I have created my idea combining dinosaurs with Planet zoo's peice-by-peice building style. The game also has a Basic, Challenge, and Sandbox mode. I hope you like my idea. The link is below.
https://docs.google.com/document/d/1bQRN7kaiqlcVFEStZ4nIVA75l6Mh6ZmD8wCCcu7CK0I.