Tornillo Group
The Tornillo Group is a geologic group in Texas which dates from to the Late Cretaceous to the Early Eocene period.
Tornillo Group | |
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Stratigraphic range: Late Cretaceous - Early Eocene | |
Type | Group |
Sub-units | Javelina Formation, Black Peaks Formation, Hannold Hill Formation |
Location | |
Region | Texas |
Country | United States |
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