Stan (dinosaur)

Stan is the nickname given to a fossil of the dinosaur species "Tyrannosaurus rex". It was found in Hell Creek Formation, South Dakota, close to Buffalo in 1987 by Stan Sacrison, who also discovered the "Tyrannosaurus" specimen nicknamed "Duffy". The original specimen is housed at the Black Hills Institute of Geological Research. 
It is a well known specimen, and one of the most complete, with 199 bones recovered. About 30 casts of the original fossil has been sold worldwide, each for a price of about $100 000. Stan measures 10.9 metres long.