Sauropods from Upper Jurassic of Portugal: how is the collection of the Sociedade de História Natural revealing new data about the systematics of these giant dinosaurs?

The sauropod fossil record from the Upper Jurassic of Portugal is abundant and recent studies have revealed a diverse fauna composed by at least five species: the turiasaur Zbyatlanticus, the diplodocine Dinheirosaurus lourinhanensis; the camarasaurid Lourinhasaurus alenquerensis; the brachiosaurid Lusotitan atalaiensis; and the possible somphospondylan Oceanotitan dantasi. Some of them have been recovered as closely related forms to the Morrison Formation taxa, such as Camarasaurus and Supersaurus. This high diversity suggested that Iberian Peninsula might have played an important role on the dispersion of some of these lineages. Here in, we will provide an overview on the sauropod collection of the Sociedade de História Natural (SHN, Torres Vedras, Portugal), which represents one of the most relevant collections of Late Jurassic sauropods in the Iberian Peninsula, including the holotype specimen of Oceanotitan dantasi. This collection preserves many isolated specimens and around ten partial skeletons or sets of associated bones, all from the West region of Portugal, in particularly, from the municipalities of Torres Vedras, Lourinhã and Peniche. Field work has been carried by the SHN, and of some of these specimens are being prepared. A preliminary overview of the most relevant specimens of the SHN will be provided, including turiasaurs, diplodocines and macronarians.