Santacrucian
The Santacrucian age is a period of geologic time (17.5—16.3 Ma) within the Miocene epoch of the Neogene used more specifically with South American Land Mammal Ages. It follows the Colhuehuapian and precedes the Friasian age.[1]
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| Preceded by Proterozoic Eon | Phanerozoic Eon | |||||||||||
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| Paleozoic Era | Mesozoic Era | Cenozoic Era | ||||||||||
| Cambrian | Ordovician | Silurian | Devonian | Carboniferous | Permian | Triassic | Jurassic | Cretaceous | Paleogene | Neogene | 4ry | |
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