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Casamayoran
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Casamayoran
The Casamayoran (Spanish: Casamayorense) age is a period of geologic time (around 48.0–39.0 Ma) within the middle Eocene epoch of the Paleogene, used more specifically within the South American land mammal age (SALMA) classification. It follows the Riochican and precedes the Mustersan age. The Casamayoran is often split into the older Vacan and younger Barrancan subages, which are sometimes considered distinct enough to qualify as SALMAs in their own right.
Several astrapotherian mammals are known from this period, such as Antarctodon and Albertogaudrya from Antarctica and Argentina, respectively. Albertogaudrya and Scaglia were the size of a sheep or a small tapir, hence among the larger mammals in South America at this time.
This age is named after the Casamayor Formation of the Golfo San Jorge Basin.
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Casamayoran
The Casamayoran (Spanish: Casamayorense) age is a period of geologic time (around 48.0–39.0 Ma) within the middle Eocene epoch of the Paleogene, used more specifically within the South American land mammal age (SALMA) classification. It follows the Riochican and precedes the Mustersan age. The Casamayoran is often split into the older Vacan and younger Barrancan subages, which are sometimes considered distinct enough to qualify as SALMAs in their own right.
Several astrapotherian mammals are known from this period, such as Antarctodon and Albertogaudrya from Antarctica and Argentina, respectively. Albertogaudrya and Scaglia were the size of a sheep or a small tapir, hence among the larger mammals in South America at this time.
This age is named after the Casamayor Formation of the Golfo San Jorge Basin.