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The dentary bone that belonged to a supposedly larger individual has been used to extrapolate a length of 13.2 m (43 ft). Estimates for the most complete specimen range from a length of 12 to 13 m (39 to 43 ft), a skull 1.53 to 1.80 m (5.0 to 5.9 ft) in length, and a weight of 4.2 to 13.8 t (4.6 to 15.2 short tons). Giganotosaurus was one of the largest known terrestrial carnivores, but the exact size has been hard to determine due to the incompleteness of the remains found so far. The genus attracted much interest and became part of a scientific debate about the maximum sizes of theropod dinosaurs. A dentary bone, a tooth and some tracks, discovered before the holotype, were later assigned to this animal. The animal was named Giganotosaurus carolinii in 1995 the genus name translates as "giant southern lizard" and the specific name honors the discoverer, Rubén D. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993, and is almost 70% complete. Giganotosaurus ( / ˌ dʒ aɪ ɡ ə ˌ n oʊ t ə ˈ s ɔː r ə s/ JY-gə- NOH-tə- SOR-əs ) is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 97 million years ago.