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Kelenken is the largest known phorusrhacid, about 10% larger than the largest phorusrhacids previously known, such as Phorusrhacos. The holotype skull is about 716 mm (2.3 ft) long from the tip of the beak to the center of the sagittal nuchal crest at the upper back of the head (a size likened to the size of a horse 's skull), making it the ...
Subfamily Phorusrhacinae — giant species 8.3 feet (2.5 m) high (Kelenken up to 9.8 feet (3.0 m) high [44]), but somewhat slender and decidedly more nimble than the Brontornithinae Genus Devincenzia (Miocene to Early Pliocene, possibly up to Early Pleistocene) [45] [5]
Kelenken is a genus of phorusrhacid, an extinct group of large, predatory birds, which lived in what is now Argentina about 15 million years ago. The only known specimen was discovered by high school student Guillermo Aguirre-Zabala in Patagonia, and was made the holotype of the new genus and species Kelenken guillermoi in 2007.
Kelenken is a genus of phorusrhacid, an extinct group of large, predatory birds, which lived in what is now Argentina about 15 million years ago. The only known specimen was discovered by high school student Guillermo Aguirre-Zabala in Patagonia, and was made the holotype of the new genus and species Kelenken guillermoi in 2007.
The species was classified in the subfamily Phorusrhacinae, which includes some of the last and largest phorusrhacids like Devincenzia and Kelenken. Like all phorusrhacids, Titanis had elongated hind limbs, a thin pelvis, proportionally small wings, and a large skull with a hooked beak.
Holotype mandible. Remains are known from several localities in the Santa Cruz Formation and Monte León Formation in Santa Cruz Province, of Argentina. [2] Among the bones found in the strata of the Santa Cruz Formations (now considered as mainly of mid-Miocene date) was the piece of a mandible which Florentino Ameghino discovered in early 1887 and the same year at first described as that of ...
In 1931, a very large distal right tarsometatarsus associated with an 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.
Gastornis is an extinct genus of large, flightless birds that lived during the mid-Paleocene to mid-Eocene epochs of the Paleogene period. Most fossils have been found in Europe, and some species typically referred to the genus are known from North America and Asia.