Chubutisaurus

Chubutisaurus (meaning "Chubut lizard") is a genus of somphospondylan sauropod dinosaur from the Late Cretaceous (Cenomanian) Cerro Barcino Formation of Argentina. The type species, Chubutisaurus insignis, was described by del Corro in 1975. Chubutisaurus had a more robust radius than Venenosaurus. In 2010 Gregory S. Paul gave a length of and a weight of . Thomas Holtz estimated its length at in 2012.

== Discovery and history == left|thumb|Thoracic vertebrae|Dorsal vertebra in anterior (right) and lateral (left) views Fossils of Chubutisaurus were first discovered in 1961 by Mr. Martinez, a local farmer near El Escorial village in Chubut Province, Patagonia in central Argentina. In 1965, these fossils were collected by paleontologist Guillermo del Corro through the use of dynamite and then cataloged at the Museo Argentino de Ciencias Naturales under MACN 18222. The strata these fossils derive from corresponds to the Bayo Overo Member of the Cerro Barcino Formation, which dates to the Cenomanian age (100-98 mya) of the early Late Cretaceous period. In 1975, del Corro scientifically described the remains and assigned them to a new genus and species of sauropod, which he named Chubutisaurus insignis. The generic name Chubutisaurus derives from Chubut, the province the fossils were found in, and the Latin root "sauros" meaning "lizard", a common suffix for dinosaur names. The specific name insignis comes from the Latin "insignis" meaning "remarkable".