"Fossiles Identification Congrès." . . "Trace fossils." . . "Paleontología estratigráfica." . . "Traces fossiles." . . "Joint Annual Meeting of the SEPM and American Association of Petroleum Geologists (1980 ; Denver, CO)" . . . "Paléontologie." . . "Joint annual meeting of the Society of economic paleontologists and mineralogists and American association of petroleum geologists (1980 : Denver, Colo.)" . . . "Skały osadowe." . . "Society of Economic Paleontologists and Mineralogists (United States ; bis 1989)" . . . . . . . . . . . . . . . . . . . . . "Biogenic structures: their use in interpreting depositional environments" . . . . "Biogenic structures : their use in interpreting depositional environments" . . . . "Biogenic structures their use in interpreting depositional environments"@en . . . . . . . . . . . . "Biogenic structures : their use in interpreting depositional environments : [a symposium held in Denver in June 1980]" . . . . . . "American Association of Petroleum Geologists." . . "International Geological Congress." . . . "Skamieniałości śladowe." . . "structure sédimentaire [congrès]" . . "Paleopedologia." . . . . "Origen de la vida" . . "Paleontologia." . . "Poster Session Symposium on Biogenic Structures and Depositional Environments (1980 ; Denver, CO)" . . . "Sedimentacao Marinha." . . "Biofazies." . .