This article contains a list of fossil-bearing stratigraphic units in the state of Mississippi, U.S.
Sites
| Group or Formation | Period | Notes |
|---|
| Bashi Formation | Paleogene |
| Byram Formation | Paleogene |
| Byram Marl | Paleogene |
| Chickasawhay Formation | Paleogene |
| Chiwapa Formation | Cretaceous |
| Claiborne Group/Lisbon Formation | Paleogene |
| Claiborne Group/Winona Formation | Paleogene |
| Cockfield Formation | Paleogene |
| Coffee Sand | Cretaceous |
| Cook Mountain Formation | Paleogene |
| Eutaw Formation | Cretaceous |
| Eutaw Group/McShan Group | Cretaceous |
| Forest Hill Formation | Paleogene |
| Glendon Formation | Paleogene |
| Glendon Limestone | Paleogene |
| Jackson Formation | Paleogene |
| Jackson Group/Moodys Branch Formation | Paleogene |
| Jackson Group/Yazoo Clay | Paleogene |
| Kosciusko Formation | Paleogene |
| Marianna Limestone | Paleogene |
| Midway Group/Clayton Formation | Paleogene |
| Mint Springs Marl | Paleogene |
| Moodys Branch Formation | Paleogene |
| Owl Creek Formation | Cretaceous |
| Pensacola Formation | Neogene |
| Prairie Bluff | Cretaceous |
| Prairie Bluff Chalk | Cretaceous |
| Red Bluff Clay | Paleogene |
| Ripley Formation | Cretaceous |
| Selma Group | Cretaceous |
| Tallahatta Formation | Paleogene |
| Tuscahoma Formation | Paleogene |
| Vicksburg Group/Byram Formation | Paleogene |
| Vicksburg Group/Marianna Formation | Paleogene |
| Vicksburg Group/Mint Springs Formation | Paleogene |
| Vicksburg Group/Red Bluff Formation | Paleogene |
| Wautubbee Formation | Paleogene |
| Wilcox Group/Hatchetigbee Bluff Formation | Paleogene |
| Yazoo Clay | Paleogene |
|