Sue (dinosaur)
Sue is the nickname given to FMNH PR 2081, which is the largest, most extensive and best preserved "Tyrannosaurus rex" specimen ever found, at over 90% recovered by bulk. It was discovered in August 1990, by Sue Hendrickson, an explorer and fossil collector, and was named after her. After ownership disputes were settled, the fossil was auctioned in October 1997, for US $8.3 million, the highest amount ever paid for a dinosaur fossil, and is now a permanent feature at the Field Museum of Natural History in Chicago, Illinois.
Puertasaurus
"Puertasaurus" was a very large animal. Its size is difficult to estimate due of the scarcity of its remains, but modern estimates place it around long and in mass. The largest of the four preserved bones is the dorsal vertebra, which at wide is the broadest known vertebra of any sauropod. The Cerro Fortaleza Formation is of uncertain age, due to the inconsistency of stratigraphic nomenclature in Patagonia. When "Puertasaurus" was alive, the Cerro Fortaleza Formation would have been a humid, forested landscape. "Puertasaurus" would have shared its habitat with other dinosaurs, including another large sauropod, "Dreadnoughtus", in addition to other reptiles and fish.