{"id":668110,"date":"2026-05-14T03:49:16","date_gmt":"2026-05-14T03:49:16","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/668110\/"},"modified":"2026-05-14T03:49:16","modified_gmt":"2026-05-14T03:49:16","slug":"a-shepherd-in-patagonia-discovered-65-foot-dinosaur-fossils-beneath-his-farm-that-dont-belong-to-any-recognized-group","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/668110\/","title":{"rendered":"A Shepherd in Patagonia Discovered 65-Foot Dinosaur Fossils Beneath His Farm That Don\u2019t Belong to Any Recognized Group"},"content":{"rendered":"

A newly discovered dinosaur from Argentina is giving scientists a fresh look at how giant sauropods evolved in the Southern Hemisphere. Named Bicharracosaurus dionidei, the massive plant-eater showed a strange mix of features linked to both brachiosaurids and diplodocids, something researchers did not expect to find in a single dinosaur.<\/p>\n

The fossil was uncovered in Patagonia\u2019s Ca\u00f1ad\u00f3n Calc\u00e1reo Formation and dates back around 155 million years. The research, published in PeerJ, suggests the animal could be the first Jurassic brachiosaurid ever identified in South America.<\/p>\n

Sauropods remain some of the most recognizable dinosaurs ever discovered. With their huge bodies, tiny heads, long necks, and sweeping tails, they dominated Jurassic landscapes for millions of years. Famous giants like Diplodocus and Brachiosaurus helped shape what people imagine when they think about dinosaurs today.<\/p>\n

Most fossil discoveries linked to these animals have come from North America and parts of Africa. That is why the discovery of Bicharracosaurus dionidei matters so much. Scientists from LMU Munich and the Bavarian State Collections of Natural History say fossils from Patagonia are helping fill major gaps in the fossil record from the ancient southern supercontinent known as Gondwana.<\/p>\n

A Dinosaur With Traits From Different Giant Groups<\/p>\n

Researchers recovered more than 30 vertebrae from the neck, back, and tail, along with ribs and part of the pelvis. As the study explained, the bones <\/a>belonged to an adult dinosaur estimated to have reached about 65 feet, or 20 meters, in length.<\/p>\n

Some parts of the skeleton looked surprisingly similar to Giraffatitan, the giant brachiosaurid discovered in Tanzania. Other features, especially in the back vertebrae, were closer to Diplodocus and related dinosaurs from North America. Lead author Alexandra Reutter<\/a> explained that: <\/p>\n

\u201cOur phylogenetic analyses of the skeleton indicate that\u00a0Bicharracosaurus dionidei\u00a0was related to the Brachiosauridae, which would make it the first Brachiosauridae from the Jurassic of South America.\u201d <\/p>\n

\"FossilsFossils of Bicharracosaurus dionidei during excavation in Patagonia, Argentina. Credit: PeerJ<\/p>\n

That unusual combination of traits is one reason paleontologists find the fossil so interesting. Sauropod classification often depends on details hidden in vertebrae, and this dinosaur does not fit neatly into categories scientists are used to seeing.<\/p>\n

Patagonia Is Revealing More Jurassic Secrets<\/p>\n

The fossils were discovered in Argentina\u2019s Chubut Province, a region already known for major dinosaur finds. Scientists describe the Ca\u00f1ad\u00f3n Calc\u00e1reo Formation as an increasingly important source of information about Jurassic ecosystems in Gondwana.<\/p>\n

Dinosaur expert Oliver Rauhut <\/a>said most knowledge about Late Jurassic sauropods still comes from fossils found in the Northern Hemisphere. For years, Tanzania remained one of the only major Southern Hemisphere sites from that time period.<\/p>\n

\u201cThe fossil site in the Argentine province of Chubut, from which Bicharracosaurus dionidei originates, provides us with important comparative material, allowing us to continuously supplement and reevaluate our understanding of the evolutionary history of these animals, particularly in the Southern Hemisphere,\u201d he said in an university statement<\/a>.<\/p>\n

\"IllustratedIllustrated reconstruction of the massive dinosaur Bicharracosaurus dionidei. Creditl: Felipe Cutro-Lev<\/p>\n

The new discovery<\/a> does not overturn previous research, though it adds an important missing piece to the broader picture of Jurassic dinosaur evolution.<\/p>\n

The Fossil Find That Began With A Shepherd<\/p>\n

The species name dionidei honors Dionide Mesa, the shepherd who first spotted the fossils on a farm in Patagonia. Researchers chose the genus name Bicharracosaurus from the Spanish slang word \u201cbicharraco,\u201d which roughly translates to \u201cbig animal.\u201d<\/p>\n

Today, the fossils are housed at the Museo Paleontol\u00f3gico Egidio Feruglio <\/a>in Trelew, Argentina. The study itself involved researchers Jos\u00e9 Luis Carballido, Guillermo Jos\u00e9 Windholz,Diego Pol, and Oliver W.M. Rauhut alongside Reutter.<\/p>\n

\"TheThe vertebrae of Bicharracosaurus dionidei during laboratory preparation in Trelew, Argentina. Credit: Amalia Villafa\u00f1e<\/p>\n

Even though the skeleton remains incomplete<\/a>, the fossil already ranks among the more important Jurassic sauropod discoveries from South America in recent years. Its strange anatomy is giving paleontologists new clues about how some of Earth\u2019s largest land animals evolvednearly 155 million years ago.<\/p>\n","protected":false},"excerpt":{"rendered":"A newly discovered dinosaur from Argentina is giving scientists a fresh look at how giant sauropods evolved in…\n","protected":false},"author":2,"featured_media":668111,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[49,48,66],"class_list":["post-668110","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-ca","tag-canada","tag-science"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/668110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/comments?post=668110"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/668110\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media\/668111"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media?parent=668110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/categories?post=668110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/tags?post=668110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}