Primeval Whirl is a steel-spinning roller coaster at Disney's Animal Kingdom at the Walt Disney World Resort in Orlando, Florida. The ride is an "off the shelf" spinning roller coaster purchased from Reverchon Industries. The ride is part of Chester and Hester's Dino-Rama, which is itself part of Dinoland USA. It is a roller coaster in the "Mild But Wild Thrills" category of Disney Parks. It has cars that spin in circles while travelling the tracks, permitting the ride experience to vary greatly each time it is ridden. It usually seats up to 4 riders.
The ride is lightly themed, with decorations related to time travel and to the meteor which is believed to have caused the extinction of dinosaurs (Cretaceous-Teritary extinction event). This gives the coaster a storyline very similar to that of the nearby dark ride, DINOSAUR.
Similar to Space Mountain at Magic Kingdom, Primeval Whirl has actually two roller coasters with identical layouts, but facing opposite directions.
On Thursday, November 29, 2007, Karen Price, a Disney Cast Member, died in a Florida hospital, five days after falling from the Primeval Whirl ride platform and hitting her head. On March 5, 2008, Disney announced it was adding sensors that would detect if a cast member entered into areas that are off limits and stop the movement of the ride vehicles in the immediate area.
On Monday, March 14, 2011, 52-year-old Russell Sherry Roscoe, a Disney Cast Member, died at Orlando Regional Medical Center after suffering a head trauma while working on The Little Dip section of the ride the previous day.