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By: Fedonkin, M. A. (Mikhail Aleksandrovich) - Yochelson, Ellis L. (Ellis Leon),Edition:Publication info: Washington, D.C, Smithsonian Institution Press, 2002Volume: no.94 (2002)Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Fossils Horodyskia moniliformis Montana Paleontology ProterozoicBHL Collections: Unearthed! Smithsonian Libraries' Paleo Collection