Cerro Azul Formation
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The Cerro Azul Formation, also described as Epecuén Formation, is a geological formation of Late Miocene age in the Colorado Basin of the Buenos Aires and La Pampa Provinces in northeastern Argentina.
Image: Thylacosmilus 3D model
Image: Zaedyus pichiy Museo Civico di Storia Naturale Giacomo Doria Genoa, Italy DSC03056
Image: Macrauchenia (reconstruction)
Image: Procariama
South American land mammal age
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The South American land mammal ages (SALMA) establish a geologic timescale for prehistoric South American fauna beginning 64.5 Ma during the Paleocene and continuing through to the Late Pleistocene. These periods are referred to as ages, stages, or intervals and were established using geographic place names where fossil materials where obtained.
Since about 110 million years ago, South America and Africa are detached
Antarctica, Australia and South America were attached as one large isolated paleocontinent for about 15 million years