There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 55255 | J. Head | Pope's Creek, Nanjemoy Fm. Ypresian - Cenozoic 2 - Maryland | Blake (1941) |
| 91550 | J. Sessa | M 107 Ypresian - Cenozoic 2 - Maryland | Palmer and Brann (1965) |
| 99267 | J. Sessa | M 485 Ypresian - Cenozoic 2 - Maryland | Palmer and Brann (1965) |