| Tuscahoma Formation | |
| Type: | Formation |
| Age: | Thanetian to Ypresian, |
| Prilithology: | Sandstone |
| Region: | Mississippi, Alabama |
| Unitof: | Wilcox Group |
| Subunits: | Bells Landing Member, Greggs Landing Member |
| Underlies: | Bashi Formation |
| Overlies: | Nanafalia Formation |
| Period: | Thanetian |
The Tuscahoma Formation or Tuscahoma Sand is a geologic formation in Mississippi and Alabama, USA. It preserves fossils dating back to the early Paleogene period, from the Late Paleocene and Early Eocene.[1] It was primarily deposited in a marine habitat, but one Wasatchian-aged locality near Meridian, Mississippi was deposited in an estuarine habitat that preserves a significant terrestrial vertebrate fauna.[2]