# Hatchetigbee Bluff Formation

The Hatchetigbee Bluff Formation is a geologic formation in Alabama, Georgia, Louisiana and Mississippi. The youngest unit of the Wilcox Group preserves fossils dating back to the Ypresian stage of the Eocene period, or Wasatchian in the NALMA classification. The formation is named for Hatchetigbee Bluff on the Tombigbee River, Washington County, Alabama.

## Wasatchian correlations

Wasatchian correlations in North America :
| Formation | Wasatch | DeBeque | Claron | Indian Meadows | Pass Peak | Tatman | Willwood | Golden Valley | Coldwater | Allenby | Kamloops | Ootsa Lake | Margaret | Nanjemoy | Hatchetigbee | Tetas de Cabra | Hannold Hill | Coalmont | Cuchara | Galisteo | San Jose | Ypresian (IUCS) • Itaboraian (SALMA) Bumbanian (ALMA) • Mangaorapan (NZ) |
| Basin | Powder River Uinta Piceance Colorado Plateau Wind River Green River Bighorn | Piceance | Colorado Plateau | Wind River | Green River | Bighorn | Bighorn | Williston | Okanagan | Princeton | Buck Creek | Nechako | Sverdrup | Potomac | GoM | Laguna Salada | Rio Grande | North Park | Raton | Galisteo | San Juan | Hatchetigbee Bluff Formation (North America) |
| Country | United States | United States | United States | United States | United States | United States | United States | United States | Canada | Canada | Canada | Canada | Canada | United States | United States | Mexico | United States | United States | United States | United States | United States | | Hatchetigbee Bluff Formation (North America) |
| Copelemur | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Coryphodon | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Diacodexis | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Homogalax | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Oxyaena | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Paramys | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Primates | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Birds | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Reptiles | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Fish | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Insects | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Flora | | | | | | | | | | | | | | | | | | | | | | Hatchetigbee Bluff Formation (North America) |
| Environments | Alluvial-fluvio-lacustrine | Fluvial | | | | Fluvial | Fluvio-lacustrine | Fluvial | Lacustrine | Lacustrine | Fluvio-lacustrine | Fluvio-lacustrine | Deltaic-paludal | Shallow marine | Shallow marine | Fluvial | Shallow marine | Fluvial | | Fluvial | Fluvial | Wasatchian volcanoclastics Wasatchian fauna Wasatchian flora |
| Volcanic | Yes | No | No | No | No | No | No | No | Yes | No | Yes | No | Yes | No | No | No | No | No | No | Yes | No | Wasatchian volcanoclastics Wasatchian fauna Wasatchian flora |