Hatchetigbee Bluff Formation

Hatchetigbee Bluff Formation
Stratigraphic range: Ypresian (Wasatchian) ~
Type	Formation
Unit of	Wilcox Group
Sub-units	Bashi Member
Lithology
Primary	Marl, sandstone
Other	Shale, siltstone
Location
Coordinates	31.3°N 86.1°W / 31.3; -86.1
Approximate paleocoordinates	33.1°N 71.7°W / 33.1; -71.7
Region	Alabama Georgia (U.S. state) Louisiana File:Flag of Mississippi (2001–2020).svg 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
Hatchetigbee Bluff Formation is located in the United States Hatchetigbee Bluff Formation Hatchetigbee Bluff Formation (the United States) Hatchetigbee Bluff Formation is located in Alabama Hatchetigbee Bluff Formation Hatchetigbee Bluff Formation (Alabama)

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.

See also

• List of fossiliferous stratigraphic units in Alabama
• List of fossiliferous stratigraphic units in Georgia (U.S. state)
• List of fossiliferous stratigraphic units in Louisiana
• List of fossiliferous stratigraphic units in Mississippi
• Paleontology in Alabama
• Paleontology in Georgia (U.S. state)
• Paleontology in Louisiana
• Paleontology in Mississippi

References

Bibliography

• Sessa, J. A.; Bralower, T. J.; Patzkowsky, M. E.; Handley, J. C.; Ivany, L. C. (2012), "Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain", Paleobiology, 38 (2): 218–239, doi:10.1666/10042.1
• Dockery, D. T (1980), "Invertebrate Macropaleontolgy of the Clarke County Mississippi Area", Bulletin - Mississippi Geological, Economic and Topographic Survey, 122
• Hansen, T. A (1978), Ecological control of evolutionary rates in Paleocene - Eocene marine molluscs - Ph.D. thesis, Yale University, pp. 1–310
• Toulmin, L. D (1977), "Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region", Geological Survey of Alabama, Monograph, 13: 1–602
• Palmer, K. V.; Brann, D. C. (1965), "Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda", Bulletins of American Paleontology, 48: 1–471
• Aldrich, T. H (1921), "New Eocene species from Alabama", Bulletins of American Paleontology, 9

Further reading

• Smith, E.A., and Johnson, L.C., 1887, Tertiary and Cretaceous strata of the Tuscaloosa, Tombigbee, and Alabama Rivers: U.S. Geological Survey Bulletin, 43, 189 p.