Earth:Winslow Formation

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Winslow Formation
Stratigraphic range: Carboniferous: Pennsylvanian
TypeFormation
Location
RegionArkansas
CountryUnited States
Type section
Named forWinslow, Washington County, Arkansas
Named byGeorge Irving Adams and Edward Oscar Ulrich[1]

The Winslow Formation was a geologic formation in Arkansas, now abandoned and replaced by the Atoka Formation, the Hartshorne Formation, and the lower McAlester Formation (previously Spadra Shale[2]).[3][4] It preserves fossils dating back to the Carboniferous period.

See also

  • List of fossiliferous stratigraphic units in Arkansas
  • Paleontology in Arkansas

References

  1. Adams, G.I.; Ulrich, E.O. (1904). "Zinc and lead deposits of northern Arkansas". U.S. Geological Survey Professional Paper 24 (7): 29. doi:10.1086/621186. Bibcode1904JG.....12..663.. 
  2. Hendricks, T.A.; Parks, B. (1950). "Geology of the Fort Smith District". U.S. Geological Survey Professional Paper 221-E. doi:10.3133/pp221E. 
  3. Collier, A.J. (1907). "The Arkansas coal field". U.S. Geological Survey Bulletin 326. 
  4. Purdue, A.H. (1909). Slates of Arkansas. Geological Survey of Arkansas.