All of those dinosaur animatronics from the Magic Skyway were packed up and shipped back to Disneyland where they were added alongside the Disneyland Railroad as the "Fantastic Primeval World" part of the train trip in 1966. The sight of animatronic dinosaurs was such a big deal at Disneyland in 1966 that hour long lines developed to ride the Disneyland Railroad just so people could see the dinosaurs shipped from the World's Fair.
The dinosaurs are still there at Disneyland today, in the same sets and doing the same stuff they originally did at the World's Fair for each passing train.
The Walt Disney World connection is that they named that spinning roller coaster in DAK's Dinorama "Primeval Whirl". That's a play on words of the Disneyland Railroad feature "Primeval World", which comes just after the trains pass through the Grand Canyon Diorama that was added in the late 1950's.
Bob Gurr, the Imagineer who engineered many of the ride systems currently at Disneyland and WDW, had a great interview a few years ago about his work on the Magic Skyway ride. It was really a nifty thing, and the Ford execs shelled out big bucks to create it just because it put every rider in the passenger seat of a real live Ford Motor Company convertible instead of just a plastic seat like the General Motors ride at the Fair did. But the ride system was very tempermental, and in the first few days of operation there were many crack-ups and fender benders as lighter cars would be propelled faster than heavier cars and they would crash into each other. After a few weeks, and endless body shop repairs done on sight by an army of Ford mechanics, they developed a system of pacing the cars. Bob Gurr had to come up with this whole complicated formula where a Mercury Monterey could never be in front of a Mustang, a Lincoln Continental always had to be behind a Galaxie 500 but never more than two cars away from a Ford Falcon, etc., etc.. It sounded like a real nightmare, but it sure was a clever way of selling the sponsors product while putting on a great show!