at least 71 kg (157 lb).
The Cerro Azul Formation (Spanish: Formación Cerro Azul), also described as Epecuén Formation, is a geological formation of Late Miocene (Tortonian, or Huayquerian in the SALMA classification) age in the Colorado Basin of the Buenos Aires and La Pampa Provinces in northeastern Argentina.
The partial humerus described in the 1999 paper also differs from that of T. merriami and that of Argentavis magnificens in a number of ways, but most prominently in the fact that the facies dorsalis is fairly flat for the length of the attachment of the M. latissimus dorsi, becoming slightly convex near its distal end, and that the facies ...
With a wingspan of 5.5 to 6 metres (18 to 20 ft) and a height of 1.2 metres (3.9 ft) when on the ground, Osteodontornis orri and similar giant pseudotooth birds [3] were the second-largest flying birds known, surpassed only by the teratorn Argentavis magnificens.