Holotype: Mesozoic Europe brings in a fresh continent of Dinosaurs, Marine Reptiles, and Pterosaurs. It also adds ancient Crocs with the new Crurotarsi. Extra objectives and options through Focus Boards, Bone Beds, and Milestones enhance the game experience by unveiling never-seen-before specimens and formations unique to Europe's lands.

This expansion requires Holotype: Mesozoic North America to play.