Taxa began to have localized ranges, with different faunas at different parts of the globe. These large mammal faunas are richest in African savannas and grasslands. There were three general dinosaur faunas in the Late Cretaceous. Lithologies, invertebrate faunas, and plant and pollen data support the above interpretation. For the first time foraminifera take a prominent part in the marine faunas. There are strong affinities and relationships between Mediterranean and Atlantic faunas. During the Eocene, plants and marine faunas became quite modern. The diversity of this assemblage is similar to that of modern crustacean faunas. The Edmontonian and Lancian time intervals had distinct dinosaur faunas. Pteranodontians were among the last of the world's pterosaur faunas. The Dinosaur Park Formation can be divided into at least two distinct faunas. They were also most diverse in Asia where they occur in all major Paleocene faunas. They were also most diverse in Asia, where they occur in all major Paleocene faunas. This makes it difficult to argue that these sections of the formation preserve distinct faunas. This is an example of how isolated faunas develop differently.