Overview
- The species, dated to about 83 million years ago, is published in Historical Biology and adds to Late Cretaceous records from Patagonia.
- The holotype preserves six cervical vertebrae, ten dorsals with associated ribs, the sacrum, and the first caudal vertebra.
- Researchers diagnose the taxon based on unique features in the dorsal vertebrae, sacrum, and first caudal element.
- The name Yeneen honors Aónikenk language roots linked to La Invernada, while houssayi recognizes Nobel laureate and former CONICET leader Bernardo Houssay.
- Fieldwork traces back to a 2003 report, with excavations in 2013–2014, and additional finds include a juvenile and a third, anatomically distinct specimen now under study.