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The Malargüe Group is a group of geologic formations found in Argentina. Rocks in the Malargüe Group fall within the late Campanian to Danian stages of the Late Cretaceous Period, about 80 million to 61.7 million years in age. It overlies the older Neuquen Group.
There are three formations within the Malargüe Group:
- Allen Formation (middle Campanian to early Maastrichtian)
- Jagüel Formation (middle to late Maastrichtian)
- Roca Formation (Danian)
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