TL;DR: The information of the presacral vertebral column of Saltasaurus loricatus is expanded, including a detailed description of neural laminae, fossae and pneumatic foramina of the neural arch, and a comparative analysis with closely related taxa is established.
TL;DR: The pneumatic foramina in both the neural arches and the centra are described in detail, and the relative proportion of air spaces in the caudal vertebrae is established, revealing that the skeleton of Rocasaurus muniozi was more pneumatized than that of Neuquensaurus australis, with Saltasaurus loricatus intermediate.
TL;DR: In this paper, the authors described a new sauropod assemblage coming from the Salitral Ojo de Agua Area, Rio Negro province, northern Patagonia, Argentina (Allen Formation; Maastrichtian).