Basic guide on how many of each species you can have in one area.

Herbivores
Ankylosaurus- 0-8 ideal, 0-4 social
Polacanthus- 0-6 ideal, 0-3 social
Sauropelta- 0-4 ideal, 0-2 social
Nodosaurus- 0-7 ideal, 0-4 social
Crichtonsaurus- 0-8 ideal, 0-5 social

Pentaceratops- 3-9 ideal, 3-5 social
Chasmosaurus- 3-11 ideal, 3-5 social
Pachycephalosaurus- 3-10 ideal, 3-6 social
Dracorex- 2-12 ideal, 2-8 social

Chungkingosaurus- 2-18 ideal, 2-12 social
Gigantspinosaurus- 4-16 ideal, 4-10 social
Stegosaurus- 5-15 ideal, 5-9 social
Torosaurus- 2-13 ideal, 2-5 social
Triceratops- 1-16 ideal, 1-6 social

Huayangosaurus- 1-20 ideal, 1-13 social
Maiasaura- 4-23 ideal, 4-12 social
Muttaburrasaurus- 6-20 ideal, 6-12 social
Gallimimus- 0-23 ideal, 0-18 social
Struthiomimus- 0-25 ideal, 0-20 social
Tsintaosaurus- 4-22 ideal, 4-15 social
Parasaurolophus- 4-21 ideal, 4-14 social
Corythosaurus- 2-24 ideal, 2-13 social
Edmontosaurus- 1-25 ideal, 1-15 social
Apatosaurus- 0-22 ideal, 3-7 social
Brachiosaurus- 0-25 ideal, 1-5 social
Diplodocus- 0-24 ideal, 1-8 social
Camarasaurus- 0-23 ideal, 2-7 social

Kentrosaurus
Styracosaurus (exclusive)
Mamenchisaurus
Metriacanthosaurus
Archaeornithomimus

Carnivores
Suchomimus (exclusive)
Carnotaurus-
Giganotosaurus
Majungasaurus (exclusive)

Tyrannosaurus- 0-15 ideal, 0-1 social
Velociraptor- 0-20 ideal, 2-6 social
Spinosaurus- 0-13 ideal, 0-2 social
Indominus rex- 1-10 ideal, 0-1 social
Deinonychus- 0-18 ideal, 3-8 social
Dilophosaurus- 0-22 ideal, 1-12 social
Ceratosaurus- 0-20 ideal, 0-3 social