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A brand-new genus and types of titanosaur sauropod dinosaur that lived throughout the Cretaceous duration has actually been determined from the fossilized remains discovered in northern Patagonia, Argentina.
Life restoration of Yeneen houssayiImage credit: Gabriel Lío.
Called Yeneen houssayithe brand-new types strolled our world around 83 million years ago (Late Cretaceous date).
The ancient animal comes from Titanosauria, a group of big, long-necked, plant-eating dinosaurs that were prevalent throughout the supercontinent Gondwana.
Yeneen houssayi had a little head relative to the rest of its body,” stated Dr. Leonardo Filippi, a paleontologist at CONICET and the Museo Municipal Argentino Urquiza.
“It determined in between 10 and 12 m (33-39 feet) in length and weighed roughly 8 to 10 lots.”
The fossil remains of Yeneen houssayi were recuperated from the Bajo de la Carpa Formation at a region referred to as Cerro Overo-La Invernada in the Neuquén province, Patagonia, Argentina.
The product represents among the most total skeletons of a titanosaur from this area, maintaining 6 cervical vertebrae, 10 dorsal vertebrae with associated ribs, the sacrum, and the very first caudal vertebra.
In addition to the holotype person, the paleontologists determined remains of a minimum of 2 other sauropods at the website, consisting of a juvenile specimen and another adult titanosaur that appears to come from a various, yet undescribed types.
“Phylogenetic analysis shows that Yeneen houssayi is carefully associated to Narambuenatitan and Overosaurusas a basal member of an unnominated clade of obtained non-lithostrotian saltasauroids,” they stated.
“The proof supplied by the Cerro Overo-La Invernada sauropod titanosaur animals recommends that, throughout the Santonian, types variety was fairly high which a minimum of 2 family trees existed side-by-side: Collossosauria and Saltasauroidea.”
“This finding makes the Cerro Overo-La Invernada location the one with the best variety of titanosaurs for the Santonian of the Neuquén Basin, that makes it an extraordinary location to comprehend the development of dinosaur animals for this duration.”
The discovery is reported in a paper released on January 12, 2026 in the journal Historic Biology
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L.S. Filippi et al Yeneen houssayi gen. et sp. nov. and an introduction of the sauropod titanosaurian variety from Cerro Overo– La Invernada location (Bajo de la Carpa Formation, Santonian), North Patagonia, Argentina. Historic Biologyreleased online January 12, 2026; doi: 10.1080/ 08912963.2025.2584707
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