The best thing about Claire’s Sanctuary is introducing the paleobotany system, which allows your herbivores to live longer and have higher ratings with authentic diets. Most of them are very balanced. The flaw, however, concerns the ornithopods. They are divided into the hadrosaurs and then the iguanodonts (everyone else). They have 3 negative plants like everyone else, but the positive plants are the problem. Instead of 3 like everyone else, the hadrosaurs have 4 positive plants while the iguanodonts only have 2, not to mention that the Muttaburrasaurus is classified as a hadrosaur despite being more primitive than the Ouranosaurus, the Iguanodon, and even the Dryosaurus. I propose you either fuse them into the ornithopod category with 3 positive and negative plants or keep the old categories but still give them 3 positive and negative plants as well as making Muttaburrasaurus an iguanodont. As for Claire’s Sanctuary, make 6 plants, not 5, available during the paleobotany mission and then unlock 2 more when completing it and then unlock another 2 when completing the next mission.