Most of the Carnegie collection of scale-model dinosaur replicas. Well, "most" might not be accurate since I don't know how many there are, but I have:
Tyrannosaurus, Original model
Tyrannosaurus, New Model (Lost)
Triceratops, Original Model
Apatosaurus Adult
Apatosaurus Juvenile (Lost)
Allosaurus
Stegosaurus (Lost)
Spinosaurus (Damaged)
Quetzalcoatlus
Quetzalcoatlus, Alternate Color
Pteranodon
Dilophosaurus Pair (Both Lost)
Corythosaurus
Parasaurolophus (Lost)
Maisaura Adult
Maisaura Nest (Lost)
Saltasaurus
Baryonyx
Brachiosaurus
Diplodocus
Microraptor
Oviraptor (Lost)
Amargosaurus (Lost)
Deltadromeus
Ankylosaurus
Plateosaurus (Lost)
Iguanodon
I think that's all, but I may have forgotten one or two. Also, the plastic mountain to pose them on.