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Bulletin of the United States National Museum · 1915 · 77 citations · 0 references
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Natural SciencesEarth SciencesZoologyPaleoclimatologySystematic PaleontologyVertebrate PaleontologyArthropod PaleontologyAsteroid PaleontologyPaleobotanical TaxonomyPaleotaxonomic RevisionPaleozoic EchinodermsPaleozoic FossilsPaleozoic Insect FaunasSystematic Paleobotany