| Location | County | State/Province | Directions,Notes | Age | Formation | Fossils | Comments | Reference | Lat-Long |
|---|---|---|---|---|---|---|---|---|---|
| Washington | – | DC | Dinosaur vertebrae in the Washington,DC area | Cretaceous | Potomac | ? | DC0001 | ||
| Washington | – | DC | In area excavations and cuts | Cretaceous | Arundel | Creosaurus vertebrae | DC0002 | ||
| Washington | – | DC | In excavation at 1st and Channing Street NW in 1942 | Cretaceous | Potomac | dinosaur bones | DC0003 | http://www.jhu.edu/~jhumag/696web/dinosaur.html | |
| Washington | – | DC | In excavation at 1st and F street in 1898 | Cretaceous | Potomac | dinosaur bones | DC0004 | http://www.jhu.edu/~jhumag/696web/dinosaur.html | |
| Washington | – | DC | along Good Hope Hill | Cretaceous-Tertiary | Sharks teeth in greensand | DC0005 |