Treatise on invertebrate paleontology. Part W, Miscellanea, Conodonts, conodial shells of uncertain affinities, worms, trace fossils and problematica - Hass, Wilbert H. (Wilbert Henry), 1906-1959; Moore, Raymond Cecil, 1892-1974 (Lawrence, Kan. : Geological Society of America and University of Kansas Press, 1962)
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Keywords: fosilní bezobratlí; fossil invertebrates; učebnice; textbooks