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By: Olson, Everett Claire, - Roy, Sharat Kumar, - Ross, Lillian A.Edition:Publication info: [Chicago], Chicago Natural History Museum Press, 1951Volume: v.11:no.2 (1951)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: DiplocaulusBHL Collections:
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By: Olson, Everett Claire,Edition:Publication info: Chicago, Chicago Natural History Museum, 1952Volume: v.10:no.14 (1952)Series:Holding Institution: Field Museum of Natural History LibrarySubjects: Diplocaulus Paleontology Permian TexasBHL Collections: