🇦🇷 Argentina

Genera found in this country (33)

33 genres

Neuquensaurus

86 Ma

Dinosaurs Valid 7 occ.

Brontopodus

201 Ma

Dinosaurs Ichnogenus 4 occ.

Fusioolithus

84 Ma

Dinosaurs Formal taxon 4 occ.

Ophthalmosaurus

201 Ma

Marine reptiles Valid 4 occ.

Grallator

251 Ma

Dinosaurs Ichnogenus 3 occ.

Prognathodon

101 Ma

Marine reptiles Valid 3 occ.

Titanosaurs Nested Far South of Equator, Fossil Eggshells Reveal

Argentina Dinosauria Ecuador fossil nest +1

Paleontologists working in Patagonia, Argentina, have uncovered fossilized eggshells that push the known range of dinosaur nesting deeper into the southern hemisphere than previously documented. The post Titanosaurs Nested Far South of Equator, Fossil Eggshells Reveal appeared first on Sci.News: Breaking Science News.

23/09/2026 sci-news

Fossil Evidence Pushes Back Origin of Live Birth by 90 Million Years

Argentina fossil mammals reproduction

Paleontologists studying a 236-million-year-old cynodont fossil from Argentina say they have found the earliest evidence yet of viviparity (live birth) in the evolutionary line that leads to mammals, pushing back the origin of this reproductive strategy by as much as 90 to 95 million years. The post Fossil Evidence Pushes Back Origin of Live Birth by 90 Million Years appeared first on Sci.News: Breaking Science News.

13/08/2026 sci-news

Fossil Discovery in Patagonia Reveals New Species of Horned Turtle

Argentina Dinosauria discovery extinction fossil +3

Paleontologists have identified a new species of meiolaniform turtle from northern Patagonia, Argentina, that lived during the Maastrichtian age, just before the asteroid-triggered mass extinction that wiped out all non-avian dinosaurs. The post Fossil Discovery in Patagonia Reveals New Species of Horned Turtle appeared first on Sci.News: Breaking Science News.

09/06/2026 sci-news

A New Unenlagiid Dinosaur from Patagonia (Argentina)

Argentina Cretaceous Dinosauria discovery formation +6

A team of scientists from Argentina and Japan has described a new species of unenlagiid dinosaur from southern Patagonia. Named Kank australis, this small, theropod dinosaur lived around 70 million years ago during the Late Cretaceous. The fossil remains were discovered in the Chorrillo Formation of Santa Cruz Province, Argentina. The discovery helps palaeontologists better

02/06/2026 everythingdinosaur

New Dinosaur Species from Argentina May Have Specialized in Catching Fish

Argentina Cretaceous Dinosauria Kank Late Cretaceous +1

Paleontologists in Argentina have identified a previously unknown species of unenlagiid dinosaur that stalked freshwater wetlands during the Late Cretaceous epoch, adding to evidence that some dinosaurs specialized in catching fish. The post New Dinosaur Species from Argentina May Have Specialized in Catching Fish appeared first on Sci.News: Breaking Science News.

29/05/2026 sci-news

This strange giant dinosaur may change what we know about Jurassic titans

Argentina Bicharracosaurus Brachiosauria Brachiosauridae Dinosauria +4

A bizarre new giant dinosaur discovered in Argentina is giving paleontologists a fresh look at how Jurassic titans evolved in the Southern Hemisphere. Bicharracosaurus dionidei stretched about 20 meters long and carried a strange mix of features seen in both Diplodocus and Brachiosaurus relatives. Scientists believe it could represent the first known Jurassic brachiosaurid from South America, helping fill a major gap in the dinosaur fossil record.

12/05/2026 sciencedaily

New Species of Giant Long-Necked Dinosaur Identified in Argentina

Argentina Dinosauria fossil Macronaria new species

Fossils unearthed on a remote Argentine ranch belong to a new genus and species of macronarian sauropod dinosaur, according to an international team of paleontologists led by the Ludwig-Maximilians-Universität München. The post New Species of Giant Long-Necked Dinosaur Identified in Argentina appeared first on Sci.News: Breaking Science News.

11/05/2026 sci-news

This 100 million-year-old snake had hind legs and a lost bone that changes evolution

Argentina bone evolution fossil limb +1

Nearly 100 million years ago, snakes weren’t the sleek, limbless creatures we know today—they still had hind legs and even a cheekbone that has almost vanished in modern species. A remarkably preserved fossil of Najash rionegrina from Argentina has reshaped how scientists think about snake origins, suggesting early snakes were large, wide-mouthed predators rather than tiny burrowers.

24/04/2026 sciencedaily

Ancient DNA reveals a farming shift that pushed a society to the brink

Argentina DNA study

A new study reveals that farming in Argentina’s Uspallata Valley was adopted by local hunter-gatherers rather than introduced by outside populations. Centuries later, a stressed group of maize-heavy farmers migrated into the region, facing climate instability, disease, and declining numbers. Despite these pressures, there’s no sign of violence—instead, families stayed connected across generations, using kinship networks to survive. The research shows how cooperation, not conflict, helped communi

22/03/2026 sciencedaily-paleo

Alcobaça Argentina Chile

Argentina Australia Brazil

Saltasauroidea

Anacleto Argentina Cretaceous

Argentina claw Cretaceous

Argentina Danian formation

Argentina Danian formation

Abelisauria Abelisauridae Argentina

Agustinia Agustiniidae Argentina

Agustinia Agustiniidae Argentina

Rinconsauria

Alamosaurus Argentina armor

Piatnitzkysauridae

Argentina Piatnitzkysauridae

Sarmientichnus

Argentina Sarmientichnus

Notocolossus

Argentina Dinosauria holotype

Allen Argentina Austroraptor

Abelisauria Abelisauridae Aeolosaurini

Manidens

Argentina formation Jurassic

Argentina Cenomanian Cretaceous

Pterodaustro

Argentina fossil Pterodaustro

Skorpiovenator

Argentina Dinosauria fossil

Allen Anacleto Argentina

Argentina Candeleros Cretaceous

Anacleto Argentina Cretaceous

Massospondylidae

Adeopapposaurus Argentina Early Jurassic

Bravasaurus

Argentina Bravasaurus Cretaceous

Formations géologiques (4)

Allen 156 Candeleros 62 Anacleto 56 Bajo de la Carpa 44

Plage temporelle

Groupe géologique · Membre

Neuquén 287

Malargüe 185

Chubut 63

Sierra de Olte 31

Salta 30

Bajada del Agrio 26

Agua de la Peña 21

Mendoza 14

Marayes 5

El Tranquilo 4

Cuyo 3

Uspallata 2

Lower 83

Middle 81

Upper 58

B 16

C 13

Puesto Antigual 12

Cullín Grande 10

Cerro Castaño 8

Cancha de Bochas 6

Pilmatué 5

Los Catutos 4

A 4

Environnements de dépôt

Principaux collecteurs

Activité de collecte par décennie