Dinosaur: "Allosaurus" medius
Cretaceous: 121.4–100.5 Ma

| Length*: | 9.2 m | 30.2 ft |
| Weight*: | 2.5 t | 5,512 lb |
*The largest known specimen
Sources
Material: Tooth, referred other material ? (teeth ? other fragments ?).
References: Marsh, (1888). Notice of a new genus of Sauropoda and other new dinosaurs from the Potomac Formation.

