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25 3/4" Mammoth Rib Bone Fossil First Image

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25 3/4" Mammoth Rib Bone Fossil First Image

25 3/4" Mammoth Rib Bone Fossil

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25 3/4” Mammoth or Mastodon Bone, found in Iowa (1 of 7)

25 3/4” Mammoth or Mastodon Bone, found in Iowa

Heartland Artifact Auctions

Mar 22, 2026

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