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ringsaker-limestone

By | Published September 26, 2024 | Full size is 1134 × 759 pixels

Impure Ordovician Ringsaker limestone, with a cut orthoceras fossil in the middle. Photo by Per Storemyr

Impure Ordovician Ringsaker limestone, with a cut orthoceras fossil in the middle. Photo by Per Storemyr

Impure Ordovician Ringsaker limestone, with a cut orthoceras fossil in the middle. Photo by Per Storemyr

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