Overview
- Published in January 2026 in Historical Biology, the study presents Yeneen houssayi from La Invernada in Neuquén and names it using a Tehuelche term alongside a tribute to Nobel laureate Bernardo Houssay.
- The holotype preserves six cervical vertebrae, all ten dorsal vertebrae with associated ribs, the sacrum, and the first caudal vertebra, which carry the diagnostic features of the new species.
- Researchers estimate a length of 10–12 meters and a mass of 8–10 tons, noting a proportionally small head typical of the animal’s sauropod lineage.
- Beyond the main specimen, the team identified a juvenile individual and a third specimen with distinct anatomy that is being studied as a potential separate titanosaur.
- The site was first reported in 2003 by Gendarmería; improved access enabled excavations in 2013–2014 and the fossils were prepared at the Museo Municipal Argentino Urquiza in Rincón de los Sauces.