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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.
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.
Prehistoric Predators is a 2007 National Geographic Channel program based on different predators that lived in the Cenozoic era, including Smilodon and C. megalodon.The series investigated how such beasts hunted and fought other creatures, and what drove them to extinction.
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 ...
Patagorhacos is an extinct genus of medium-sized phorusrhacid from the early Miocene of Patagonia.Currently only the single species Patagorhacos terrificus is known, which is represented by two highly fragmentary specimen, one belonging to the back of the skull and the other being the distal end of a leg bone.
Walking with Beasts, marketed as Walking with Prehistoric Beasts in North America, is a 2001 six-part nature documentary television miniseries created by Impossible Pictures and produced by the BBC Science Unit, [4] the Discovery Channel, ProSieben and TV Asahi.