What does a gallimimus dinosaurs habitat look like?

Gallimimus lived on a coastal floodplain in North America toward the end of the Cretaceous. The floodplain was crisscrossed by rivers and dotted with swamps. There was a distinct dry and wet season. Vegetation included conifers such as sequoia, cycads, ginkgoes, horsetails, and early flowering plants like palms and some primitive grasses.