Diplodocus now common scientific opinion that "Seismosaurus hallorum" is a species of "Diplodocus". This genus of dinosaurs lived in what is now mid-western North America at the end of the Jurassic period. "Diplodocus" is one of the more common dinosaur fossils found in the middle to upper Morrison Formation, between about 154 and 152 million years ago, during the late Kimmeridgian age. The Morrison Formation records an environment and time dominated by gigantic sauropod dinosaurs, such as "Apatosaurus", "Barosaurus", "Brachiosaurus", "Brontosaurus", and "Camarasaurus". "Diplodocus" is among the most easily identifiable dinosaurs, with its typical sauropod shape, long neck and tail, and
Jurassic Park: The Ride adult Stegosaurus and its young. Two Compsognathus were seen fighting over an empty popcorn box before the boat entered Hadrosaur Cove, where a Parasaurolophus poped up in front of the raft, and sprayed water at the riders. The Jurassic Park Animal Control called, revealing that the Parasaurolophus threw the raft off course, causing it to enter the raptor containment area, which was shown to be heavily damaged. Riders then encountered what appeared to be an abandoned tour raft, where a Dilophosaurus was seen eating the remains of a poncho. A nearby motorboat was also abandoned, sent by Jurassic Park Animal