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Start Over Formats Text ✖Remove constraint Formats: Text Authors Osborn, Henry Fairfield, 1857-1935, author ✖Remove constraint Authors: Osborn, Henry Fairfield, 1857-1935, author Titles Characters of Protoceras (Marsh), the new artiodactyl from the lower Miocene ✖Remove constraint Titles: Characters of Protoceras (Marsh), the new artiodactyl from the lower Miocene

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