501 Pages


The Morrison Formation is a dig site in Jurassic World Evolution.

InGen Database Description

The Morrison Formation was named after Morrison, Colorado where the first fossils were recovered by Arthur Lakes in 1877. The region was one of the key locations for the Bone Wars during the late 19th century. It is a vast area of different layers covering 1.5 million square km and covering Montana, North Dakota, South Dakota, Nebraska and Kansas. Elements spread further into other states. It dates to the Late Jurassic epoch, 156 million years ago.

The deposits of sandstone, mudstone, siltstone, and limestone formed from rivers and floodplains. There is evidence that large areas were once a dry climate, similar to a savanna, but with ancient plants rather than the more familiar grasses.

This is one of the most productive fossil sites in North America. Significant plant fossils have been found, along with insects, fish, crocodiles, lizards and clams.


  • The Morrison Formation previously appeared in Jurassic Park: Operation Genesis, considered by many to be Jurassic World Evolution's spiritual predecessor.

Further reading

Community content is available under CC-BY-SA unless otherwise noted.