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Anagiri, Agano, Hanno city, Saitama pref., Japan

Late Carboniferous-Permian, Paleozoic (280 Ma)


Width: 30 mm. Crinoid fossil on the surface of weathered limestone. Structure of the crinoids were etched out by weathering. Recovered from the Late Carboniferous to Permian limestone the Middle Jurassic (175 Ma) Sumaizuku unit, a member of the Northern Chichibu accretionary complex.

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