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.
Cesar-Ranchería Basin
The basin is of importance for hosting the worldwide tenth biggest and largest coal mine of Latin America, Cerrejón. The coals are mined from the Paleocene Cerrejón Formation, that also has provided several important paleontological finds, among others "Titanoboa cerrejonensis", with an estimated length of and a weight of , the biggest snake discovered to date, the giant crocodylians "Cerrejonisuchus improcerus", "Anthracosuchus balrogus" and "Acherontisuchus guajiraensis", and the large turtles "Carbonemys cofrinii", "Puentemys mushaisaensis" and "Cerrejonemys wayuunaiki". Various genera of flora, as "Aerofructus dillhoffi", "Menispermites cerrejonensis", "M. guajiraensis", "Montrichardia aquatica", "Petrocardium cerrejonense and P. wayuuorum", "Stephania palaeosudamericana" and "Ulmoidicarpum tupperi" among others, have been found in the Cerrejón Formation, the sediments of which are interpreted as representing the first Neotropic forest in the world. Mean annual temperature has been estimated to have been between and yearly precipitation ranging from per year.