Jump to content

英文维基 | 中文维基 | 日文维基 | 草榴社区

Dubuque Formation

From Wikipedia, the free encyclopedia
Dubuque Formation
Stratigraphic range: Ordovician
TypeFormation
UnderliesMaquoketa Formation
OverliesGalena Group
Location
RegionIllinois, Minnesota
Country United States

The Dubuque Formation is a geologic formation in Illinois, Iowa, Wisconsin and Minnesota. It preserves fossils dating back to the Ordovician period.

See also

[edit]

References

[edit]