About three hundred acres of the Wilson Farm site were purchased from the Wilson family by The Maryland-National Capital Park and Planning Commission in 1995. Eighty acres were preserved for development of the Prince George's Sports & Learning Complex, a facility with a learning center and athletic training and competition venues including a field house, fitness center, gymnastics center, and aquatic center. The remaining land was later sold to Jack Kent Cooke, owner of the Washington Redskins, to build a new stadium for the team to replace Robert F. Kennedy Memorial Stadium. When it opened in September 1997, Jack Kent Cooke Stadium, later renamed FedEx Field, was the largest in the National Football League, with seating for 91,704 on five levels, including two general admission seating levels, a Club Level, and two Suite Levels containing over two hundred luxury boxes. Beyond professional football, the stadium has also hosted college football games, soccer matches, and celebrity concerts. The Wilson Farm is also geologically significant for its abundant and diverse marine fossils from the late Cretaceous Period, sixty-five million years ago, in the Severn Formation through the early Tertiary Period, sixty-five to fifty-four million years ago, in the Aquia Formation. It is the type locality for the Brightseat Formation, where geologists first identified that formation in Maryland. Fossils from the Severn Formation include ammonites, mososaurs, and exogyra, and after a major mass extinction there is an almost total absence of large fossils in the early Tertiary Brightseat Formation. By the late Paleocene Epoch, sixty to sixty-six million years ago, marine fossils again became abundant and diverse, including sea turtles, sharks, crocodiles, and large oysters, while during the Tertiary Period early mammals, flowers, insects, and birds occupied niches left open by the extinct dinosaurs.
