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.