Ecosystem

species brachiosaurus apatosaurus mamenchisaurus nigersaurus Stegosaurus Kentrosaurus Regaliceratops Triceratops Nausutocaeratops Edmontosaurus Parasarolophus Ankylosaurs Chasmosaurus Gallimimus Microceratus neoepiblema Minmi Pachysephelosaurus lystrosaurus Gigantosaurus Tyrannosaurus rex Allosaurus Carnotorus Yangchuanosaurus Neovenator Ceratosaurus Concavonator Gigantoraptor Majungosaurus Utahraptor Pyroraptor Velociraptor Herrerasaurus Troodon smilodon Dimetrodon Sinosauropteryx Comsagnauthus repenomamus Ceolphysis Dilophosaurus Spinosaurus Gryosuchus Irritator Baryonyx Deinocheirus Rauisuchus Austroraptor Quetzocoatlus Pteranodon Marradacttylus Thapunngaka Dimorphodon Microraptor Archeopteryx Mosasaurus Megalodon Liopleurodon Elasmosaurus Archelon Plesiosaurus Atopodentatus Nothosaurus Locust Meganeura Arthropleura Pulmonoscorpius Megarachne Trilobites