Huincul Formation

Argentinosaurus (meaning "lizard from Argentina") is a genus of giant sauropod dinosaur that lived during the Late Cretaceous period in what is now Argentina. Although it is only known from fragmentary remains, Argentinosaurus is one of the largest known land animals of all time, perhaps the largest, measuring long and weighing . It was a member of Titanosauria, the dominant group of sauropods during the Cretaceous.

Mapusaurus ( 'earth lizard') is a genus of giant carcharodontosaurid carnosaurian dinosaur that lived in Argentina during the Cenomanian–Turonian ages of the Late Cretaceous. It is known from a bonebed of between seven and nine specimens, excavated from the strata of the Huincul Formation between 1997 and 2001 as part of the Argentinian-Canadian Dinosaur Project. In 2006, Rodolfo Coria and Philip J. Currie scientifically described Mapusaurus. Only one species of Mapusaurus, M. roseae, has been described, named after the rose-colored rocks in which it was discovered and sponsor Rose Letwin.

Skorpiovenator ("scorpion hunter") is a genus of abelisaurid theropod dinosaur from the Late Cretaceous (Cenomanian to Turonian) Huincul Formation of Argentina. The sole species of Skorpiovenator, S. bustingorryi, was named in honour of Manuel Bustingorry, the late owner of the farm on which the type specimen was discovered. Formally described in 2009, the type specimen is one of the most complete and informative abelisaurids yet known, described from a nearly complete and articulated skeleton. A tibia fragment was assigned to Skorpiovenator in 2022.

Ilokelesia is an extinct genus of abelisaurid theropod dinosaurs, preserved in the layers of the earliest Late Cretaceous of the Huincul Formation (Neuquén Group) in Neuquén Province, Argentina. The only known specimen, consisting of fragmentary elements of the skull and skeleton, was described by Rodolfo Coria and Leonardo Salgado in late 1998.

Limaysaurus ("Limay lizard") is a genus of rebbachisaurid sauropod dinosaurs which lived during the late Cretaceous period, about 99.7 to 94 million years ago, in the Cenomanian, in what is now South America (northwestern Patagonia). It is represented by a single species, L. tessonei.

Taurovenator, from Latin taurus, meaning "bull", and venator, meaning "hunter", is an extinct genus of large, probable carcharodontosaurid theropod dinosaurs that lived in what is now Argentina during the Cenomanian age of the Late Cretaceous, around 95 to 93.9 million years ago. Initially only known from a single postorbital skull bone described from the Huincul Formation, Taurovenator violantei was named in 2016 by Argentine paleontologist Matias Motta and colleagues. Debate came about over the validity of the species, with some paleontologists arguing that Taurovenator was synonymous with t

Gualicho (named in reference to the gualichu) is an enigmatic genus of theropod dinosaurs. The type species is Gualicho shinyae. It lived in what is now northern Patagonia, on what was then a South American island continent split off from the supercontinent Gondwana. The fossils were found in the Huincul Formation, dating to the late Cenomanian-early Turonian age of the upper Cretaceous Period, around 91 million years ago.

Cathartesaura is a genus of rebbachisaurid sauropod dinosaur from Late Cretaceous strata of the Huincul Formation, at the "La Buitrera" locality, in the Neuquén Basin of Río Negro Province, Argentina. The fossil remains, described by Gallina and Apesteguía in 2005, consist of a partial skeleton including vertebrae and limb bones. These were found at the base of the formation, which dates back to the Cenomanian and Turonian epochs, in mudstone and sandstone levels.

Aoniraptor is an extinct genus of megaraptoran theropod dinosaurs from the Late Cretaceous Huincul Formation of Argentina. The genus contains a single species, Aoniraptor libertatem, known from a partial skeleton.

Meraxes is a genus of large carcharodontosaurid theropod dinosaur from the Late Cretaceous Huincul Formation of Patagonia, Argentina. The genus contains a single species, Meraxes gigas.

Chucarosaurus (meaning "indomitable reptile") is an extinct genus of titanosaurian dinosaur from the Late Cretaceous (middle Cenomanian–lower Turonian) Huincul Formation of Argentina. The genus contains a single species, C. diripienda, known from various limb and pelvic bones.

Overoraptor (, meaning "piebald thief") is an extinct genus of paravian theropod of uncertain affinities from the Late Cretaceous Huincul Formation of Argentinian Patagonia. The genus contains a single species, O. chimentoi, known from several bones of the hands, feet, and hips alongside some vertebrae.

Choconsaurus ("El Chocón lizard") is an extinct genus of herbivorous sauropod dinosaur belonging to the group Titanosauriformes, which lived in the area of present-day Argentina at the end of the Cretaceous.

Huinculsaurus is an extinct genus of noasaurid dinosaurs known from the Late Cretaceous Huincul Formation of Argentina. The genus contains a single species, Huinculsaurus montesi, known from five partial vertebrae.

Bustingorrytitan (meaning "Bustingorry's giant") is a genus of lithostrotian titanosaur from the Late Cretaceous (Cenomanian) Huincul Formation of Argentina. The type species is Bustingorrytitan shiva.

Chakisaurus (meaning "elder guanaco lizard") is an extinct genus of elasmarian ornithopod dinosaur from the Late Cretaceous Huincul Formation of Argentina. The genus contains a single species, C. nekul, known from multiple partial skeletons belonging to individuals of different ages. Chakisaurus represents the first ornithischian species to be named from the Huincul Formation.

Sidersaura (meaning "star lizard") is an extinct monotypic genus of rebbachisaurid sauropod dinosaur from the Late Cretaceous Huincul Formation of Argentina. The genus contains a single species, S. marae, known from the remains of four individuals. Sidersaura represents one of the largest known rebbachisaurids.

Tralkasaurus (meaning "thunder lizard") is a genus of abelisaurid dinosaur from the Huincul Formation from Río Negro Province in Argentina. The type and only species is Tralkasaurus cuyi, named in 2020 by Mauricio Cerroni and colleagues based on an incomplete skeleton. A medium-sized abelisaurid, Tralkasaurus exhibits a conflicting blend of characteristics found among the early-diverging abelisauroids with others that characterize the highly specialized clade Brachyrostra, and thus its position within the clade is poorly-resolved.

Astigmasaura is an extinct genus of rebbachisaurid sauropod dinosaurs from the Late Cretaceous Huincul Formation of Argentina. The genus contains a single species, Astigmasaura genuflexa, known from an incomplete articulated skeleton.

geological formation in Argentina