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PHYS.Org/AFP: "Costa Rica Digs up Mastodon, Giant Sloth Bones in Major Archaeological Find"

The discovery of 49 bone pieces from Ice Age megafauna sheds light on species extinction and enhances Costa Rica's role in regional paleontological research.

  • Today, the Museo Nacional de Costa Rica announced researchers confirmed fossils of a mastodon-like proboscidean and a giant ground sloth on private land in Cartago province.
  • Experts from the Department of Natural History inspected the site and began recovery after a local resident reported bones, with geological assessments dating the remains to between 10,000 and 40,000 years ago.
  • Researchers recovered 49 bone pieces, including a femur, vertebrae, ribs, finger bones, and tusk fragments longer than a meter, with notable preservation despite tropical conditions.
  • The museum officials plan a dedicated paleontology exhibit, with efforts directed by the Culture and Youth Minister after a local resident's report helped protect the fossils.
  • The discovery offers new research opportunities as officials say it positions Costa Rica as a key player in regional Ice Age research and could boost Cartago's tourism by attracting visitors interested in prehistoric megafauna.
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Costa Rica discovers fossils of giant sloth and mastodon in a finding that rewrites part of its most remote past and places the country back at the center of regional paleontological research. The remains, located in the province of Cartago on a confidential site, belong to species that inhabited the territory between 10,000 and 40,000 years ago. What began with the warning of a citizen ended up becoming one of the most relevant excavations of r…

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The fossils of a giant and mastrodonte, with about 40,000 years, were discovered in Costa Rica, one of the most significant paleontological discoveries of the country in recent decades, announced the National Museum of Costa Rica on this Saturday. The remains of two megafauna species of Pleistocene were located in the province of Cartago, east of the capital, San José, after a person reported the possible presence of fossils in a private propert…

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The National Museum of Costa Rica confirmed this Friday the alleged discovery of fossil remains corresponding to an ancestor of mastodon and a lazy giant in the province of Carthage, a discovery that reinforces the paleontological heritage of the country and provides new data on the megafauna that inhabited the Costa Rican territory thousands of years ago.According to preliminary information, the remains would belong to a Cuvierius, an extinct g…

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El Mundo CR broke the news in on Friday, February 13, 2026.
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