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.[1] The formation is named for Hatchetigbee Bluff on the Tombigbee River, Washington County, Alabama.[2]

Hatchetigbee Bluff Formation
Stratigraphic range: Ypresian (Wasatchian)
~55–50 Ma
TypeFormation
Unit ofWilcox Group
Sub-unitsBashi Member
Lithology
PrimaryMarl, sandstone
OtherShale, siltstone
Location
Coordinates31°18′N 86°06′W / 31.3°N 86.1°W / 31.3; -86.1
Approximate paleocoordinates33°06′N 71°42′W / 33.1°N 71.7°W / 33.1; -71.7
Region Alabama
 Georgia (U.S. state)
 Louisiana
Mississippi
Country United States
ExtentGulf of Mexico Basin
Type section
Named forHatchetigbee Bluff, Tombigbee River, Washington County, Alabama
Named bySmith & Johnson
Year defined1887
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)

Wasatchian correlations

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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
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   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
  Wasatchian volcanoclastics

  Wasatchian fauna

  Wasatchian flora
Volcanic Yes No Yes No Yes No Yes No Yes No

See also

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References

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Bibliography

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  • 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

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  • 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.