This article contains a list of fossil-bearing stratigraphic units in the state of Mississippi, U.S.
Cynthiacetus is an extinct genus of basilosaurid early whale that lived during the Late Eocene Specimens have been found in the southeastern United States and Peru.
The Claiborne Formation or Claiborne Group is a geologic formation in Arkansas, Illinois, Kentucky, and Texas. It preserves fossils dating back to the Paleogene period.
The Jackson Group is a geologic group in Arkansas and North Carolina. It preserves fossils dating back to the Paleogene to Neogene period. The area is where the type specimen of Basilosaurus and ancient whale confused to be a reptile was found.
The Jackson Formation is a geologic formation in Tennessee. It preserves fossils dating back to the Paleogene period. Exposed only in bluffs along Mississippi River with thickness at least 60 feet. Primary rock type is sand. Secondary rock type is clay or mud. Other rock types include slit and lignite. "Light gray to buff, medium- to very fine-grained silty sand, interbedded with light gray clayey silt." From the Tertiary geological age.
The Midway Group is a geologic group in Tennessee, Arkansas, Mississippi, Louisiana, Texas and Alabama. It preserves fossils dating back to the Paleogene period.
The Gosport Sand is a geologic formation in Georgia, Alabama, and Mississippi. It preserves fossils dating back to the Paleogene period.
The Salt Mountain Limestone is a geologic formation in southern Alabama and Mississippi.
The Prairie Bluff Chalk is a geologic formation in Alabama and Mississippi. It preserves fossils dating back to the Cretaceous period.
The Tuscahoma Formation is a geologic formation in Mississippi. It preserves fossils dating back to the Paleogene period.
The Chickasawhay Formation is a geologic formation in Mississippi. It preserves fossils dating back to the Paleogene period.
The Byram Marl is a geologic formation in Mississippi. It preserves fossils dating back to the Paleogene period.
The Winona Formation is a sand geologic formation in Mississippi. It preserves fossils dating back to the Paleogene period.
The Forest Hill Formation is a geologic formation in Mississippi. It preserves fossils dating back to the Paleogene period.
The Kosciusko Formation is a geologic formation in Mississippi. It preserves fossils dating back to the Paleogene period.
The Windrow Formation is a geologic formation in Minnesota named after Windrow Bluff on Fort McCoy, Monroe County, Wisconsin. It preserves fossils dating back to the Cretaceous period.
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