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| Tanque Formation Stratigraphic range: Cretaceous | |
|---|---|
| Type | Formation |
| Location | |
| Country | Mexico |
The Tanque Formation is a geologic formation in Mexico. It preserves fossils dating back to the Cretaceous period.
 | This article about a specific stratigraphic formation in Mexico is a stub. You can help Wikipedia by expanding it. |
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The Prairie Bluff Chalk is a geologic formation in Alabama and Mississippi. It preserves fossils dating back to the Cretaceous period.
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