Category:Ordovician formations in Iowa
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Preceded by Proterozoic Eon | Phanerozoic Eon | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Paleozoic Era | Mesozoic Era | Cenozoic Era | ||||||||||
Cambrian | Ordovician | Silurian | Devonian | Carboniferous | Permian | Triassic | Jurassic | Cretaceous | Paleogene | Neogene | 4ry |
Subcategories
This category has the following 18 subcategories, out of 18 total.
.
B
C
- Cummingsville Formation (2 F)
D
F
G
M
- Mifflin Formation (1 F)
N
- Neda Formation (3 F)
O
P
S
- St. Peter Sandstone in Iowa (1 F)
W
- Winneshiek Shale (12 F)
- Wise Lake Formation (1 F)