Trivia: What type of fossils do NOT exist in the Grand Canyon?
Trilobite
Dinosaur
Coral
Sea lily
The correct answer is Dinosaur
So why is this answer correct? : Fossils in the Grand Canyon date back to the Precambrian Time, about 1.2 billion years ago. The newest fossils are from the Paleozoic Era, which was about 525 to 270 million years ago. Because of that, the rocks comprising the canyon are too old to have any evidence of dinosaurs.