El Doctor Formation
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The El Doctor Formation is a geologic formation in Mexico. It preserves fossils dating back to the Albian and Cenomanian stages of the Cretaceous period.[1]
Quick Facts Type, Sub-units ...
El Doctor Formation | |
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Stratigraphic range: Albian-Cenomanian ~112–95 Ma | |
Type | Formation |
Sub-units | La Negra Member |
Lithology | |
Primary | Lime mudstone |
Location | |
Coordinates | 20.8°N 99.3°W / 20.8; -99.3 |
Approximate paleocoordinates | 18.9°N 64.5°W / 18.9; -64.5 |
Region | Hidalgo |
Country | Mexico |
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