Candeleros Formation

Giganotosaurus ( ) is a genus of large theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 95 million years ago. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993 and is almost 70% complete. The animal was named Giganotosaurus carolinii in 1995; the genus name translates to "giant southern lizard", and the specific name honors the discoverer, Ruben Carolini. A dentary bone, a tooth, and some tracks, discovered before the holotype, were later assigned to this animal. The g

Buitreraptor (meaning "La Buitrera seizer") is a genus of unenlagiine theropod dinosaurs that lived during the Late Cretaceous of Argentina at the Candeleros Formation. Buitreraptor was described in 2005 and the type species is Buitreraptor gonzalezorum. It was rooster-sized and had a very elongated head with many small teeth.

Andesaurus ( ; "Andes lizard") is a genus of basal titanosaurian sauropod dinosaur which existed during the middle of the Cretaceous Period in South America. Like most sauropods, it would have had a small head on the end of a long neck and an equally long tail.

Najash is an extinct genus of basal snake from the Late Cretaceous Candeleros Formation of Patagonia. Like a number of other Cretaceous and living snakes it retained hindlimbs, but Najash is unusual in having well-developed legs that extend outside the rib cage, and a pelvis connected to the spine.

Ekrixinatosaurus ('explosion-born reptile') is a genus of abelisaurid theropod which lived approximately 99 to 97 million years ago during the Late Cretaceous period. Its fossils have been found in Argentina. Only one species is currently recognized, Ekrixinatosaurus novasi, from which the specific name honors Dr. Fernando Novas for his contributions to the study of abelisaurid theropods, while the genus name refers to the dynamiting of the holotype specimen. It was a large abelisaurid, measuring between in length and weighing .

Jakapil (meaning "shield bearer" in Puelchean) is a genus of basal thyreophoran dinosaur from the Late Cretaceous (Cenomanian-aged) Candeleros Formation of Argentina. The type species is Jakapil kaniukura.

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.

Bicentenaria (meaning "two hundred year anniversary"; named after the 200th anniversary of the 1810 May Revolution in Argentina) is an extinct genus of carnivorous coelurosaurian theropods which lived during the early Late Cretaceous (Cenomanian) Candeleros Formation of Argentina. It contains the type species, B. argentina.

Rayososaurus is an extinct genus of sauropod dinosaur in the family Rebbachisauridae. Rayososaurus was named by Argentinian paleontologist José Bonaparte in 1996. Its type and only accepted species is Rayososaurus agrioensis. The species Limaysaurus tessonei was at one point included in Rayososaurus as Rayososaurus tessonei.

Nopcsaspondylus (meaning "Nopcsa's vertebra", in reference to the original describer) is a dubious genus of rebbachisaurid sauropod dinosaur from the Cenomanian-aged (Upper Cretaceous) Candeleros Formation of Neuquén, Argentina. It is based on a now-lost back vertebra described by Nopcsa in 1902 but not named at the time. The specimen had a small vertebral body and large hollows, now known to be typical of rebbachisaurids.

Alnashetri is an extinct genus of alvarezsauroid coelurosaurian theropod dinosaur known from the early Late Cretaceous (Cenomanian stage) of La Buitrera, Río Negro Province, Argentina. It contains one known species, Alnashetri cerropoliciensis. Its remains were discovered in Candeleros Formation.

geological formation

species of mammal (fossil)

Priosphenodon is an extinct, large herbivorous eilenodontine rhynchocephalian known from the mid-Cretaceous (Albian-Turonian) of Argentina. It is one of the largest known sphenodontians.

Campananeyen is a genus of rebbachisaurid sauropod dinosaur from the Late Cretaceous (Cenomanian) Candeleros Formation of Argentina. The genus contains a single species, Campananeyen fragilissimus, known from a fragmentary skeleton.

Pteraichnus is an ichnogenus that has been attributed to pterosaurs. As of 2025, eight valid ichnospecies have been described from various units.