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They Find 18 Million-Year-Old Fossils of Jarillas: the Discovery that Reveals Patagonia’s Arid Past

Summary by rionegro.com.ar
A CONICET research team found jarilla fossils in sediments of the Mariño Formation, with an estimated age of 18 million years. The discovery was in Potrerillos, Mendoza, and was published in the Journal of Systematic Palaeontology. “These fossils show us that the jarilla and its relatives were already adapted to...
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The research of a Conicet team made it possible to understand how these plants responded to environmental changes over geological time. In addition, the finding provides current tools to infer the genetic and ecological potential of this type of vegetation to tolerate water stress.

A CONICET research team found jarilla fossils in sediments of the Mariño Formation, with an estimated age of 18 million years. The discovery was in Potrerillos, Mendoza, and was published in the Journal of Systematic Palaeontology. “These fossils show us that the jarilla and its relatives were already adapted to...

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rionegro.com.ar broke the news on Wednesday, April 15, 2026.
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