Hatchetigbee Bluff Formation facts for kids
Quick facts for kids Hatchetigbee Bluff FormationStratigraphic range: Ypresian (Wasatchian) ~55–50Ma |
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Type | Formation |
Unit of | Wilcox Group |
Sub-units | Bashi Member |
Lithology | |
Primary | Marl, sandstone |
Other | Shale, siltstone |
Location | |
Coordinates | 31°18′N 86°06′W / 31.3°N 86.1°W |
Approximate paleocoordinates | 33°06′N 71°42′W / 33.1°N 71.7°W |
Region | Alabama Georgia (U.S. state) Louisiana Mississippi |
Country | United States |
Extent | Gulf of Mexico Basin |
Type section | |
Named for | Hatchetigbee Bluff, Tombigbee River, Washington County, Alabama |
Named by | Smith & Johnson |
Year defined | 1887 |
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
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) |
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Basin | Powder River Uinta Piceance Colorado Plateau Wind River Green River Bighorn |
Piceance |
Colorado Plateau |
Wind River |
Green River |
Bighorn |
Williston | Okanagan | Princeton | Buck Creek | Nechako | Sverdrup | Potomac | GoM | Laguna Salada | Rio Grande | North Park | Raton | Galisteo | San Juan | ||
Country | United States | Canada | United States | Mexico | United States | |||||||||||||||||
Copelemur | ||||||||||||||||||||||
Coryphodon | ||||||||||||||||||||||
Diacodexis | ||||||||||||||||||||||
Homogalax | ||||||||||||||||||||||
Oxyaena | ||||||||||||||||||||||
Paramys | ||||||||||||||||||||||
Primates | ||||||||||||||||||||||
Birds | ||||||||||||||||||||||
Reptiles | ||||||||||||||||||||||
Fish | ||||||||||||||||||||||
Insects | ||||||||||||||||||||||
Flora | ||||||||||||||||||||||
Environments | Alluvial-fluvio-lacustrine | Fluvial | Fluvial | Fluvio-lacustrine | Fluvial | Lacustrine | Fluvio-lacustrine | Deltaic-paludal | Shallow marine | Fluvial | Shallow marine | Fluvial | Fluvial |
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Volcanic | Yes | No | Yes | No | Yes | No | Yes | No | Yes | No |
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Hatchetigbee Bluff Formation Facts for Kids. Kiddle Encyclopedia.