"Away from the flood-zones and out of the forest exist the open prairie environments of the floodplain. These areas are not as frequently subject to waterlogging and are instead formed from disturbances of other types, most commonly forest fires or overgrazing from megaherbivorous dinosaurs. The palmetto-like Sabalites is frequently the tallest tree here, arising among a ground cover of primarily forked ferns (Gleicheniaceae). This provides an abundance of fodder for Triceratops and ankylosaurs that roam these areas."
― Saurian encylopedia
The Fern Prairie is the most open terrestrial space of the game, as the rest of the map is mostly composed either by dense forest or water. This biome is home for the largest land animals in the game, like Triceratops, Anatosaurusand Tyrannosaurus, a biome where they can be found often. Ornithomimids, Denversaurus and Pachycephalosaurusare also not rare here. Acheroraptorare, however, much less common, as they prefer more bushy areas. This area is also plentiful in lizard population, as this is both a common place to find Chamops as well as to find the deadly Palaeosaniwa. Didelphodoncan also be found here often.