One natural ammonite of the genus Perisphinctes from Madagascar. Jurassic age (Oxfordian age, ~161 to 156 mya) ammonite that has been lightly polished. From the Toliara Province, Morondava River Basin. Each piece measures about 1 x 1.25 x .5 inches and weighs less than an ounce.
0.5 × 1 × 1.25 in
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