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By: Brues, Charles T. (Charles Thomas),Edition:Publication info: Cambridge, Mass, The Museum, 1908Volume:Series:Holding Institution: University of California LibrariesSubjects: Colorado Florissant Hymenoptera, Fossil Paleontology TertiaryBHL Collections:
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By: Kirchner, Walter Charles George,Edition:Publication info: [n.p.], 1898Volume:Series:Holding Institution: New York Botanical Garden, LuEsther T. Mertz LibrarySubjects: Colorado Florissant Paleobotany TertiaryBHL Collections: