 "Allosaurus" accounted for 70 to 75% of theropod specimens and was at the top trophic level of the Morrison food web.Many of the dinosaurs of the Morrison Formation are the same genera as those seen in Portuguese rocks of the Lourinha Formation (mainly "Allosaurus", "Ceratosaurus", "Torvosaurus", and "Stegosaurus"), or have a close counterpart ("Brachiosaurus" and "Lusotitan", "Camptosaurus" and "Draconyx").Other vertebrates that shared this paleoenvironment included ray-finned fishes, frogs, salamanders, turtles like "Dorsetochelys", sphenodonts, lizards, terrestrial and aquatic crocodylomorphans such as "Hoplosuchus", and several species of pterosaur like "Harpactognathus" and "Mesadactylus".