List of fossiliferous stratigraphic units in Massachusetts
# List of fossiliferous stratigraphic units in Massachusetts

This article contains a list of fossil-bearing stratigraphic units in the state of Massachusetts, U.S.

## Sites

| Group or Formation | Period |
| - | - |
| Agawam Group/Portland Formation | Jurassic |
| Agawam Group/Turners Falls Formation | Jurassic |
| Chamberlain's Brook Formation | Cambrian |
| Meriden Group/East Berlin | Jurassic |
| Mount Toby Formation | Jurassic |
| Portland Formation | Jurassic |
| Weymouth Formation | Cambrian |
