01546oam 2200445 450 991070572970332120170705110835.0(CKB)5470000002453112(OCoLC)891575106(OCoLC)995470000002453112(EXLCZ)99547000000245311220140929d1966 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierMattheva, a proposed new class of mollusks /by Ellis L. YochelsonWashington :United States Department of the Interior, Geological Survey,1966.1 online resource (iii, B11 pages, 1 page of plates) illustrationsGeological Survey professional paper ;523-BContributions to paleontologyTitle from title screen (viewed September 24, 2014)."A discussion of the biologic placement of the Late Cambrian fossil Matthevia."Includes bibliographical references (page B9) and index.Mollusks, FossilClassificationMollusksfastMollusks, FossilMollusks.Yochelson Ellis L(Ellis Leon),1928-2006,1389960Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910705729703321Mattheva, a proposed new class of mollusks3447158UNINA